# NLP Reading Group

The Natural Language Processing reading group attempts to keep abreast of interesting research ideas and results that may be useful to us. We typically read and discuss one paper per week. All our past papers are listed below.

The reading group is listed every semester as a 1-credit course, 601.865 ("Selected Topics in NLP"). The instructor is Jason Eisner; contact him to get on the mailing list. At the first course meeting, we brainstorm a bunch of topics for the semester, and vote on which ones to pursue. We then spend about 4 weeks per topic. Although some topics are within NLP, many of them explore potentially relevant work from related fields such as machine learning and linguistics.

During the summer we usually catch up on the latest NLP conference papers.

*Instructions on how to present in reading group.*

*Jason's advice on how to read a paper.*

## Fall 2022

*Wednesdays 12pm, Hackerman 306.*

- Dec 7

- Nov 30 (Matthew Francis-Landau)
- Clark Barrett, Roberto Sebastiani, Sanjit A. Seshia and Cesare Tinelli (2008). Satisfiability Modulo Theories. Chapter 12 from Biere et al. (eds.),
*Handbook of Satisfiability*.

- Nov 16 (Guest: Jennifer White)
- Jennifer White and Ryan Cotterell (2022). Equivariant Transduction through Invariant Alignment. COLING.

- Nov 9
- Albert Gu, Tri Dao, Stefano Ermon, Atri Rudra, Christopher Ré (2020). HiPPO: Recurrent Memory with Optimal Polynomial Projections. arXiv.

- Oct 26 (Leo Du)
- Will Grathwohl, Kevin Swersky, Milad Hashemi, David Duvenaud, Chris J. Maddison (2021). Oops I Took A Gradient: Scalable Sampling for Discrete Distributions. ICML.

- Oct 19 (Sophia Sklaviadis)
- Ongoing work on RNNG and VAE.

- Oct 12 (Brian Lu)
- Pengcheng Yin, Chunting Zhou, Junxian He, and Graham Neubig (2018). StructVAE: Tree-structured Latent Variable Models for Semi-supervised Semantic Parsing. ACL.

- Oct 5 (Suzanna Sia)
- Review of VAE variants.

- Sep 28
- Timo Schick et al. (2022). PEER: A collaborative language model. arXiv.

- Sep 21 (Lisa Li)
- Xiang Lisa Li, John Thickstun, Ishaan Gulrajani, Percy Liang, and Tatsunori B. Hashimoto (2022). Diffusion-LM Improves Controllable Text Generation. arXiv.

- Sep 14
- VAE discussion.

- Sep 7
- Calvin Luo (2022). Understanding Diffusion Models: A Unified Perspective. arXiv.

## Summer 2022

- Aug 24 (Leo Du)
- Guy Emerson (2020). Autoencoding Pixies: Amortised Variational Inference with Graph Convolutions for Functional Distributional Semantics. ACL.
- See also Guy Emerson's thesis.

- Jul 27, Aug 3 (Brian Lu)
- Abulhair Saparov and Tom Mitchell (2022). Towards General Natural Language Understanding with Probabilistic Worldbuilding. TACL.

- Jun 15 (Leo Du)
- Goldblum, Geiping, et al. (2020). Truth or backpropaganda? An empirical investigation of deep learning theory. ICLR.

## Spring 2022

- May 4 (Felix Yu)
- Xiujun Li et al. (2020). Oscar: Object-semantics aligned pre-training for vision-language tasks. ECCV.
- Luowei Zhou et al. (2020). Unified vision-language pre-training for image captioning and VQA. AAAI.
- Hu, Xiaowei, et al. (2020). VIVO: Visual Vocabulary Pre-Training for Novel Object Captioning. arXiv.

- Apr 20 (Tim Vieira)

- Esparza, Kiefer, and Luttenberger (2007). An Extension of Newton’s Method to ω-Continuous Semirings. In Proceedings of the International Conference on Developments in Language Theory.

- Apr 13 (Leo Du)
- Andrew M. Saxe; James L. McClelland; Surya Ganguli (2014). Exact solutions to the nonlinear dynamics of learning in deep linear neural networks. ICLR.
- Andrew M. Saxe; James L. McClelland; Surya Ganguli (2019). A mathematical theory of semantic development in deep neural networks. PNAS.
- Anthropic (2022). In-context Learning and Induction Heads.

- Apr 6 (Suzanna Sia)
- Anthropic (2021). A Mathematical Framework for Transformer Circuits.

- Mar 30 (Jason Eisner)
- Liang Huang, Suphan Fayong, & Yang Guo (2012). Structured Perceptron with Inexact Search. NAACL. slides

- Mar 16 (Brian Lu)
- Max Welling, Yee Whye Teh (2011). Bayesian Learning via Stochastic Gradient Langevin Dynamics. ICML.

- Mar 9 (Cihan Xiao)
- Mathias Niepert, Pasquale Minervini, and Luca Franceschi (2021). Implicit MLE: Backpropagating Through Discrete Exponential Family Distributions. NeurIPS.
- Relevant background: Papandreou and Yuille (2011). Perturb-and-MAP Random Fields: Using Discrete Optimization to Learn and Sample from Energy Models.

- Mar 2 (Steven Tan)
- Yang Song (2021). Generative Modeling by Estimating Gradients of the Data Distribution. Blog post.

- Feb 23 (Sabrina Mielke)
- Albert Gu, Karan Goel, Christopher Re (2022). Efficiently Modeling Long Sequences with Structured State Spaces. ICLR.

- Feb 16 (Ryan Cotterell)
- David Chiang, Jacob Andreas, Daniel Bauer, Karl Moritz Hermann, Bevan Jones, Kevin Knight (2013). Parsing Graphs with Hyperedge Replacement Grammars. ACL.

- Feb 9 (Matthew Francis-Landau)
- Elaine Angelino, Nicholas Larus-Stone, Daniel Alabi, Margo Seltzer, Cynthia Rudin (2018). Learning Certifiably Optimal Rule Lists for Categorical Data. JMLR.

- Feb 2 (Sophia Sklaviadis)
- Yizhou Zhao, Liang Qiu, Wensi Ai, Feng Shi, Song-Chun Zhu (2020). Vertical-Horizontal Structured Attention for Generating Music with Chords. arXiv.

## Fall 2021

*Wednesdays 12pm, in Hackerman 306.*

- Dec 1 (Felix Yu)
- Chandan Singh, W. James Murdoch, Bin Yu (2019). Hierarchical Interpretations for Neural Network Predictions. ICLR.
- Xisen Jin, Zhongyu Wei, Junyi Du, Xiangyang Xue, Xiang Ren (2020). Towards Hierarchical Importance Attribution: Explaining Compositional Semantics for Neural Sequence Models. ICLR.

- Nov 17 (Suzanna Sia)
- Henri Prade and Gilles Richard (2021). Analogical Proportions: Why They Are Useful in AI IJCAI. Suz summary blogpost

- Nov 10 (Leo Du)
- Jingjing Xu, Hao Zhou, Chun Gan, Zaixiang Zheng, Lei Li (2021). Vocabulary Learning via Optimal Transport for Neural Machine Translation. ACL.

- Nov 3 (Matthew Francis-Landau)
- Song Han, Huizi Mao, William J. Dally. (2016) Deep Compression: Compressing Deep Neural Networks with Pruning, Trained Quantization and Huffman Coding. ICLR.

- Oct 27 (Sophia Sklaviadis)
- Jiong Cai, Yong Jiang, Kewei Tu (2017). CRF Autoencoder for Unsupervised Dependency Parsing. ACL.
- Waleed Ammar, Chris Dyer, Noah A. Smith (2014). Conditional Random Field Autoencoders for Unsupervised Structured Prediction. NeurIPS.
- Yu Zhang, Zhenghua Li, Min Zhang (2020). Efficient Second-Order TreeCRF for Neural Dependency Parsing. ACL.

- Oct 20 (Chenghao Yang)
- Weizhe Yuan, Graham Neubig, Pengfei Liu (2021). BARTScore: Evaluating Generated Text as Text Generation. NeurIPS.
- Tianyi Zhang, Varsha Kishore, Felix Wu, Kilian Q. Weinberger, Yoav Artzi (2020). BERTScore: Evaluating Text Generation with BERT. ICLR.
- Wei Zhao, Maxime Peyrard, Fei Liu, Yang Gao, Christian M. Meyer, Steffen Eger (2019). MoverScore: Text Generation Evaluating with Contextualized Embeddings and Earth Mover Distance. EMNLP.

- Oct 13 (Brian Lu)
- Patrice Y. Simard, Saleema Amershi, David M. Chickering, Alicia Edelman Pelton, Soroush Ghorashi, Christopher Meek, Gonzalo Ramos, Jina Suh, Johan Verwey, Mo Wang, John Wernsing (2017). Machine Teaching: A New Paradigm for Building Machine Learning Systems. Arxiv.
- Gonzalo Ramos, Christopher Meek, Patrice Simard, Jina Suh, Soroush Ghorashi (2020). Interactive machine teaching: a human-centered approach to building machine-learned models. Human-Computer Interaction.

- Oct 6 (Steven Tan)
- Jiatao Gu, Changhan Wang, Jake Zhao (2019). Levenshtein Transformer. NeurIPS.

- Sep 29 (Jason Eisner)
- Gabriel Peyre (2019). Optimal transport for machine learning (talk video). The Alan Turing Institute.

- Sep 22 (Devanshu Singh)
- Mehrad Moradshahi, Hamid Palangi, Monica S. Lam, Paul Smolensky, Jianfeng Gao (2019). HUBERT Untangles BERT to Improve Transfer across NLP Tasks. Arxiv
- Yichen Jiang, Asli Celikyilmaz, Paul Smolensky, Paul Soulos, Sudha Rao, Hamid Palangi, Roland Fernandez, Caitlin Smith, Mohit Bansal, Jianfeng Gao (2021). Enriching Transformers with Structured Tensor-Product Representations for Abstractive Summarization. NAACL.
- Denis Kleyko, Mike Davies, E. Paxon Frady, Pentti Kanerva, Spencer J. Kent, Bruno A. Olshausen, Evgeny Osipov, Jan M. Rabaey, Dmitri A. Rachkovskij, Abbas Rahimi, Friedrich T. Sommer (2021). Vector Symbolic Architectures as a Computing Framework for Nanoscale Hardware. Arxiv.
- Paul Soulos, Tom McCoy, Tal Linzen, Paul Smolensky (2019). Discovering the Compositional Structure of Vector Representations with Role Learning Networks. BlackboxNLP.
- Hamid Palangi, Paul Smolensky, Xiaodong He, Li Deng (2018). Question-Answering with Grammatically-Interpretable Representations. AAAI.

- Sep 15 (Hongyuan Mei)
- Vardan Papyan, X.Y. Han, David L. Donoho (2020). Prevalence of Neural Collapse during the terminal phase of deep learning training. PNAS.

- Sep 8 (Brian Lu)
- Jonathan Lorraine, Paul Vicol, David Duvenaud (2020). Optimizing Millions of Hyperparameters by Implicit Differentiation. AISTATS. (mlr link/implementation)

## Summer 2021

- Aug 25 (Sabrina Mielke)
- Max B Paulus, Chris J. Maddison, Andreas Krause (2021). Rao-Blackwellizing the Straight-Through Gumbel-Softmax Gradient Estimator. ICLR. (forum/slides)

- Aug 18 (Matthew Francis-Landau)
- Anselm Paulus, Michal Rolínek, Vít Musil, Brandon Amos, Georg Martius (2021). CombOptNet: Fit the Right NP-Hard Problem by Learning Integer Programming Constraints. ICML.

- Aug 4 (Tim Vieira)
- Jialin Song, Yuxin Chen, Yisong Yue (2019). A General Framework for Multi-fidelity Bayesian Optimization with Gaussian Processes. AISTATS.

- July 28 (Chu-Cheng Lin)
- Belinda Z. Li, Maxwell Nye, Jacob Andreas (2021). Implicit Representations of Meaning in Neural Language Models. ACL.

- July 21 (Leo Du)
*Discussion of graph signal processing (graph fourier transform, graph convolutions etc.).*

- July 14 (Chenghao Yang)
- Joshua Robinson, Ching-Yao Chuang, Suvrit Sra, Stefanie Jegelka (2021). Contrastive Learning with Hard Negative Samples. ICLR.
- Recommended readings: Lilian Weng's blogposts about Contrastive Representation Learning, SimCLR(ICML'20), A Theoretical Analysis of Contrastive Unsupervised Representation Learning(ICML'19), and PU-learning(KDD'08).

- July 7 (Matthew Francis-Landau)
- Qiaochu Chen, Aaron Lamoreaux, Xinyu Wang, Greg Durrett, Osbert Bastani, Isil Dillig (2021) Web question answering with neurosymbolic program synthesis PLDI

- Jun 23 (Sabrina Mielke)
- Explanation of BPE (Gage, 1994; Sennrich et al., 2016) and Unigram LM (Kudo, 2018) subword tokenizers, leading into modeling of the unigram (word) distribution as a two-stage process a la Goldwater et al. (2006), neuralized by Nikkarinen et al. (2021).

- Jun 16 (Suzanna Sia)
- Kawin Ethayarajh, Dan Jurafsky (2021). Attention flows are Shapley value explanations. ACL.

- Jun 2 (Brian Lu)
- Muhammad Khalifa, Hady Elsahar, Marc Dymetman (2021). A distributional approach to controlled text generation. ICLR.

- May 26 (Ryan Cotterell)
*Discussion of group-equivariant architectures.*

- May 19 (Hongyuan Mei)
- Yuval Atzmon, Felix Kreuk, Uri Shalit, Gal Chechik (2020). A causal view of compositional zero-shot recognition. NeurIPS.

## Spring 2021

- May 5 (Tim Vieira)
- Viktor Leis, Bernhard Radke, Andrey Gubichev, Alfons Kemper, Thomas Neumann (2017). Cardinality Estimation Done Right: Index-Based Join Sampling. Conference on Innovative Data Systems Research.

- Apr 28 (Matthew Francis-Landau)
- Ameesh Shah, Eric Zhan, Jennifer J. Sun, Abhinav Verma, Yisong Yue, Swarat Chaudhuri (2020). Learning differentiable programs with admissible neural heuristics. NeurIPS.

- Apr 21 (Nathaniel Weir)
- Kevin Ellis, Catherine Wong, Maxwell Nye, Mathias Sable-Meyer, Luc Cary, Lucas Morales, Luke Hewitt, Armando Solar-Lezama, Joshua B. Tenenbaum (2020). DreamCoder: Growing generalizable, interpretable knowledge with wake-sleep Bayesian program learning. arXiv. supplement

- Apr 14 (Xiang Lisa Li)
- Yang Song, Stefano Ermon (2019). Generative Modeling by Estimating Gradients of the Data Distribution. NeurIPS.

- Apr 7 (Chenghao Yang)
- Hao Peng, Nikolaos Pappas, Dani Yogatama, Roy Schwartz, Noah A. Smith, and Lingpeng Kong (2021). Random feature attention. ICLR.

- Mar 31 (Suzanna Sia)
- Siddhant M. Jayakumar et al. Multiplicative interactions and where to find them. ICLR.

- Mar 24 (Ryan Cotterell)
- K. Vijay-Shanker and David J. Weir (1989). Recognition of combinatory categorial grammars and linear indexed grammars. ACL.

- Mar 17 (Ryan Cotterell)
- Dasgupta, Papadimitriou, & Vazirani (2006). Quantum algorithms. Chapter 10 of
*Algorithms*. McGraw Hill.*See also blog posts by Tai-Danae Bradley.*

- Mar 10 (Sabrina Mielke)
- MCMC pt. 3 (RJMCMC).
- Philippe Gagnon & Arnaud Doucet (2020). Non-reversible jump algorithms for Bayesian nested model selection. J. of Computational and Graphical Statistics. slides

- Mar 3 (Sabrina Mielke)
- MCMC pt. 2 (Irreversible chains, continuous transforms and Jacobians).

- Feb 24 (Sabrina Mielke)
- MCMC pt. 1 (Markov chains, balance condition).
- Span Spanbauer, Cameron Freer, Vikash Mansinghka (2020). Deep involutive generative models for neural MCMC. arXiv.
- Marco Cusumano-Towner, Alexander K. Lew, Vikash K. Mansinghka (2020). Automating involutive MCMC using probabilistic and differentiable programming. arXiv.
- Kirill Neklyudov, Max Welling, Evgenii Egorov, Dmitry Vetrov (2020). Involutive MCMC: A unifying framework. arXiv.

- Feb 17 (Devanshu Singh)
- Bellanger and McCallum (2016). Structured prediction energy networks. ICML.

- Feb 10 (Brian Lu)
- Sachan and Xing (2017). Learning to solve geometry problems from natural language demonstrations in textbooks. *SEM.

- Feb 3 (Chu-Cheng Lin & Matthew Francis-Landau)
- Wang et al. (2019). SATNet: Bridging deep learning and logical reasoning using a differentiable satisfiability solver ICML

- Jan 27 (Tim Vieira)
- Anna Harutyunyan et al. (2019). Hindsight credit assignment. NeurIPS.

- Jan 20 (Ryan Cotterell)
- Andrew Drozdov, Pat Verga, Mohit Yadav, Mohit Iyyer, Andrew McCallum (2019). Unsupervised latent tree induction with deep inside-outside recursive autoencoders. NAACL.

- Jan 13 (Suzanna Sia)
- Simon Du, Wei Hu (2019). Ultra-Wide deep nets and the neural tangent kernel (NTK). Blog post summarizing multiple papers.

- Jan 6 (Jason Eisner)
- Nando de Freitas, Pedro Højen-Sørensen, Michael I. Jordan, Stuart Russell (2001). Variational MCMC. UAI.
- Ardavan Saeedi, Tejas D. Kulkarni, Vikash K. Mansinghka, Samuel J. Gershman (2017). Variational particle approximations. JMLR.
- Christian A. Naesseth, Scott W. Linderman, Rajesh Ranganath, David M. Blei (2018). Variational sequential Monte Carlo. AISTATS.

## Fall 2020

### Understanding Neural Magic

- Dec 10 (Xiao Liu)
- Elena Voita, Ivan Titov (2020). Information-Theoretic Probing with Minimum Description Length. ACL.

- Dec 3 (Aaron Mueller)
- Jesse Vig*, Sebastian Gehrmann*, Yonatan Belinkov*, Sharon Qian, Daniel Nevo, Simas Sakenis, Jason Huang, Yaron Singer, Stuart Shieber (2020). Causal Mediation Analysis for Interpreting Neural NLP: The Case of Gender Bias. arXiv.

### Multimodal Fusion

- Nov 12 (Suzanna Sia)
- Weiyao Wang, Du Tran, and Matt Feiszli (2020). What Makes Training Multi-modal Classification Networks Hard? CVPR.

### Music Modeling

- Oct 29 (Amrit Nidhi)
- Cheng-Zhi Anna Huang, Ashish Vaswani, Jakob Uszkoreit, Noam Shazeer, Ian Simon, Curtis Hawthorne, Andrew M. Dai, Matthew D. Hoffman, Monica Dinculescu, and Douglas Eck (2018). Music Transformer : Generating Music with Long Term Structure. arXiv. music samples, interactive demo

### Neuro-Symbolic Hybrids

- Oct 15 (Ankur Kejriwal)
- Jiayuan Mao, Chuang Gan, Pushmeet Kohli, Joshua B. Tenenbaum, and Jiajun Wu (2019). The Neuro-Symbolic Concept Learner: Interpreting Scenes, Words, And Sentences From Natural Supervision. ICLR.

- Oct 8 (Tim Vieira)
- Kevin Ellis, Daniel Ritchie, Armando Solar-Lezama, Josh Tenenbaum (2018). Learning to Infer Graphics Programs from Hand-Drawn Images. NeurIPS.

### Neural Nearest Neighbor Methods

*Organizer: Brian Lu*

- Oct 1 (Anton Belyy)
- Patrick Lewis, Ethan Perez, Aleksandara Piktus, Fabio Petroni, Vladimir Karpukhin, Naman Goyal, Heinrich Küttler, Mike Lewis, Wen-tau Yih, Tim Rocktäschel, Sebastian Riedel and Douwe Kiela (2020). Retrieval-Augmented Generation for Knowledge-Intensive NLP Tasks. arXiv.

- Sep 24 (Matthew Francis-Landau)
- Yu. A. Malkov and D. A. Yashunin (2018). Efficient and robust approximate nearest neighbor search using Hierarchical Navigable Small World (HNSW) graphs. arXiv.

- Sep 17 (Brian Lu)
- Urvashi Khandelwal, Omer Levy, Dan Jurafsky, Luke Zettlemoyer and Mike Lewis (2020). Generalization through Memorization: Nearest Neighbor Language Models. ICLR.

### Parsing as Tagging

- Sep 10 (Jason Eisner)
- Nikita Kitaev and Dan Klein (2020). Tetra-Tagging: Word-Synchronous Parsing with Linear-Time Inference. ACL.

## Summer 2020

### Special Session on GPT-3

- Jun 10 (Aaron Mueller, João Sedoc, Patrick Xia)
- OpenAI (2020). Language Models are Few-Shot Learners. ArXiv.

## Spring 2020

### More Efficient Transformers

*Organizer: Patrick Xia*

- May 13 (Rachel Wicks)
- Beltagy, Peters, Cohan (2020). Longformer: The Long-Document Transformer. Arxiv

- Apr 28 (Arya McCarthy) (practice talk)
- McCarthy, Li, Gu, Dong (2020). Addressing Posterior Collapse with Mutual Information for Improved Variational Neural Machine Translation. ACL

- Apr 22 (Patrick Xia)
- Kitaev, Kaiser, Levskaya (2020). Reformer: The Efficient Transformer. ICLR (Slides from this session)

### Controlled Text Generation

*Organizer: Mitchell Gordon*

- Apr 15 (Zili Huang)
- Holtzman, Buys, Du, Forbes, Choi (2020). The Curious Case of Neural Text Degeneration. ICLR
- Welleck, Kulikov, Roller, Dinan, Cho, Weston (2020). Neural Text Generation With Unlikelihood Training ICLR

- Apr 8 (Nathaniel Weir)
- Shu, Nakayama, Cho (2019). Generating Diverse Translations with Sentence Codes. ACL

- Apr 1 (Mitchell Gordon)
- Dathathri, Madotto, Lan, Hung, Frank, Molino, Yosinski, Liu (2020). Plug and Play Language Models: A Simple Approach to Controlled Text Generation. ICLR

### Human-In-The-Loop / Active Learning

*Organizer: Anton Belyy*

- Mar 25 (Joshua Miller)
- Hu, Lipton, Anandkumar, Ramanan (2019). Active Learning with Partial Feedback. ICLR

- Mar 11 (Anton Belyy)
- Yuan, Zhang, Van Durme, Findlater, Boyd-Graber (2019). Interactive Refinement of Cross-Lingual Word Embeddings. Arxiv

- Mar 4 (Anton Belyy)
- Ribeiro, Singh, Guestrin (2018). Semantically Equivalent Adversarial Rules for Debugging NLP Models. ACL

### Hyperbolic Deep Learning

*Organizer: Desh Raj*

- Feb 26 (Arya McCarthy)
- Xu, Durrett (2018). Spherical Latent Spaces for Stable Variational Autoencoders. EMNLP

- Feb 12 (Suzanna Sia)
- Meng, Huang, Wang, Zhang, Zhuang, Kaplan, Han (2019). Spherical Text Embeddings. NeurIPS

- Feb 5 (Desh Raj)
- Nickel, Kiela (2017). Poincaré Embeddings for Learning Hierarchical Representations. NeurIPS

## Fall 2019

### Current Happenings

*Organizer: Various*

- Dec 4 (Various)
- ACL Paper Reading and Feedback.

- Nov 20 (João Sedoc)
- Raffel et al. (2019). Exploring the Limits of Transfer Learning with a Unified Text-to-Text Transformer.
*ArXiV*. - Bowman (2019). Google T5 Explores the Limits of Transfer Learning.
*Synced Review (Blog Post)*.

- Nov 13 (Various)
- EMNLP Favorites presented by those who were able to attend the conference in-person.

### Model Fairness and Interpretability

*Organizer: Keith Harrigian*

- Nov 6 (Rachel Wicks)
- Gonen & Goldberg (2019). Lipstick on a Pig: Debiasing Methods Cover up Systematic Gender Biases in Word Embeddings But do not Remove Them.
*NAACL*.

- Oct 30 (Alexandra DeLucia)
- Ribeiro, Singh, & Guestrin (2016). "Why Should I Trust You?" Explaining the Predictions of Any Classifier.
*KDD*. - Lundberg & Lee (2017). A Unified Approach to Interpreting Model Predictions.
*NeurIPS*.

- Oct 23 (Keith Harrigian)
- Lipton (2016). The Mythos of Model Interpretability.
*ACM*. - Serrano & Smith (2019). Is Attention Interpretable.
*ACL*. - Jain & Wallace (2019). Attention is not Explanation.
*NAACL*. - Wiegreffe & Pinter (2019). Attention is not not Explanation.
*EMNLP*.

- Oct 16 (Suzanna Sia)
- Shen et al. (2019). Ordered Neurons: Integrating Tree Structures into Recurrent Neural Networks.
*ICLR*. - Dyer, Melis, & Blunsom (2019). A Critical Analysis of Biased Parsers in Unsupervised Parsing.
*ArXiV*.

### Spectral Learning

*Organizer: Sabrina J. Mielke*

- Sep 25 (Desh Raj)
- Guillaume Rabusseau, Tianyu Li, Doina Precup (2019). Weighted Automata and Recurrent Neural Networks through Spectral Learning. AISTATS.
- Comments: https://docs.google.com/document/d/1CgE65xFCDty3gZepKxBjOAV8Dd7dS10I2okw2jDb-EE/edit?usp=sharing

- Sep 18 (Sabrina J. Mielke)
- Borja Balle, Ariadna Quattoni, and Xavier Carreras (2014). Spectral Learning Techniques for Weighted Automata, Transducers, and Grammars (tutorial slides), sections 1-2. EMNLP.
- The main corresponding paper:
- Balle, Carreras, Luque, Quattoni (2014), Spectral learning of weighted automata: A forward-backward perspective. That part of the tutorial will recap FSAs, introduce Hankel matrices and motivate the correspondence to FSAs and give a general estimation recipe.

- If time permits, we can move on to a recent extension of this work that makes stuff work well:
- Quattoni and Carreras (2019), Interpolated Spectral N-Gram Language Models. ACL.

- Comments: https://docs.google.com/document/d/1-MSFlhhNyLfkK-I01VQI05f4F5gJyruHDNU3KBRXwqU

## Spring 2019

*This bit of the wiki got lost in a disk crash, but we should reconstruct the paper list from the emails at the time.*

### Causal NLP

*Organizers: Suzanna Sia and Zach Wood-Doughty*

### Dataset Shift for NLP / Changepoint Detection

*Organizer: Desh Raj*

### Grounded Language

*Organizer: Mitchell Gordon*

### What's Learned During Representation Learning?

*Organizer: Shijie Wu*

### Multitask/Transfer Learning for NLP

*Organizers: Fei Wu and Oliver Adams*

## Fall 2018

### Random Interesting Papers

- Dec 5 (David Mueller)
- Emma Strubell, Patrick Verga, Daniel Andor, David Weiss, and Andrew McCallum (2018). Linguistically-Informed Self-Attention for Semantic Role Labeling. EMNLP.

- Nov 28 (Hao Zhu and Chu-Cheng Lin)
- Hao Peng, Roy Schwartz, Sam Thomson, and Noah A. Smith (2018). Rational Recurrences. EMNLP.

- Nov 14 (Arya McCarthy)
- Olivia Winn and Smaranda Muresan (2018). ‘Lighter’ Can Still Be Dark: Modeling Comparative Color Descriptions. ACL 2018
- Noga Zaslavsky, Charles Kemp, Terry Regier, Naftali Tishby (2018). Efficient compression in color naming and its evolution. PNAS 2018

- Nov 7
- EMNLP debrief

### ML Scholarship

*Organizer: Patrick Xia*

- Oct 31 (Xuan Zhang)
- Yoav Goldberg (2017). An Adversarial Review of "Adversarial Generation of Natural Language" Medium blog post. Yann Lecun's response (on Facebook) and Yoav's response to that (on Medium). Original papers referenced - Adversarial Generation of Natural Language (Rejeswar et al., 2017, arXiv) and Toward Controlled Generation of Text (Hu et al., 2017, ICML)
- Joshua Goodman (2002). [Extended Comment on Language Trees and Zipping https://arxiv.org/pdf/cond-mat/0202383.pdf]. Extended version of Comment submitted to Physical Review Letters. On J. Goodman's comment to Language Trees and Zipping (the response).

- Oct 24 (Patrick Xia)
- Zachary Lipton and Jacob Steinhardt (2018). Troubling Trends in Machine Learning Scholarship. ICML Debates 2018.
- D. Sculley, Gary Holt, Daniel Golovin, Eugene Davydov, Todd Phillips, Dietmar Ebner, Vinay Chaudhary, Michael Young (2015). Hidden Technical Debt in Machine Learning Systems. NeurIPS 2015

### Deep Generative Modeling

*Organizer: Sabrina J. Mielke*

- Oct 17 (Kelly Marchisio)
- "Generating Sentences from a Continuous Space," https://arxiv.org/abs/1511.06349, Bowman et al. (2016).

- Oct 10 (Suzanna Sia)
- "Document Neural Autoregressive Distribution Estimation," http://www.jmlr.org/papers/volume18/16-017/16-017.pdf, Lauly, S., Zheng, Y., Allauzen, A., & Larochelle, H. (2017).
- Comments: https://docs.google.com/document/d/12F8uLt5vEm-Ctou1XrtVctLWSmTePHH1BuE6uztFoNc/edit?usp=sharing

- Sep 20 (Sabrina J. Mielke)
- "Neural Autoregressive Distribution Estimation," http://www.jmlr.org/papers/volume17/16-272/16-272.pdf, Uria, B., Côté, M. A., Gregor, K., Murray, I., & Larochelle, H. (2016).

### Test of Time Award Papers

*Organizer: Arya McCarthy*

- Sep 19 (Desh Raj)
- Michael Collins (2002). Disciminative Training Methods for Hidden Markov Models: Theory and Experiments with Perceptron Algorithms

- Sep 12 (David Mueller)
- Regina Barzilay and Mirella Lapata (2005). Modeling Local Coherence: An Entity-Based Approach. ACL 2005.

- Sep 5 (Arya McCarthy)

- Dan Roth and Wen-tau Yih (2004). A Linear Programming Formulation for Global Inference in Natural Language Tasks. CoNLL 2004.

## Summer 2018

- Aug 23 (Chenxi Liu)
- Adam Santoro, Felix Hill, David Barrett, Ari Morcos, and Timothy Lillicrap (2018). Measuring abstract reasoning in neural networks. ICML 2018.

- Aug 16 (Sebastian Mielke)
- André F. T. Martins and Ramón F. Astudillo (2016). From Softmax to Sparsemax: A Sparse Model of Attention and Multi-Label Classification. ICML 2016.
- Vlad Niculae, André F. T. Martins, Mathieu Blondel, and Claire Cardie (2018). SparseMAP: Differentiable Sparse Structured Inference. ICML 2018.

- Aug 9 (Jacob Buckman)
- Andrew Trask, Felix Hill, Scott Reed, Jack Rae, Chris Dyer, and Phil Blunsom (2018). Neural Arithmetic Logic Units. arXiv.

- Aug 2 (Garrett Nicolai)
- Daniel Deutsch, John Hewitt and Dan Roth (2018). A Distributional and Orthographic Aggregation Model for English Derivational Morphology. ACL. slides

- Jul 26
- ACL debriefing session.

- Jul 19 (Chu-Cheng Lin)
- Chu-Cheng Lin and Jason Eisner (2018). Neural Particle Smoothing for Sampling from Conditional Sequence Models. NAACL. poster

- Jul 12 (Xuan Zhang)
- Yoshua Bengio, Jerome Louradour, Ronan Collobert, and Jason Weston (2009). Curriculum Learning. ICML. slides

- Jul 5 (Pamela Shapiro)
- Mohit Iyyer, John Wieting, Kevin Gimpel, and Luke Zettlemoyer (2018). Adversarial Example Generation with Syntactically Controlled Paraphrase Networks. NAACL.

- Jun 29 (Xuan Zhang)
- Alane Suhr, Srinivasan Iyer, and Yoav Artzi (2018). Learning to Map Context-Dependent Sentences to Executable Formal Queries. NAACL (outstanding paper award). slides

- Jun 21 (Arya McCarthy)
- Matthew E. Peters et al. (2018). Deep Contextualized Word Representations. NAACL (outstanding paper award).
- This is the ELMo paper.

- Jun 14 (Sebastian Mielke)
- Chaitanya Malaviya, Matthew R. Gormley, and Graham Neubig (2018). Neural Factor Graph Models for Cross-lingual Morphological Tagging. ACL.
*Bonus paper:*Austin Matthews, Graham Neubig, and Chris Dyer (2018). [http://aclweb.org/anthology/N18-1130 Using Morphological Knowledge in Open-Vocabulary Neural Language Models>. NAACL.

- Jun 8
- NAACL debriefing session.

## Spring 2018

### Optimal Transport

*Organizer: Matthew Francis-Landau*

- May 3 (Patrick Xia)
- Ilya Tolstikhin, Olivier Bousquet, Sylvain Gelly, Bernhard Schoelkopf (2018). Wasserstein Auto-Encoders. ICLR.

- Apr 26 (Chu-Cheng Lin)
- Meng Zhang, Yang Liu, Huanbo Luan, and Maosong Sun(2017). Earth Mover’s Distance Minimization for Unsupervised Bilingual Lexicon Induction. EMNLP.

- Apr 19 (Matthew Francis-Landau)
- Gabriel Peyré and Marco Cuturi (2018). Computational Optimal Transport, sections 2-2.3, 6-6.2, 4.2 and 9.1. resources slides

### Inference Networks / Stochastic Inversion

*Organizer: Sebastian Mielke*

- Apr 12 (Annabelle Carrell)
- Lifu Tu and Kevin Gimpel (2018). Learning Approximate Inference Networks for Structured Prediction. ICLR.

- Apr 5 (Shijie Wu)
- Aaron van den Oord, Oriol Vinyals, Koray Kavukcuoglu (2017).. Neural Discrete Representation Learning. NIPS.

- Mar 28 (Sebastian Mielke)
- Hanjun Dai, Yingtao Tian, Bo Dai, Steven Skiena, and Le Song (2018). Syntax-Directed Variational Autoencoder for Structured Data. ICLR.

### Cooperative Dialog and Emergence of Language

*Organizers: Patrick Xia and Tom McCoy*

- Mar 15 (Annabelle Carrell)
- He He, Anusha Balakrishnan, Mihail Eric, and Percy Liang (2017). Learning Symmetric Collaborative Dialogue Agents with Dynamic Knowledge Graph Embeddings. ACL.

- Mar 8 (Tom McCoy)
- Florencia Reali, Nick Chater, and Morten H. Christiansen (2018). Simpler grammar, larger vocabulary: How population size affects language. Proceedings of the Royal Society B.
- Simon Kirby, Hannah Cornish, and Kenny Smith (2008). Cumulative cultural evolution in the laboratory: An experimental approach to the origins of structure in human language. PNAS.

- Mar 1 (Patrick Xia)
- Angeliki Lazaridou, Alexander Peysakhovich, and Marco Baroni (2017). Multi-Agent Cooperation and the Emergence of (Natural) Language. 2017. ICLR.
- Satwik Kottur, José M.F. Moura, Stefan Lee, Dhruv Batra (2017). Natural Language Does Not Emerge ‘Naturally’ in Multi-Agent Dialog. EMNLP.

### Computational Historical Linguistics

*Organizer: Arya McCarthy*

- Feb 22 (Tom McCoy)
- William A. Hamilton, Jure Leskovec, and Dan Jurafsky (2016). Diachronic Word Embeddings Reveal Statistical Laws of Semantic Change. ACL.

- Feb 15 (Arya McCarthy)
- David Hall and Dan Klein (2010). Finding Cognate Groups using Phylogenies. ACL.

- Feb 8 (Arya McCarthy)
- Lyle Campbell (2013). Historical Linguistics: An Introduction, chapter 5. (See also chapter 1.)

## Fall 2017

### Inducing "Syntax" for Semantics

*Organizer: Adam Poliak*

- Dec 14
- NIPS debriefing session

- Nov 30 (Chu-Cheng Lin)
- Franklin Chang, Gary S. Dell, and Kathryn Bock (2006). Becoming syntactic. Psychological Review. followup

- Nov 16 (Adam Poliak)
- Gormley, Mitchell, Van Durme, Dredze (2014). Low-resource semantic role labeling. ACL.
- Williams, Drozdov, Bowman (2018) Learning to parse from a semantic objective: It works. Is it syntax?. TACL.

- Other suggested papers
- Swabha Swayamdipta, Sam Thomson, Chris Dyer, and Noah A. Smith (2017). Frame-semantic parsing with softmax-margin segmental RNNs and a syntactic scaffold. arXiv.
- Luheng He, Kenton Lee, Mike Lewis, and Luke Zettlemoyer (2017). Deep Semantic Role Labeling: What Works and What's Next. ACL.

### Evaluation Metrics

*Organizer: Pamela Shapiro*

- Nov 9 (Becky Marvin)
- Philipp Koehn (2004). Statistical Significance Tests for Machine Translation Evaluation. EMNLP.
- Ying Zhang, Stephan Vogel, and Alex Waibel (2004). Interpreting BLEU/NIST Scores: How Much Improvement Do We Need to Have a Better System? LREC.

- Nov 2 (Pamela Shapiro)
- Chris Callison-Burch, Miles Osborne, and Philipp Koehn (2006). Re-evaluating the Role of BLEU in Machine Translation Research. EACL.
- Yvette Graham, Timothy Baldwin, Alistair Moffat, and Justin Zobel (2014). Is Machine Translation Getting Better over Time? EACL.

- Oct 19 (Harrison Huh)
- Neha Nayak, Gabor Angeli, and Christopher D. Manning (2016). Evaluating Word Embeddings Using a Representative Suite of Practical Tasks. ACL.
- Manaal Faruqui, Yulia Tsvetkov, Pushpendre Rastogi, and Chris Dyer (2016). Problems With Evaluation of Word Embeddings Using Word Similarity Tasks. ACL.

### Derivational Morphology

*Organizer: Arya McCarthy*

- Oct 26 (Garrett Nicolai)
- Angeliki Lazaridou, Marco Marelli, Roberto Zamparelli, and Marco Baroni (2013). Compositional-ly (sic) Derived Representations of Morphologically Complex Words in Distributional Semantics. ACL.
- Max Kisselew, Sebastian Pado, Alexis Palmer, and Jan Snajder (2015). Obtaining a Better Understanding of Distributional Models of German Derivational Morphology. Proceedings of the 11th International Conference on Computational Semantics.

- Oct 12 (Shijie Wu)
- Noam Chomsky (1968). Remarks on Nominalization. Linguistics Club, Indiana University.

- Oct 5 (Arya McCarthy)
- Ryan Cotterell, Ekaterina Vylomova, Huda Khayrallah, Christo Kirov, and David Yarowsky (2017). Paradigm Completion for Derivational Morphology. EMNLP.
- Ekaterina Vylomova, Ryan Cotterell, and Timothy Baldwin (2016). Context-Aware Prediction of Derivational Word-forms. ACL.

### Meaning Representation Formalisms

*Organizer: Sebastian Mielke*
Paper ideas and suggestions: Google doc

- Sep 28 (Seth Ebner)
- Baldridge and Kruijff (2002). Coupling CCG and Hybrid Logic Dependency Semantics. ACL.

- Sep 21 (Brian Leonard)
- Emily Bender, Dan Flickinger, Stephan Oepen, Woodley Packard, and Ann Copestake (2015). Layers of Interpretation: On Grammar and Compositionality. 11th International Conference on Computational Semantics.

- Sep 14 (Sebastian Mielke)
- Angelina Ivanova, Stephan Oepen, Lilja Øvrelid, and Dan Flickinger (2012). Who Did What to Whom? A Contrastive Study of Syntacto-Semantic Dependencies. 6th Linguistic Annotation Workshop.
- Omri Abend and Ari Rappoport (2017). The State of the Art in Semantic Representation. ACL.

## Fall 2017

*Thursdays 12-1:15pm, Hackerman 306.*

### Inducing "Syntax" for Semantics

*Organizer: Adam Poliak*

- Suggestions

1. Swayamdipta, Thomson, Dyer, Smith (2017) Frame-Semantic Parsing with Softmax-Margin Segmental RNNs and a Syntactic Scaffold. Arxiv (Chu-Cheng)

2. He, Lee, Lewis, Zettlemoyer (2017) Deep Semantic Role Labeling: What Works and What's Next. ACL

- Dec 7

- Nov 30 (Chu-Cheng)

Swayamdipta, Thomson, Dyer, Smith (2017) Frame-Semantic Parsing with Softmax-Margin Segmental RNNs and a Syntactic Scaffold. Arxiv

- Nov 16 (Adam Poliak)

- Gormley, Mitchell, Van Durme, Dredze (2014) Low-Resource Semantic Role Labeling. ACL
- Williams, Drozdov, Bowman (2017) Learning to parse from a semantic objective: It works. Is it syntax?. TACL Submission

### Evaluation Metrics

*Organizer: Pamela Shapiro*

- Nov 9 (Becky Marvin)

- Nov 2 (Pamela Shapiro)

- Oct 19 (Harrison Huh)
- Neha Nayak, Gabor Angeli, and Christopher D. Manning (2016). Evaluating Word Embeddings Using a Representative Suite of Practical Tasks. ACL.
- Manaal Faruqui, Yulia Tsvetkov, Pushpendre Rastogi, and Chris Dyer (2016). Problems With Evaluation of Word Embeddings Using Word Similarity Tasks. ACL.

### Derivational Morphology

*Organizer: Arya McCarthy*

- Oct 26 (Garrett Nicolai)
- Angeliki Lazaridou, Marco Marelli, Roberto Zamparelli, and Marco Baroni (2013). Compositional-ly (sic) Derived Representations of Morphologically Complex Words in Distributional Semantics. ACL.
- Max Kisselew, Sebastian Pado, Alexis Palmer, and Jan Snajder (2015). Obtaining a Better Understanding of Distributional Models of German Derivational Morphology. Proceedings of the 11th International Conference on Computational Semantics.

- Oct 12 (Shijie Wu)
- Noam Chomsky (1968). Remarks on Nominalization. Linguistics Club, Indiana University.

- Oct 5 (Arya McCarthy)
- Ryan Cotterell, Ekaterina Vylomova, Huda Khayrallah, Christo Kirov, and David Yarowsky (2017). Paradigm Completion for Derivational Morphology. EMNLP.
- Ekaterina Vylomova, Ryan Cotterell, and Timothy Baldwin (2016). Context-Aware Prediction of Derivational Word-forms. ACL.

### Meaning Representation Formalisms

*Organizer: Sebastian Mielke*

Paper ideas and suggestions: Google doc

- Sep 28 (Seth Ebner)
- Baldridge and Kruijff (2002). Coupling CCG and Hybrid Logic Dependency Semantics. ACL.

- Sep 21 (Brian Leonard)
- Emily Bender, Dan Flickinger, Stephan Oepen, Woodley Packard, and Ann Copestake (2015). Layers of Interpretation: On Grammar and Compositionality. 11th International Conference on Computational Semantics.

- Sep 14 (Sebastian Mielke)
- Angelina Ivanova, Stephan Oepen, Lilja Øvrelid, and Dan Flickinger (2012). Who Did What to Whom? A Contrastive Study of Syntacto-Semantic Dependencies. 6th Linguistic Annotation Workshop.
- Omri Abend and Ari Rappoport (2017). The State of the Art in Semantic Representation. ACL.

## Summer 2017

- August 25 (Jason/group)
- Jacob Andreas, Anca Dragan, Dan Klein (2017). Translating Neuralese. ACL.

- August 18 (Keisuke Sakaguchi)
- Keisuke Sakaguchi, Matt Post, Benjamin Van Durme (2017). Error-repair Dependency Parsing for Ungrammatical Texts. ACL. slides.

- Second segment (Various)
- Ilya Sutskever (2013). Training Recurrent Neural Networks. University of Toronto.

- First segment (Various)
- Percy Liang (2011). Learning Dependency-Based Compositional Semantics. UC Berkeley.

(other dissertations considered for discussion)

## Spring 2017

### Point Processes

*Organizer: Ryan Cotterell*

- May 4 (Keisuke Sakaguchi)
- Alex Kulesza and Ben Taskar (2010). Structured Determinantal Point Processes. NIPS.

- Apr 27 (Hongyuan Mei)
- Hongyuan Mei and Jason Eisner (2016). The Neural Hawkes Process: A Neurally Self-Modulating Multivariate Point Process. arXiv.

- Apr 20 (Ryan Cotterell)
- Ben Taskar. Determinantal Point Processes (tutorial).

### Transfer Learning

*Organizer: Becky Marvin*

- Apr 13 (Chu-Cheng Lin)
- Mikhail Kozhevnikov and Ivan Titov (2013). Cross-lingual Transfer of Semantic Role Labeling Models. ACL.

- Apr 6 (Xiaochen Li)
- Oscar Tackstrom, Ryan McDonald, and Jakob Uszkoreit (2012). Cross-lingual Word Clusters for Direct Transfer of Linguistic Structure. NAACL.

- Mar 30 (Becky Marvin)
- Barret Zoph, Deniz Yuret, Jonathan May, and Kevin Knight (2016). Transfer Learning for Low-Resource Neural Machine Translation. EMNLP.

### Dialog

*Applications of the two previous topics below. Organizer: Patrick Xia.*

- Mar 16 (Matthew Francis-Landau)
- Tsung-Hsien Wen (2016). A Network-based End-to-End Trainable Task-oriented Dialogue System.

- Mar 9 (Patrick Xia)
- Jiwei Li (2017). Adversarial Learning for Neural Dialogue Generation.

### Deep Reinforcement Learning

*Organizers: Hongyuan Mei, Tim Vieira*

- Mar 2 (Shijie Wu)
- Aviv Tamar, Yi Wu, Garrett Thomas, Sergey Levine, and Pieter Abbeel (2016). Value Iteration Networks. NIPS.
*David Silver's lecture on value iteration from his course might be helpful.*

- Feb 23 (Hongyuan Mei and Tim Vieira)
- David Silver (2016). Tutorial: Deep Reinforcement Learning. ICML. Slides, video.

### Generative Adversarial Nets

*Organizers: Ryan Cotterell, Dingquan Wang*

- Feb 9 and Feb 16 (Ryan Cotterell, Dingquan Wang)

- Ian Goodfellow (2016). NIPS 2016 Tutorial: Generative Adversarial Networks. slides

- Ian J. Goodfellow, Jean Pouget-Abadie, Mehdi Mirza, Bing Xu, David Warde-Farley, Sherjil Ozair, Aaron Courville, Yoshua Bengio (2014). Generative Adversarial Nets. arXiv.

- Martin Arjovsky, Soumith Chintala, Léon Bottou (2017). Wasserstein GAN. arXiv. slides slides_pdf

- Martin Arjovsky, Léon Bottou (2017). Towards Principled Methods for Training Generative Adversarial Networks. ICLR.

## Fall 2016

### Interpretation and visualization of deep networks

*Organizer: Nanyun (Violet) Peng*

- Dec 8 (Zach Wood-Doughty)
- Li, Yixuan, et al. (2015) Convergent Learning: Do different neural networks learn the same representations? [slides http://s.yosinski.com/yosinski_160503_iclr_convergent.pdf]

*Bonus paper:*Kádár, Ákos, Grzegorz Chrupała, and Afra Alishahi. Representation of linguistic form and function in recurrent neural networks.

- Dec 1 (Pamela Shapiro)
- Andrej Karpathy, Justin Johnson and Li Fei-Fei (2016) Visualizing and understanding recurrent networks. ICLR.

- Nov 17 (Nanyun (Violet) Peng)
- Tao Lei, Regina Barzilay and Tommi Jaakkola (2016) Rationalizing Neural Predictions. EMNLP.

### Neural MT and generation

*Organizer: Chu-Cheng Lin*

- Nov 10
- EMNLP debriefing session.

- Nov 3 (Becky Marvin)
- Akiko Eriguchi, Kazuma Hashimoto, and Yoshimasa Tsuruoka (2016). Tree-to-Sequence Attentional Neural Machine Translation. ACL.

- Oct 27 (Chu-Cheng Lin)
- Ilya Sutskever, Oriol Vinyals, and Quoc V. Le (2014). Sequence to Sequence Learning with Neural Networks. NIPS.
- Dzmitry Bahdanau, KyungHyun Cho, and Yoshua Bengio (2015). Neural Machine Translation by Jointly Learning to Align and Translate. ICLR.

### Deep learning in structured prediction

*Organizer: Tim Vieira*

- Sep 29 (Patrick Xia and Matthew Francis-Landau)
- Chris Dyer, Adhiguna Kuncoro, Miguel Ballesteros and Noah A. Smith (2016) Recurrent Neural Network Grammars. NAACL.

- Sep 22 (Chu-Cheng Lin and Hongyuan Mei)
- David Belanger and Andrew McCallum (2016). Structured Prediction Energy Networks. ICML.

- Sep 15 (Matthew Francis-Landau)
- Jacob Andreas, Marcus Rohrbach, Trevor Darrell and Dan Klein (2016). Learning to Compose Neural Networks for Question Answering. NAACL.

### Hypergraph algorithms

*Organizer: Travis Wolfe*

- Oct 13 (Becky Marvin)
- Alexander M. Rush, Yin-Wen Chang, and Michael Collins (2013). Optimal Beam Search for Machine Translation. EMNLP.

- Oct 6 (Tim Vieira and Zach Wood-Doughty)
- Zhifei Li and Jason Eisner (2009). First- and Second-Order Expectation Semirings with Applications to Minimum-Risk Training on Translation Forests. EMNLP.

- Sep 8 (Travis Wolfe)
- Liang Huang (2008). Advanced Dynamic Programming in Semiring and Hypergraph Frameworks. COLING tutorial notes.

## Spring 2016

### Interpretable ML

- Apr 28
- Anoop Korattikara, Vivek Rathod, Kevin Murphy, Max Welling (2015). Bayesian Dark Knowledge. Submitted to NIPS.

- Apr 21
- Marco Tulio Ribeiro, Sameer Singh and Carlos Guestrin. (2016). Why Should I Trust You?” Explaining the Predictions of Any Classifier. CHI Workshop on Human-Centred Machine Learning (HCML).
*Optional background reading: Bayesian Learning via Stochastic Gradient Langevin Dynamics (ICML 2011).*

- Apr 14
- Letham, Rudin, McCormick, and Madigan (2012). Interpretable classifiers using rules and Bayesian analysis: Building a better stroke prediction model.

### Open-Domain Information Extraction

*Nanyun will organize this unit.*

- Apr 7 (Nanyun Peng)
- Jayant Krishnamurthy and Tom M Mitchell (2015). Learning a Compositional Semantics for Freebase with an Open Predicate Vocabulary. TACL.

- Mar 31 (Dingquan Wang)
- Sebastian Riedel, Limin Yao, Benjamin M. Marlin and Andrew McCallum (2013). Relation Extraction with Matrix Factorization and Universal Schemas. NAACL.

- Mar 24 (Nanyun Peng)
- T. Mitchell, W. Cohen, E. Hruschka, P. Talukdar, J. Betteridge, A. Carlson, B. Dalvi, M. Gardner, B. Kisiel, J. Krishnamurthy, N. Lao, K. Mazaitis, T. Mohamed, N. Nakashole, E. Platanios, A. Ritter, M. Samadi, B. Settles, R. Wang, D. Wijaya, A. Gupta, X. Chen, A. Saparov, M. Greaves, J. Welling (2015). Never-Ending Language Learning. AAAI.

### Reinforcement learning

*Keisuke and Tim will organize this unit.*

- Mar 10 (Keisuke Sakaguchi, Tim Vieira)
- Sergey Levine and Vladlen Koltun (2013). Guided Policy Search. ICML.

- Mar 3 (Nick Andrews)
- David Silver, Guy Lever, Nicolas Heess, Thomas Degris, Daan Wierstra, and Martin Riedmiller (2014). Deterministic Policy Gradient Algorithms. ICML.

- Feb 11, 18, 25 (Tim Vieira, Travis Wolfe)
- Léon Bottou, Jonas Peters, Joaquin Quiñonero-Candela, Denis X. Charles, D. Max Chickering, Elon Portugaly, Dipankar Ray, Patrice Simard and Ed Snelson (2013). Counterfactual Reasoning and Learning Systems. arxiv. slides

- Feb 4 (Keisuke Sakaguchi)
- Merwan Barlier, Julien Perolat, Romain Laroche, and Olivier Pietquin (2015). Human-Machine Dialogue as a Stochastic Game. SIGDIAL. slides
*Optional background:*Verena Rieser and Oliver Lemon (2011). Reinforcement Learning. In Reinforcement Learning for Adaptive Dialogue Systems, chapter 3.

## Fall 2015

### Tensor Decomp

- December 17
- NIPS debriefing session.

- December 3 (Pushpendre Rastogi)
- Schein et al. (2015). Bayesian Poisson Tensor Factorization for Inferring Multilateral Relations from Sparse Dyadic Event Counts. International Conference on Knowledge Discovery and Data Mining (KDD). blog post

- November 19 (Satya Prateek)
- Singh et al. (2015). Towards Combined Matrix and Tensor Factorization for Universal Schema Relation Extraction NAACL.

- November 12 (Pushpendre Rastogi)
- Tao Lei et al (2014). Low Rank Tensors For Scoring Dependency Structures. ACL (Best Paper).

### Abstract Meaning Representation (AMR)

- Nov 5 (Darcey Riley)
- Frank Drewes, Hans-Jorg Kreowski, and Annegret Habel (1997). Hyperedge Replacement Graph Grammars. In
*Handbook of Graph Grammars and Computing by Graph Transformation*, pp. 95-162.

- Oct 29 (Darcey Riley)
- Jones, Bevan, Jacob Andreas, Daniel Bauer, Karl Moritz Hermann, and Kevin Knight (2012). Semantics-Based Machine Translation with Hyperedge Replacement Grammars. Proc. COLING.

- Oct 22 (Darcey Riley)
- Banarescu et al. (2013). Abstract Meaning Representation for Sembanking. Proc. Linguistic Annotation Workshop.

### Deep + Probabilistic / Deep + Attention

- Oct 15 (Kevin Duh)
- Deep learning tutorial talk.

- October 8 (Chu-Cheng Lin)
- Andriy Mnih and Karol Gregor (2014). Neural Variational Inference and Learning in Belief Networks. ICML.

### Adaptive Inference

- October 1 (Tim Vieira)
- S. M. Ali Eslami, Daniel Tarlow, Pushmeet Kohli, and John Winn (2014). Just-In-Time Learning for Fast and Flexible Inference. NIPS. [http://arkitus.com/files/nips-14-eslami-just-in-time-supplementary.zip supplementary material, poster

- September 24
- EMNLP debriefing session.

- September 17 (Pushpendre Rastogi)
- David Weiss and Ben Taskar (2013). Learning Adaptive Value of Information for Structured Prediction. NIPS.

- September 10 (Travis Wolfe)
- Jacob Steinhardt and Percy Liang (2015). Reified Context Models.

- September 3 (Tim Vieira and Adam Teichert)
- Shi, Tianlin, Jacob Steinhardt, and Percy Liang (2015). Learning Where to Sample in Structured Prediction. Proceedings of the Eighteenth International Conference on Artificial Intelligence and Statistics.

## Spring 2015

*Thursdays 12-1:15pm, Hackerman 306.*

### Extreme Learning Machine & Computational Learning Theory (w/ practical applications)

- Apr 23 (Mozhi Zhang)
- Maclaurin et al. (2015) Gradient-based Hyperparameter Optimization through Reversible Learning. arXiv.

- Apr 16 (Tim Vieira)
- Ross et al. (2011) A Reduction of Imitation Learning and Structured Prediction to No-Regret Online Learning. AISTATS.

- Apr 9 (Dingquan Wang)
- Long et al. (2010) Restricted Boltzmann Machines are Hard to Approximately Evaluate or Simulate. ICML.

- Apr 2 (Tongfei Chen)
- Blum et al. (1999) Beating the Hold-Out: Bounds for K-fold and Progressive Cross-Validation. COLT.

- Mar 26 (Satya Prateek)
- Yosinski et al. (2014) How transferable are features in deep neural networks? arXiv.

- Mar 12 (Travis Wolfe)
- Huang et al. (2006) Extreme Learning Machine: Theory and Applications. Neurocomputing.

### Transition-based parsing

- Feb 19 (Mo Yu)
- Huang et al. (2012) Structured Perceptron with Inexact Search. NAACL.

- Feb 12 (Keisuke Sakaguchi)
- Sartorio et al. (2013) A Transition-Based Dependency Parser Using a Dynamic Parsing Strategy. ACL.

- Feb 5 (Travis Wolfe)
- Yamada and Matsumoto (2003) Statistical Dependency Analysis With Support Vector Machines. IWPT.

## Fall 2014

*Thursdays 12-1:15pm, Hackerman 306.*

### Scientific practice

- Dec 4 (Michael Paul) - Open science and publishing models
- Jason Priem (2013). Beyond the paper. Nature.
- Timothy Gowers and Michael Nielsen (2009). Massively collaborative mathematics. Nature.
- Yann LeCun (2011?). A new publishing model in computer science. Blog post.
- Donald Geman (2007). Ten reasons why conference papers should be abolished. Manuscript.
- Eric Price (2014). The NIPS experiment. Blog post.
- Bert Huang (2014). On the NIPS experiment and review process. Blog post.

- Nov 20 (Dingquan Wang)
- Eisenstein (2013) What to do about bad language on the internet. NAACL.

- Nov 6 (Matt Gormley)
- Clark et al. (2011) Better Hypothesis Testing for Statistical Machine Translation: Controlling for Optimizer Instability. ACL.
- Søgaard et al. (2014) What's a p-value in NLP?. CoNLL.

### Probabilistic semantics

- Oct 30 (Elan Hourticolon-Retzler)
- Tom Kwiatkowski, Eunsol Choi, Yoav Artzi, Luke Zettlemoyer (2013). Scaling Semantic Parsers with On-the-fly Ontology Matching. EMNLP.

- Oct 23 (Violet Nanyun Peng)
- Jonathan Berant, Percy Liang, (2014). Semantic Parsing via Paraphrasing. ACL.

- Oct 16 (Darcey Riley)
- Noah D. Goodman and Daniel Lassiter. Probabilistic Semantics and Pragmatics: Uncertainty in Language and Thought. Chapter for
*Handbook of Semantics*.

### Probabilistic programming

- Oct 9 (Adam Teichert)
- Examples section of Noah Goodman and Andreas Stuhlmüller (2014). The Design and Implementation of Probabilistic Programming Languages. Electronic book at http://dippl.org.

- Oct 2 (Travis Wolfe)
- Chapters 4,5,6 of Noah Goodman and Andreas Stuhlmüller (2014). The Design and Implementation of Probabilistic Programming Languages. Electronic book at http://dippl.org.

- Sep 25 (Pushpendre Rastogi)
- Chapters 2,3 of Noah Goodman and Andreas Stuhlmüller (2014). The Design and Implementation of Probabilistic Programming Languages. Electronic book at http://dippl.org.

### Beyond MCMC

- Sep 18 (Chandler May)
- Aaron Li, Amr Ahmed, Sujith Ravi, and Alexander J Smola (2014). Reducing the Sampling Complexity of Topic Models. KDD.
*Background: alias sampling*

- Sep 11 (Frank Ferraro)
- Luke Bornn, Yutian Chen, Nando de Freitas, Mareija Eskelin, Jing Fang, and Max Welling (2013). Herded Gibbs Sampling. ICLR.

- Sep 4 (Nicholas Andrews)
- Anoop Korattikara, Yutian Chen, and Max Welling (2014). Austerity in MCMC Land: Cutting the Metropolis-Hastings Budget ICML.

## Summer 2014

- Aug 14 (Adam Teichert)
- Joseph Gonzalez, Yucheng Low, Arthur Gretton, and Carlos Guestrin (2011). Parallel gibbs sampling: From colored fields to thin junction trees. AISTATS.

- July 24 (Tim Vieira)
- Alexandre Bouchard-Côté, Slav Petrov, and Dan Klein (2009). Randomized Pruning: Efficiently Calculating Expectations in Large Dynamic Programs. NIPS.

- July 24 (Matt Gormley)
- Michael U. Gutmann and Aapo Hyvärinen (2010). A new estimation principle for unnormalized statistical models. AISTATS.

- July 17 (Juneki Hong)
- TBA

- May 15 (Tim Vieira)
- TBA

- May 8 (Travis Wolfe)
- Percy Liang, Hal Daume, and Dan Klein (2008). Structure Compilation: Trading Structure for Features. ICML.

## Spring 2014

### Recent papers

- May 1 (Michael Paul)
- Thang Nguyen, Yuening Hu, and Jordan Boyd-Graber (2014). Anchors Regularized: Adding Robustness and Extensibility to Scalable Topic-Modeling Algorithms. ACL.

- Apr 24 (Adam Teichert)
- Dani Yogatama and Noah A. Smith (2014). Linguistic Structured Sparsity in Text Categorization. ACL.

### Semantic parsing

- Apr 17 (Juneki Hong)
- Dipanjan Das, Andre F. T. Martins, and Noah Smith (2012). An Exact Dual Decomposition Algorithm for Shallow Semantic Parsing with Constraints. *SEM. slides

- Apr 10 (Keisuke Sakaguchi & Yiran Zhang)
- Yoav Artzi and Luke Zettlemoyer (2013). Weakly Supervised Learning of Semantic Parsers for Mapping Instructions to Actions. TACL.

- Apr 3 (Xuchen Yao)
- Percy Liang, Michael I. Jordan, and Dan Klein (2011). Learning dependency-based compositional semantics.. ACL.

### Clever MT algorithms

- Mar 27 (Matt Gormley)
- Michel Galley, Chris Quirk, Colin Cherry, and Kristina Toutanova (2013). Regularized Minimum Error Rate Training. EMNLP.

- Mar 13 (Dan Deutsch)
- Adam Pauls and Dan Klein (2009). K-Best A* Parsing. ACL.

- Mar 6 (Nanyun Peng)
- Andrei Simion, Michael Collins, and Clifford Stein (2013). A Convex Alternative to IBM Model 2. EMNLP.

### Online inference

- Feb 27 (Nicholas Andrews)
- Michael Bryant and Erik B. Sudderth (2012). Truly Nonparametric Online Variational Inference for Hierarchical Dirichlet Processes. NIPS. Nick's slides

- Feb 13 (Frank Ferraro), Feb 20 (Ryan Cotterell)
- Matthew D. Hoffman, David M. Blei, Chong Wang, and John Paisley (2013). Stochastic variational inference. JMLR.

- Feb 6 (Ryan Cotterell)
- Percy Liang and Dan Klein (2009). Online EM for unsupervised models. NAACL. slides

## Fall 2013

### Recent Papers

- Dec 12
- NIPS debriefing.

- Dec 5 (Xuchen Yao)
- Jonathan Berant, Andrew Chou, Roy Frostig, and Percy Liang (2013). Semantic parsing on Freebase from question-answer pairs. EMNLP. supplement
*See also:*Tom Kwiatkowski, Eunsol Choi, Yoav Artzi, and Luke Zettlemoyer (2013). Scaling Semantic Parsers with On-the-Fly Ontology Matching. EMNLP.

- Nov 21 (Adam Teichert)
- Alexander M. Rush, Yin-Wen Chang, and Michael Collins (2013). Optimal Beam Search for Machine Translation. EMNLP.

- Nov 14 (Frank Ferraro)
- Yi Yang and Jacob Eisenstein (2013). A Log-Linear Model for Unsupervised Text Normalization. EMNLP.

### ML for Annotation / Active Learning

- Nov 7 (Michael Paul)
- Dan Garrette and Jason Baldridge (2013). Learning a Part-of-Speech Tagger from Two Hours of Annotation. NAACL.

- Oct 31 (Ryan Cotterell)
- Burr Settles (2012). Active Learning, chapters 3-5. Synthesis Lectures on Artificial Intelligence and Machine Learning.

- Oct 24
- EMNLP debriefing.

- Oct 17 (Tim Vieira)
- Burr Settles (2012). Active Learning, chapters 1-3. Synthesis Lectures on Artificial Intelligence and Machine Learning.

### Informal Domains

- Oct 10 (Naomi Saphra)
- Jacob Eisenstein (2012). Phonological Factors in Social Media Writing. Proceedings of NAACL Workshop on Language Analysis in Social Media.

- Oct 3 (Juneki Hong)
- Alan Ritter, Sam Clark, Mausam, and Oren Etzioni (2011). Named Entity Recognition in Tweets: An Experimental Study. EMNLP. slides

### Deep Learning for NLP

- Sep 26 (Nick Andrews)
- Richard Socher and Christopher Manning (2013). Deep Learning for NLP (without Magic). Tutorial at NAACL, continued.

- Sep 19 (Matt Gormley)
- Richard Socher and Christopher Manning (2013). Deep Learning for NLP (without Magic). Tutorial at NAACL.

- Sep 12 (Travis Wolfe)
- Ronan Collobert and Jason Weston (2008). A Uniﬁed Architecture for Natural Language Processing: Deep Neural Networks with Multitask Learning. ICML.

## Summer 2013

- Aug 15
- ACL debriefing.

- Jun 20
- NAACL debriefing.

- Jun 13 (Nicholas Andrews)
- Marta Recasens, Marie-Catherine de Marneffe, and Christopher Potts (2013). The Life and Death of Discourse Entities: Identifying Singleton Mentions. NAACL (short paper).

## Spring 2013

*Thursdays 12-1:15pm in Hackerman 306.*

### Recent NLP papers

- May 2 (Gaurav Kumar)
- Oscar Tackstrom, Dipanjan Das, Slav Petrov, Ryan McDonald, and Joakim Nivre (2013). Token and Type Constraints for Cross-Lingual Part-of-Speech Tagging. TACL.

- Apr 25 (Nicholas Andrews)
- J Gillenwater, A Kulesza, and B Taskar (2012). Discovering Diverse and Salient Threads in Document Collections. EMNLP.

- Apr 18 (Michael Paul)
- R Socher, M Ganjoo, H Sridhar, O Bastani, CD Manning, and AY Ng (2013). Zero-Shot Learning Through Cross-Modal Transfer. arXiv, March.

### Inference for NLP

- Apr 11 (Matt Gormley)
- J. Domke (2011). Dual decomposition for marginal inference. AAAI.

- Apr 4 (Tim Vieira)
- J. Paisley, D. Blei, and M. Jordan (2012). Variational Bayesian Inference with Stochastic Search. ICML.

- Mar 28 (Adam Teichert)
- D. Weiss, B. Sapp, and B. Taskar (2012). Structured Prediction Cascades. arXiv, August.

### Semantics in NLP

- Mar 14 (Violet Nanyun Peng)
- Dipanjan Das and Noah A. Smith (2011). Semi-Supervised Frame-Semantic Parsing for Unknown Predicates. ACL.

- Mar 7 (Frank Ferraro)
- David Chen (2012). Fast Online Lexicon Learning for Grounded Language Acquisition. ACL.

- Feb 28 (Darcey Riley)
- Cynthia Matuszek, Nicholas FitzGerald, Luke Zettlemoyer, Liefeng Bo, and Dieter Fox (2012). A Joint Model of Language and Perception for Grounded Attribute Learning. ICML.

### Alignment

- Feb 21 (Henry Pao)
- Chris Dyer, Jonathan Clark, Alon Lavie, and Noah A. Smith (2011). Unsupervised Word Alignment with Arbitrary Features. ACL.

- Feb 14 (Travis Wolfe)
- Adam Pauls, Dan Klein, David Chiang, and Kevin Knight (2010). Unsupervised Syntactic Alignment with Inversion Transduction Grammars. NAACL.

- Feb 7 (Xuchen Yao)
- Mohit Bansal, Chris Quirk, and Robert C. Moore (2011). Gappy Phrasal Alignment By Agreement. ACL.

## Fall 2012

### Good recent ML papers

- Jan 24 (Nick Andrews)
- Tony Jebara and Anna Choromanska (2012). Majorization for CRFs and Latent Likelihoods. NIPS.

- Jan 17 (Adam Teichert)
- Po-Ling Loh and Martin Wainwright (2012). Structure estimation for discrete graphical models: Generalized covariance matrices and their inverses. NIPS.

- Jan 10 (Tim Vieira)
- Thomas Furmston and David Barber (2012). A Unifying Perspective of Parametric Policy Search Methods for Markov Decision Processes. NIPS.

- Jan 3 (Jason Eisner)
- Robert Gens and Pedro Domingos (2012). Discriminative Learning of Sum-Product Networks. NIPS. Slides.

### Good recent NLP papers

- Dec 13 (Nathaniel Filardo)
- Sebastian Riedel, David Smith, and Andrew McCallum (2012). Parse, Price and Cut: Delayed Column and Row Generation for Graph Based Parsers. ACL. background

- Dec 6 (Gaurav Kumar)
- Liang Huang, Suphan Fayong, and Yang Guo (2012). Structured Perceptron with Inexact Search. NAACL.

- Nov 29 (Frank Ferraro)
- Jason Naradowsky, Sebastian Riedel, and David Smith (2012). Improving NLP through Marginalization of Hidden Syntactic Structure. EMNLP.

- Nov 15 (Henry Pao)
- Richard Socher, Brody Huval, Christopher D. Manning, and Andrew Y. Ng (2012). Semantic compositionality through recursive matrix-vector spaces. ACL.

### Human sentence processing

- Nov 8 (Olivia Buzek)
- Steven T. Piantadosi, Harry Tily, and Edward Gibson (2011). The communicative function of ambiguity in language. Cognition.

- Nov 1 (Aric Velbel)
- Roger Levy and T. Florian Jaeger (2007). Speakers optimize information density through syntactic reduction. Proceedings of the Twentieth Annual Conference on Neural Information Processing Systems.

- Oct 25 (Keith Levin)
- Bock, K., & Levelt, W. J. M. (1994). Language production: Grammatical encoding. In M.A. Gernsbacher (Ed.), Handbook of Psycholinguistics (pp. 945-984). London: Academic Press.

### Streaming/online algorithms in NLP

- Oct 18 (Travis Wolfe)
- Martins, Gimpel, Smith, Xing, Figueiredo, and Aguiar (2010). Aggressive Online Learning of Structured Classiﬁers. Tech report.
- (also seen online as "Learning Structured Classiﬁers with Dual Coordinate Ascent")

- Oct 11 (Violet (Nanyun) Peng)
- Graham Cormode (2011). Sketch Techniques for Approximate Query Processing. Foundations and Trends in Database.

- Oct 4 (Matt Gormley)
- Benjamin Van Durme (2012). Streaming Analysis of Discourse Participants. EMNLP.

### Events/Narratives in text

- Sep 27 (Xuchen Yao)
- Quang Do, Wei Lu, Dan Roth (2012). Joint Inference for Event Timeline Construction. EMNLP.

- Sep 20 (Adam Teichert)
- Roi Reichart and Regina Barzilay (2012). Multi Event Extraction Guided by Global Constraints. NAACL.

- Sep 13 (Michael Paul)
- Nathanael Chambers and Dan Jurafsky (2009). Unsupervised Learning of Narrative Schemas and their Participants. ACL.

## Summer 2012

### Summer conference papers

- Aug 30 (Darcey Riley)
- Sindhu Raghavan, Raymond Mooney, and Hyeonseo Ku (2012). Learning to "Read Between the Lines" using Bayesian Logic Programs. ACL.

- Aug 23 (Wes Filardo)
- Zhiheng Huang et al. (2012). Iterative Viterbi A* Algorithm for K-Best Sequential Decoding. ACL.

- Aug 16 (Travis Wolfe)
- Alex Kulesza and Ben Taskar (2011). Learning Determinantal Point Processes. UAI.

- Aug 10 (Nick Andrews)
- David Hall and Dan Klein (2012). Training Factored PCFGs with Expectation Propagation. EMNLP.

- Aug 3 (Michael Paul)
- Quang Do; Wei Lu; Dan Roth (2012). Joint Inference for Event Timeline Construction. EMNLP.

- Jul 5 (Tim Vieira)
- David Burkett and Dan Klein (2012). Fast Inference in Phrase Extraction Models with Belief Propagation. NAACL. Slides.

- Jun 29 (Adam Teichert)
- Oscar Täckström, Ryan McDonald, and Jakob Uszkoreit (2012). Cross-lingual Word Clusters for Direct Transfer of Linguistic Structure. NAACL.

## Spring 2012

### Spectral learning

- May 3 (Xuchen Yao)
- Paramveer Dhillon, Dean Foster and Lyle Ungar (2011). Multi-View Learning of Word Embeddings via CCA. NIPS 24 , Granada, Spain, Dec. 2011

- Apr 26 (Matt Gormley)
- Franco M. Luque, Ariadna Quattoni, Borja Balle, and Xavier Carreras (2012). Spectral Learning for Non-Deterministic Dependency Parsing. EACL 2012. Best paper award.

- Apr 19 (Michael Paul)
- Daniel Hsu, Sham M. Kakade, and Tong Zhang (2009). A Spectral Algorithm for Learning Hidden Markov Models. Twenty-Second Annual Conference on Learning Theory (COLT).

### Reinforcement learning

- Apr 12 (Travis Wolfe)
- Wilson, Fern, Ray, and Tadepalli (2007). Multi-Task Reinforcement Learning: A Hierarchical Bayesian Approach. ICML.

- Apr 5 (Nathaniel Filardo)
- Wingate, David et al. (2011). Bayesian Policy Search with Policy Priors. International Joint Conference on Artificial Intelligence (IJCAI).

- Mar 29 (Jay Feldman)
- Gergely Neu and Csaba Szepesvári (2009). Training parsers by inverse reinforcement learning, Machine Learning Volume 77, Issue 2. Published online by Springer Netherlands.

### Non-convex optimization

- Mar 15 (Frank Ferraro)

Main reading: Robert Michael Lewis, Virginia Torczon, and Michael W. Trosset (2000). Direct search methods: then and now. Journal of Computational and Applied Mathematics, Volume 124, Issues 1-2, December, pp. 191-207.

Optional/supplemental reading: Tamara G. Kolda, Robert Michael Lewis, and Virginia Torczon (2003). Optimization by direct search: new perspectives on some classical and modern methods. SIAM Review, Vol. 45, Issue 3, pages 385-482.

- Mar 8 (Tim Vieira)

Eric Brochu, Vlad M. Cora and Nando de Freitas (2009). A Tutorial on Bayesian Optimization of Expensive Cost Functions, with Application to Active User Modeling and Hierarchical Reinforcement Learning. **pages 1-23.**

- Mar 1 (Nicholas Andrews)
- Main reading (Part 1): M. Ebden (2008). Gaussian Processes for Regression: A Quick Introduction. TR.
- Extra reading (Chapter 2): Carl Edward Rasmussen and Christopher K. I. Williams (2006). Gaussian Processes for Machine Learning. MIT Press.
- Extra extra reading (Chapter 45): David J.C. MacKay (2003). Information Theory, Inference, and Learning Algorithms. Cambridge University Press.

### Unsupervised/semisupervised learning of linguistic structure

- Feb 23 (Olivia Buzek)
- Sharon Goldwater, Thomas L. Griffiths, Mark Johnson (2009). A Bayesian framework for word segmentation: Exploring the effects of context. Cognition 112 (1), pp. 21--54.

- Feb 16 (Adam Teichert)
- Tahira Naseem, Harr Chen, Regina Barzilay, and Mark Johnson (2010). Using Universal Linguistic Knowledge to Guide Grammar Induction, EMNLP.

- Feb 9 (Jason Smith)
- Joao V. Graca, Kuzman Ganchev, and Ben Taskar (2007). Expectation Maximization and Posterior Constraints. In Advances in Neural Information Processing Systems, Vol. 20.

*A longer treatment is Ganchev et al. (2010), Posterior Regularization for Structured Latent Variable Models, JMLR.**An application to unsupervised dependency parsing is Gillenwater et al. (2011), Posterior Sparsity in Unsupervised Dependency Parsing, JMLR.*

## Fall 2011

### Knowledge representation and reasoning

- Dec 1 (Meher Vijay Yeleti)
- D. Koller, A. Levy, and A. Pfeffer (1997). P-Classic: A Tractable Probabilistic Description Logic. AAAI.

- Nov 17 (Ves Stoyanov)
- Franz Baader and Werner Nutt (2002). Basic Description Logics. In the Description Logic Handbook.

- Nov 10 (Nick Andrews)
- Nir Friedman et al. (1999). Learning Probabilistic Relational Models. IJCAI.

- Nov 3 (Matt Gormley)
- Hector J. Levesque (1986). Knowledge Representation and Reasoning. Annual Review of Computer Science, Vol. 1: 255-287.

### Music modeling

- Oct 27 (Adam Teichert)
- Jean-François Paiement, Yves Grandvalet & Samy Bengio (2009). Predictive models for music. Connection Science 21(2-3):253-272.

- Oct 20 (Nathaniel Filardo)
- David Temperley (2010). Modeling Common-Practice Rhythm. Music Perception 27(5):355-376.

- Oct 13 (Michael Paul)
- Gerhard Nierhaus (2008). "Genetic Algorithms in Algorithmic Composition". Algorithmic Composition: Paradigms of Automated Music Generation, Chapter 7.4, pp. 157-186.

- Oct 6 (Frank Ferraro)
- Fred Lerdahl and Ray Jackendoff (1983). "An Overview of Hierarchical Structure in Music."
*Music Perception: An Interdisciplinary Journal*. Vol. 1, No. 2, Hierarchical Structure in Music (Winter 1983/1984), pp. 229-252.

- Resources

- http://www.musictheory.net/lessons provides a sequence of interactive music theory lessons.
- A virtual keyboard: http://www.bgfl.org/bgfl/custom/resources_ftp/client_ftp/ks2/music/piano/.

### ML in information retrieval

- Sep 29 (Olivia Buzek)
- Shuang-Hong Yang, Bo Long, Alexander J. Smola, Hongyuan Zha, and Zhaohui Zheng (2011). Collaborative competitive filtering: learning recommender using context of user choice. SIGIR.

- Sep 22 (Tim Vieira)
- Brian McFee and Gert Lanckriet (2010). Metric Learning to Rank. ICML.

- Sep 15 (Adam Teichert)
- P. Carpena, P. Bernaola-Galvan, M. Hackenberg, A.V. Coronado, and J. L. Oliver (2009). Level statistics of words: Finding keywords in literary texts and symbolic sequences. Physical Review.
- Rada Mihalcea, Courtney Corley, and Carlo Strapparava (2006). Corpus-based and Knowledge-based Measures of Text Semantic Similarity. AAAI.

- Sep 8 (Travis Wolfe)
- Dafna Shahaf, Carlos Guestrin (2010). Connecting the dots between news articles. Proc. of KDD.

## Summer 2011

### Summer conference papers

- Aug 16 (Matt Gormley)
- Taylor Berg-Kirkpatrick, Dan Klein (2011). Simple Effective Decipherment via Combinatorial Optimization. Proc. of EMNLP.

- Jul 19 (Matt Gormley)
- Alexander M. Rush and Michael Collins (2011). Exact Decoding of Syntactic Translation Models through Lagrangian Relaxation. Proc. of ACL. Slides.

- Jul 12 (Wes Filardo)
- Daniel Gildea (2010). Optimal Parsing Strategies for Linear Context-Free Rewriting Systems. Proc. of NAACL. Slides.

- Jun 14 (Xiaoxu Kang)
- Limin Yao, Sebastian Riedel, and Andrew McCallum (2010). Collective Cross-Document Relation Extraction Without Labelled Data. Proc. of EMNLP.

- Jun 7 (Nicholas Andrews)
- Harr Chen, Edward Benson, Tahira Naseem, and Regina Barzilay (2011). In-Domain Relation Discovery with Meta-Constraints via Posterior Regularization. Proc. of ACL.

## Spring 2011

### Combinatorial optimization

- May 5 (Wes Filardo)
- Daniel J. Lehmann (1977). Algebraic structures for transitive closure.
*Theoretical Computer Science*4(1):59-76.

- Apr 28 (Jason Smith)
- R. McDonald, F. Pereira, K. Ribarov, and J. Hajic (2005). Non-projective dependency parsing using spanning tree algorithms. In Proc. HLT/EMNLP, pages 523–530

- Apr 21 (Byung Gyu Ahn)
- David Sontag, Amir Globerson, Tommi Jaakkola (2010). Introduction to Dual Decomposition for Inference. To appear in Optimization for Machine Learning, editors S. Sra, S. Nowozin, and S. J. Wright: MIT Press, 2010.

- Apr 14 (Adam Teichert)
- Jack Edmunds (1965). Paths, Trees, and Flowers. Canadian Journal of Mathematics 17: 449--467.

### Game-theoretic approaches to discourse pragmatics and to language evolution

- Apr 7 (Michael Paul)
- Paul Vogt (2005). The emergence of compositional structures in perceptually grounded language games. Artificial Intelligence 167(1-2): 206-242.

- Mar 31 (Rachael Richardson)
- David Golland, Percy Liang, Dan Klein (2010). A Game-Theoretic Approach to Generating Spatial Descriptions. EMNLP 2010.

- Mar 17 (Xuchen Yao)
- Gerhard Jäger (2008). Game theory in semantics and pragmatics. Unpublished manuscript.
*Note: This looks quite different from the 2011 manuscript that has the same title and author.*

- March 10 (Luke Orland)
- Gerhard Jäger (2008). Applications of Game Theory in Linguistics

### Variational inference

- March 3 (Nicholas Andrews)
- Percy Liang, Slav Petrov, Michael I. Jordan, Dan Klein (2007). The infinite PCFG using hierarchical Dirichlet processes. EMNLP.

- Feb 24 (Nathaniel Filardo)
- Matthew Beal (2003). Variational Bayesian Hidden Markov Models. Appears as Chapter 3 of
*Variational Algorithms for Approximate Bayesian Inference*, Ph.D. Thesis, Gatsby Computational Neuroscience Unit, University College London.

- David MacKay (1997). Ensemble Learning for Hidden Markov Models. Unpublished technical report, Cavendish Laboratory, University of Cambridge.
- Slides from Mark Johnson (2007). Why doesn't EM find good HMM POS-taggers?. EMNLP.

- Feb 17 (Adam Teichert)
- David M. Blei, Andrew Y. Ng, and Michael I. Jordan (2003). Latent Dirichlet Allocation. Journal of Machine Learning.

- Feb 10 (Matt Gormley)
- Michael I. Jordan, Zoubin Ghahramani, Tommi S. Jaakkola, and Lawrence K. Saul (1999). An introduction to variational methods for graphical models. Machine Learning.
*To get an intuition first, start with Jason's high-level explanation of variational inference. For another reference, try the ACL 2007 tutorial slides by Percy Liang and Dan Klein.*

## Fall 2010

### Unsupervised discriminative learning

- Dec 9 (Adam Teichert)
- Continue with last week's reading: chapter 3.

- Dec 2 (Wes Filardo)
- Continue with last week's reading: finish chapter 2.

- Nov 18 (Jason Smith)
- Csaba Szepesvári, Algorithms for Reinforcement Learning. This week we'll read the preface, chapter 1, and the first section of chapter 2. If you're trying to access this outside of JHU, try this link.

- Nov 11 (Ves Stoyanov)
- Yves Grandvalet and Yoshua Bengio, Entropy Regularization, in: Semi-Supervised Learning, pages 151--168, MIT Press, 2006

- Nov 4 (Michael Paul)
- Baoxun Wang, Xiaolong Wang, Chengjie Sun, Bingquan Liu, Lin Sun (2010). Modeling Semantic Relevance for Question-Answer Pairs in Web Social Communities.

- Oct 28 (Adam Teichert)
- Noah Smith and Jason Eisner (2005). Guiding Unsupervised Grammar Induction Using Contrastive Estimation.

### Semantic parsing

- Oct 21 (Svitlana Volkova)
- Mihai Surdeanu, Richard Johansson, Adam Meyers, Llu ́ıs Ma`rquez, Joakim Nivre (2008). The CoNLL-2008 shared task on joint parsing of syntactic and semantic dependencies. Slides.

- Oct 14 (Xuchen Yao)
- Wei Lu , Hwee Tou Ng , Wee Sun Lee , Luke S. Zettlemoyer (2008). A Generative Model for Parsing Natural Language to Meaning. EMNLP. Slides.

- Oct 7 (Matt Gormley)
- Dipanjan Das, Nathan Schneider, Desai Chen and Noah A. Smith (2010). Probabilistic Frame-Semantic Parsing. NAACL.

- Sep 30 (Nicholas Andrews)
- Luke S. Zettlemoyer and Michael Collins (2009). Learning Context-Dependent Mappings from Sentences to Logical Form. ACL.

### Graph-based methods and random walks

- Sep 23 (Adam Teichert)
- Jie Cai and Michael Strube (2010). End-to-End Coreference Resolution via Hypergraph Partitioning. ACL.

- Sep 16 (Delip Rao)
- Goldenberg, A., Zheng, A. X., Fienberg, S. E., and Airoldi, E. M. (2010). A Survey of Statistical Network Models. Foundation and Trends in Machine Learning 2, 2 (Feb.), 129-233.

- Sep 9 (Svitlana Volkova)
- Einat Minkov and William W. Cohen (2008). Learning Graph Walk Based Similarity Measures for Parsed Text. EMNLP.

## Summer 2010

### Summer conference papers

- Aug 12 (Jason Smith)
- Alexander Clark (2010). Efficient, Correct, Unsupervised Learning for Context-Sensitive Languages. CoNLL.

- Aug 5 (Veselin Stoyanov)
- Hoifung Poon and Pedro Domingos (2010). Unsupervised Ontology Induction from Text. ACL.

- Jul 20
- General discussion of ACL 2010 papers.

- Jul 15 (Nicholas Andrews)
- Shay B. Cohen, David M. Blei and Noah A. Smith (2010). Variational Inference for Adaptor Grammars. NAACL.

- Jul 6 (Veselin Stoyanov)
- D. Chiang, J. Graehl, K. Knight, A. Pauls, and S. Ravi (2010). Bayesian Inference for Finite-State Transducers. NAACL.

- Jun 29 (Matt Gormley)
- Percy Liang, Michael I. Jordan, and Dan Klein (2010). Type-Based MCMC. NAACL. Slides.

- Jun 22 (Spence Green)
- David Burkett, John Blitzer, and Dan Klein (2010). Joint Parsing and Alignment with Weakly Synchronized Grammars. NAACL. Slides.

*Relevant background:*- David A. Smith and Jason Eisner (2009). Parser adaptation and projection with quasi-synchronous grammar features. EMNLP.
- David A. Smith and Jason Eisner (2008). Dependency parsing by belief propagation. EMNLP.
- David Burkett and Dan Klein (2008). Two Languages are Better than one (for Syntactic Parsing). EMNLP.

- Jun 17 (Ves Stoyanov)
- Aria Haghighi and Dan Klein (2010). Coreference Resolution in a Modular, Entity-Centered Model. NAACL.

- Jun 10
- General discussion of NAACL 2010 papers.

## Spring 2010

### Visual scene parsing

- May 6 (Rizwan Chaudhry)
- S. Fidler, M. Boben, A. Leonardis (2009). Learning Hierarchical Compositional Representations of Object Structure. In Sven J. Dickinson, Alés Leonardis, and Bernt Schiele (eds.),
*Object Categorization: Computer and Human Vision Perspectives*.

*See also the talk that Geoff Hinton gave here last week, Deep learning with multiplicative interactions.*

- April 22 (Zach Pezzementi) and April 29 (Balakrishnan V)
- Song-Chun Zhu and David Mumford (2006). A Stochastic Grammar of Images. Foundations and Trends in Computer Graphics and Vision, 2(4):259-362. Slides.
*Official final version is good for screen reading but wastes paper.*

- April 15 (Nick Andrews)
- Sven Dickinson (2009). The Evolution of Object Categorization and the Challenge of Image Abstraction. In Sven J. Dickinson, Alés Leonardis, and Bernt Schiele (eds.),
*Object Categorization: Computer and Human Vision Perspectives*.

- April 8 (Matt Gormley)
- André F. T. Martins, Noah A. Smith, and Eric P. Xing (2009). Concise Integer Linear Programming Formulations for Dependency Parsing. ACL-IJCNLP.

- April 1 (Adam Gerber)
- Aria Haghighi, John DeNero, and Dan Klein (2007). Approximate Factoring for A* Search. HTL-NAACL 2007. Slides.

- March 25 (Zhifei Li)
- Mark Hopkins and Greg Langmead (2009). Cube pruning as heuristic search. EMNLP 2009.

- March 11 (Jason Smith)
- Adam Pauls and Dan Klein (2009). K-Best A* Parsing. ACL. Slides.

- March 4 (Nathaniel Filardo)
- Pedro Felzenswalb and David McAllester (2007). The Generalized A* Architecture.
*Journal of Artificial Intelligence Research*. Slides from [1].

### Weakly supervised learning of semantics

*There's also a nice list of papers at the UT reading group on Connecting Language Acquisition with Machine Perception.*

- Feb 25 (Nick Andrews)
- Luke Zettlemoyer and Michael Collins (2005). Learning to Map Sentences to Logical Form: Structured Classification with Probabilistic Categorial Grammars. In Proceedings of the Twenty First Conference on Uncertainty in Artificial Intelligence (UAI-05).

~~Feb 11~~Feb 18 (Ves Stoyanov)- S.R.K. Branavan, Harr Chen, Luke S. Zettlemoyer, Regina Barzilay (2009). Reinforcement Learning for Mapping Instructions to Actions. ACL-IJCNLP.

- Feb 4 (Rachael Richardson)
- Percy Liang, Michael I. Jordan, and Dan Klein (2009). Learning Semantic Correspondences with Less Supervision. ACL-IJCNLP.

## Fall 2009

### Bayesian methods

- Jan 21 (Zhifei Li)
- Percy Liang, Slav Petrov, Michael I. Jordan, Dan Klein (2007). The infinite PCFG using hierarchical Dirichlet processes.. EMNLP 2007.

- Jan 14 (Jason Smith)
- Matthew J. Beal, Zoubin Ghahramani, and Carl Edward Rasmussen (2002). The Infinite Hidden Markov Model. NIPS.
*Also discussed in section 7 of last week's paper.*

- Jan 7 (Jason Eisner)
- Long lecture on the Dirichlet process (infinite) mixture model.
- Reading: Yee Whye Teh, Michael Jordan, Matthew Beal and David Blei (2005), Hierarchical Dirichlet Processes.
- There's also a stack of relevant slides from Jordan's 2005 NIPS tutorial.

- Dec 3 (Jason Smith)
- Sharon Goldwater and Thomas L. Griffiths (2007), A Fully Bayesian Approach to Unsupervised Part-of-Speech Tagging. ACL.
*This paper uses a Gibbs sampler. See also the following papers, which compare Gibbs sampling with Variational Bayes and other methods for the same problem:*- Mark Johnson (2007), Why doesn’t EM find good HMM POS-taggers?. EMNLP.
- Jianfeng Gao and Mark Johnson (2008), A comparison of Bayesian estimators for unsupervised Hidden Markov Model POS taggers. EMNLP.

- Nov 26 (Mechanical Turkey)
- Mary McGlohon (2007), Fried Chicken Bucket Processes. SIGBOVIK.

- Nov 19 (Jason Eisner)
- Lecture on Gibbs sampling and variational Bayes for LDA and its finite-state generalizations.

- Nov 12 (Jason Eisner)
- Yee Whye Teh (2009), Nonparametric Bayesian Models. Video tutorial at Machine Learning Summer School.

- Nov 5 (Zhifei Li)
- David M. Blei, Andrew Y. Ng, & Michael I. Jordan (2003). Latent Dirichlet Allocation. Journal of Machine Learning Research 3 (2003) 993-1022.

### Inference methods

- Oct 29 (Markus Dreyer)
- Koller & Friedman, Chapter 11, Optimization as Inference

- Oct 22 (Puyang Xu)
- Koller & Friedman, Chapter 12: Particle-Based Methods

- Oct 15 (Ariya Rastrow)
- Koller & Friedman, Chapters 3 & 4

- Oct 1 (Anoop Deoras), Oct 8 (Carolina Parada)
- MacKay (2003), Monte Carlo Methods and Efficient Monte Carlo Methods. Chapters 29-30 of Information Theory, Inference, and Learning Algorithms.

### Multilingual/ Cross-lingual learning

- Sep 24 (Omar F. Zaidan)
- David Burkett and Dan Klein, (2008). Two Languages are Better than One (for Syntactic Parsing). EMNLP, 2008.

- Sep 17 (Rachael Richardson)
- Alexander Fraser, Renjing Wang, and Hinrich Schütze (2009). Rich Bitext Projection Features for Parse Reranking. EACL 2009.

- Sep 10 (Delip Rao)
- Benjamin Snyder, Tahira Naseem, Jacob Eisenstein, and Regina Barzilay (2009). Adding More Languages Improves Unsupervised Multilingual Part-of-Speech Tagging: a Bayesian Non-Parametric Approach. NAACL 2009.

- Summary: There are several approaches to learning syntax in an unsupervised fashion but this paper belongs to the growing notion of exploiting multiple languages to reduce ambiguity in the learning task. The most important take-home message from the paper is, it is possible to consistently reduce the gap between supervised and unsupervised learning by progressively adding more languages to the mix. This is akin to the multi-view learning results in machine learning literature. An earlier work by the same authors (EMNLP'08) showed how by carefully selecting pairs of languages in multilingual learning one can achieve better accuracies. The current paper builds on that result and shows that it is not really necessary to hand-pick the bilingual pairs; robust performance is guaranteed by blindly adding more languages.
- Well, not so blindly. Adding more languages to the setup means estimating more parameters in the model. Without careful implementation, such a model can become intractable. Section 3 explains in detail about the generative setup and the inference procedure. Starting with Goldwater's monolingual HMM tagging like setup for each language, the HMMs are stitched together using alignment links and latent variables called "superlingual tags" leading to a product of experts model. The superlingual tags can be considered as tags that generate similar kind of syntactic entities in each of the languages. The inference procedure as with any non-trivial npbayes setup involves computing integrals that don't have a closed form solution. Monte Carlo sampling is a standard approach to solve such problems. Gibbs sampling is one such method. The details of the sampling process is in sections 3.5-3.7. This part is a bit technical and will be discussed either tomorrow and/or the sessions on non-parametric bayesian methods. There are other methods one could use, like variational methods and expectation propagation instead.

## Summer 2009

### Summer conference papers

- July 23 (Zhifei Li)
- Joris Mooij and Bert Kappen, (2008). Bounds on marginal probability distributions. NIPS, 2008.

- July 16 (Markus Dreyer)
- Fabien Cromierès, Sadao Kurohashi (2009). An Alignment Algorithm Using Belief Propagation and a Structure-Based Distortion Model. EACL 2009.

- June 25 (Markus Dreyer)
- Hoifung Poon, Colin Cherry, Kristina Toutanova (2009). Unsupervised Morphological Segmentation with Log-Linear Models. NAACL 2009.

- June 19 (Zhifei Li)
- David Chiang, Wei Wang and Kevin Knight, (2009). 11,001 new features for statistical machine translation. NAACL 2009.

## Spring 2009

### Information extraction (relevant to TAC)

- Apr 30 (Chuan Liu)
- Jun Wang (2009). Mean-Variance Analysis: A New Document Ranking Theory in Information Retrieval. European Conference on Information Retrieval.

- Apr 23 (Wes Filardo)
- Jun Zhu, Zaiqing Nie, Xiaojing Liu Bo Zhang, Ji-Rong Wen (2009). StatSnowball: a Statistical Approach to Extracting Entity Relationships. WWW 2009.

- Apr 16 (Carolina Parada)
- Julien Ah-Pine, Guillaume Jacquet (2009). Clique-Based Clustering for improving Named Entity Recognition systems. EACL 2009, 12th Conference of the European Chapter of the Association for Computational Linguistics. Athens, Greece, March 30 - April 3, 2009

- Apr 9 (Jason Smith)
- Marius Pasca (2009). Outclassing Wikipedia in Open-Domain Information Extraction: Weakly-Supervised Acquisition of Attributes over Conceptual Hierarchies. EACL 2009, 12th Conference of the European Chapter of the Association for Computational Linguistics. Athens, Greece, March 30 - April 3, 2009

### Domain adaptation across text genres

- Apr 2 (Arnab Ghoshal)
- Corinna Cortes, Mehryar Mohri, Michael Riley, Afshin Rostamizadeh. Sample Selection Bias Correction Theory. In Proceedings of The 19th International Conference on Algorithmic Learning Theory (ALT 2008).

- Mar 26 (Ariya Rastrow)
- Yishay M, Mehryar M, Afshin R (2008). Domain Adaptation with Multiple Sources. In Proceedings of Advances in Neural Information Processing Systems (NIPS)

*Optional Reading*John Blitzer, Koby Crammer, Alex Kulesza, Fernando Pereira, and Jenn Wortman. Learning Bounds for Domain Adaptation. Neural Information Processing Systems - NIPS 2007

- Mar 12 (Delip Rao)
- Schweikert G, Widmer C, Scholkopf B, Ratsch G (2008) An empirical analysis of domain adaptation algorithms for genomic sequence analysis. In Proceedings of Advances in Neural Information Processing Systems (NIPS)

*Optional Reading:*Marx Z, Rosenstein MT, Dietterich TG, Kaelbling LP (2008) Two algorithms for transfer learning. In: Inductive Transfer: 10 years later

- Mar 5 (Omar F. Zaidan)
- Su-In Lee, Vassil Chatalbashev, David Vickrey, and Daphne Koller (2007). Learning a Meta-Level Prior for Feature Relevance from Multiple Related Tasks. ICML 2007.

### Recent good papers

- Feb 26 (Zhifei Li)
- John DeNero, Alex Bouchard, and Dan Klein (2008). Sampling Alignment Structure under a Bayesian Translation Model. EMNLP 2008.

- Feb 19 (Jason Eisner)
- Impromptu lecture on Dirichlet distributions, Dirichlet processes, etc.

- Feb 12 (Markus Dreyer)
- Tom Minka (2005). Divergence measures and message passing. Microsoft Research Technical Report. Slides: pdf, ppt.

- Feb 5 (Delip Rao)
- David J. Hand (2006). Classifier Technology and The Illusion of Progress. Statistical Science.

## Fall 2008

### Programming languages for AI

- Dec 13-14
- NIPS workshop on probabilistic programming (see probabilistic-programming.org), which mentioned a number of other languages and libraries.

- Dec 4 (Omar F. Zaidan)
- Jeff Bilmes (~2002). The Graphical Models Toolkit (GMTK).
- The above link includes a draft of the documentation and a tutorial, as well as the binaries.

- Nov 20 (Wren Thornton)
- Avi Pfeffer (2006). IBAL Tutorial.
- Installed in
`masters*:~wren/local/bin`

(linux only, so not masters01 or masters02) and`clsp:~wren/local/bin`

. Add this directory to your`PATH`

. - See also other materials, including this paper: Avi Pfeffer (2007). The design and implementation of IBAL: A general-purpose probabilistic language. In Lise Getoor and Ben Taskar (eds.), Introduction to Statistical Relational Learning.

- Installed in

- Nov 13 (Nathaniel Filardo)
- Marc Sumner and Pedro Domingos (2007). The Alchemy Tutorial. Slides.
- System is installed in
`masters*:~nwf/public/alchemy`

. There is a`tutorial`

subdirectory. You should be able to follow along in the tutorial by running commands like

- System is installed in

~nwf/public/alchemy/bin/infer \ -i ~nwf/public/alchemy/tutorial/basics/uniform.mln \ -e ~nwf/public/alchemy/tutorial/empty.db \ -r uniform.results \ -q Heads

### Miscellaneous

- Oct 30, Nov 6
- Discussion of the EMNLP 2008 papers.

- Oct 23 (Damianos Karakos)
- I. Csiszar and G. Tusnady (1984). Information geometry and alternating minimization procedures. Statistics and Decisions, Suppl. Issue 1, pp. 205-237.
- The paper is not online, but there are online course notes from Sanjeev Khudanpur.

### Probabilistic relational models

- Oct 16 (Nathaniel Filardo)
- Pedro Domingos et al. (2008). Markov Logic. In L. De Raedt, P. Frasconi, K. Kersting and S. Muggleton (eds.), Probabilistic Inductive Logic Programming (pp. 92-117). New York: Springer.

- Oct 1 (Balakrishnan Varadarajan?)
- Nir Friedman, Lise Getoor, Daphne Koller, and Avi Pfeffer (1999). Learning Probabilistic Relational Models. In IJCAI.
*A longer book chapter version is linked from here, but the link is dead.*

- Sep 25 (Zhifei Li)
- David Smith and Jason Eisner (2008). Dependency Parsing by Belief Propagation. In EMNLP.

### Creative uses of classifiers in NLP

- Sep 18 (Markus Dreyer)
- D. Rosenberg, D. Klein and B. Taskar (2007). Mixture-of-Parents Maximum Entropy Markov Models. Uncertainty in Artificial Intelligence (UAI), Vancouver, BC, July.

- Sep 11 (Nikesh Garera)
- Yoav Goldberg and Michael Elhadad (2007). SVM Model Tampering and Anchored Learning: A Case Study in Hebrew NP Chunking. In ACL 2007.

- Libin Shen; Aravind K. Joshi (2003) An SVM-based voting algorithm with application to parse reranking. In HLT-NAACL 2003.

## Summer 2008

### Good current papers

- August 19 (Zhifei Li)
- Ahmad Emami and Frederick Jelinek (2006). A neural syntactic language model. Journal of machine learning, volume 60, numbers 1-3, September, 2005.

- August 5 (Zhifei Li)
- Libin Shen, Jinxi Xu and Ralph Weischedel (2008). A New String-to-Dependency Machine Translation Algorithm with a Target Dependency Language Model. In ACL 2008.

- July 29 (David Smith)
- Ronan Collobert and Jason Weston (2008). A Unified Architecture for Natural Language Processing: Deep Neural Networks with Multitask Learning. ICML 2008: Helsinki, Finland.

- July 22 (Nikesh Garera)
- Zornitsa Kozareva, Ellen Riloff and Eduard Hovy (2008). Semantic Class Learning from the Web with Hyponym Pattern Linkage Graphs. Proc. of ACL-08: HLT, Columbus, OH.

- July 15 (Markus Dreyer)
- Sittichai Jiampojamarn, Colin Cherry, and Grzegorz Kondrak (2008). Joint Processing and Discriminative Training for Letter-to-Phoneme Conversion. Proc. of ACL-08: HLT, Columbus, OH.

- July 8 (Delip Rao)
- Liang Sun, Shuiwang Ji, and Jieping Ye (2008). A Least Squares formulation for Canonical Correlation Analysis. Proc. of ICML-08, Helsinki

- Hotelling, in 1936, proposed a method to characterize the relationship between two variables which widely became known as "Canonical Correlation Analysis" (CCA). This involves solving the generalized eigenvalue problem of the kind Ax = \lambda Bx, which can further be reduced to the symmetric eigenvalue problem (via Cholesky decomposition) in the CCA case. It is a general interest in statistics literature to connect different statistical models to the least squares problem not only to exploit the simpler solutions for solving such problems but also to relate with other methods. The least squares formulation also allows extending the different models using the regularization framework. The least squares formulation for the CCA model involves tying together an older result showing the equivalence of CCA and the Fisher LDA, and a recent least squares formulation of multi-class LDA.

- CCA has been applied traditionally in social sciences and more recently in IR. There is literature applying CCA for problems in cross-lingual IR, image retrieval, and learning lexicons. Interestingly, the ACL'08 paper by Haghighi et. al. on learning bilingual lexicons using CCA is not the first paper to do that. There is at least one paper as early as 2004 by Cancedda & friends from XRCE that does something similar and does not get cited in the ACL paper.

- June 12 (Zhifei Li)
- Hao Zhang, Chris Quirk, Robert C. Moore and Daniel Gildea (2008). Bayesian Learning of Non-compositional Phrases with Synchronous Parsing. Proc. of ACL-08: HLT, Columbus, OH.

- June 5 (Markus Dreyer)
- Kuzman Ganchev, João Graça and Ben Taskar (2008). Better Alignments = Better Translations? Proc. of ACL-08: HLT, Columbus, OH.

- May 29 (Nikesh Garera)
- Aria Haghighi, Percy Liang, Taylor Berg-Kirkpatrick and Dan Klein (2008). Learning Bilingual Lexicons from Monolingual Corpora. Proc. of ACL-08: HLT, Columbus, OH.

## Spring 2008

### Dynamic programming speedups

- May 15 (David Smith)
- Geoffrey Zweig and Mukund Padmanabhan (2000). Exact Alpha-Beta Computation in Logarithmic Space with Application to MAP Word Graph Construction. Proc. of ICSLP, Beijing.

- This is a specialization to HMMs of the DBN version given earlier by Binder, Murphy & Russell (1997). See also section 3.7.1 of Kevin Murphy's thesis.

*Related work:*This*kind*of trick was really pioneered by D. S. Hirschberg (1975), who cut the space requirements of longest common subsequence from quadratic all the way down to linear. Hirschberg's version can be nicely adapted to edit distance. Now, edit distance (and more generally, multiple sequence alignment) is really just a special case of shortest path in a graph. Hirschberg (1975), above, was generalized by Korf (1999)'s "Divide and Conquer Bidirectional Search, which Korf & Zhang (2000) (who discuss all these algorithms) further improved to "Divide and Conquer Frontier Search." Edelkamp & Meyer (2001) give log-space methods for improving A* search for the shortest path in a graph. (Note that A* search often fits in memory for our DP problems; reducing its memory requirements becomes paramount when we are searching trees that branch without rejoining, e.g., chess.) Bidirectional search, which is distantly related to A*, is also pretty well studied, including recent work at JHU's AMS Dept.

- May 1 (John Blatz)
- Pedro Felzenswalb and David McAllester (2006). The Generalized A* Architecture. To appear in the
*Journal of Artificial Intelligence Research*.

- Apr. 24 (Zhifei Li)
- Liang Huang (2008). Forest Reranking: Discriminative Parsing with Non-Local Features. To appear in Proceedings of ACL 2008, Columbus, OH.

- Apr. 17 (Arnab Ghoshal)
- Liang Huang and David Chiang (2005). Better k-best parsing. Proceedings International Workshop on Parsing Technologies.

### Grammatical inference

- Apr. 10 (Wren Thornton)
- Carl de Marcken (1996), Linguistic structure as composition and perturbation. ACL.
- Also see thesis version.

- Apr. 3 (Nathaniel Filardo)
- A. Clark (2006). Learning Deterministic Context Free Grammars: The Omphalos Competition.

- Mar. 27 (Nikesh Garera)
- Stolcke, A. and Omohundro, S. (1993). Hidden Markov model induction by Bayesian model merging. Advances in Neural Information Processing Systems (Morgan Kaufmann, San Mateo, CA), 5, 11-18.

### Inference in graphical models

- Mar. 20 (Delip Rao)
- Jonathan Yedidia, William Freeman, and Yair Weiss (2001). Bethe free energy, Kikuchi approximations and belief propagation algorithms. MERL TR-2001-16.

- Mar. 6&13 (Markus Dreyer)
- M. J. Wainwright, T. Jaakkola and A. S. Willsky (2005). A new class of upper bounds on the log partition function. IEEE Trans. on Information Theory, 51, 2313--2335.

- Feb. 28 (David Smith)
- David MacKay (2003). Variational methods. Chapter 33 of Information Theory, Inference, and Learning Algorithms.

- Feb. 21 (David Smith)
- Michael I. Jordan et al. (1999). An Introduction to Variational Methods for Graphical Models Machine Learning, 37, 183–233.

- Feb. 7&14 (Delip Rao)
- M. I. Jordan and Y. Weiss (2002). Probabilistic Inference in Graphical Models, The Handbook of Brain Theory and Neural Networks (MIT Press).

## Fall 2007

### Semisupervised learning

- Dec. 12 (Delip Rao)
- M. Belkin, P. Niyogi, Laplacian Eigenmaps for Dimensionality Reduction and Data Representation, TechReport, UChicago, TR-2002-01
- Mikhail Belkin, Partha Niyogi, Vikas Sindhwani, On Manifold Regularization, AISTATS 2005

- Nov. 17 (David Smith)
- X. Zhu, Semi-Supervised Learning Literature Survey

### Recent parsing papers

- Nov. 3 (Christo Kirov)
- I. Titov, J. Henderson, Constituent Parsing with Incremental Sigmoid Belief Networks, ACL 2007

- Oct. 26 (Christo Kirov)
- Seginer, Yoav, Fast Unsupervised Incremental Parsing (syntax induction), ACL 2007

- Oct. 17 (Markus Dreyer)
- Nakagawa, Tetsuji, Multilingual Dependency Parsing Using Global Features, EMNLP-CoNLL 2007

### Text compression

- Oct. 10 (Nathaniel W Filardo)
- Mahoney, Matthew, Adaptive Weighting of Context Models for Lossless Data Compression, Florida Institute of Technology, CS Department, Technical report CS-2005-16, EMNLP-CoNLL 2007

*Some other possible papers that we didn't read (not vetted):*

- Approaches that consider recursive text structure
- Charikar et al. (2005), The smallest grammar problem
- de Marcken (1996), Linguistic structure as composition and perturbation (thesis version) - read later on 4/10/08
- Katajainen et al. (1986), Syntax-Directed Compression of Program Files

- Approaches that learn hidden state
- Cormack & Horspool (1987), Data Compression Using Dynamic Markov Modelling
- Hu et al. (year?), Language Modeling with Stochastic Automata

- Approaches that allow searches inside the compressed text
- Antonio Farina Martinez (2005), New Compression Codes for Text Databases (dissertation)
- Culpepper & Moffat (2006), Phrase-Based Pattern Matching in Compressed Text
- Shibata et al. (2000), A Boyer-Moore type algorithm for compressed pattern matching
- Shibata et al. (1999), Byte Pair Encoding: A Text Compression Scheme That Accelerates Pattern Matching
- Udi Manber (1997), A text compression scheme that allows fast searching directly in the compressed file

### Domain adaptation

- Oct. 3 (David Smith)
- Shai Ben-David, John Blitzer, Koby Crammer, Fernando Pereira, Analysis of Representations for Domain Adaptation

- Sep. 26 (Omar F Zaidan)
- J. Blitzer, R. McDonald, F. Pereira, Domain Adaptation with Structural Correspondence Learning, EMNLP 2006

## Summer 2007

### Good current papers

- Aug. 30 (Delip Rao)
- Gideon S. Mann, Simple, Robust, Scalable Semi-supervised Learning via Expectation Regularization, Proceedings of the 24 th International Conference on Machine Learning 2007

- Aug. 18 (Markus Dreyer)
- D. Talbot, M. Osborne, Randomised Language Modelling for Statistical Machine Translation, ACL 2007
- They use a space-efficient randomized data structure (Bloom Filter) to store very large n-gram models. There is a companion paper that people might want to have a quick look at as well, for comparison:
- D. Talbot, M. Osborne, Smoothed Bloom Filter Language Models: Tera-Scale LMs on the Cheap, ACL 2007

- Aug. 11 (Nikesh Garera)
- L. Shen, G. Satta, A. Joshi., Guided learning for bidirectional sequence classification, ACL 2007

- Aug. 3 (Yi Su)
- M. Galley, K. McKeown, Lexicalized Markov Grammars for Sentence Compression, NAACL-HLT 2007

- Jul. 18 (David Smith)
- P. Liang, S. Petrov, M. Jordan, D. Klein, The Infinite PCFG Using Hierarchical Dirichlet Processes, EMNLP-CoNLL 2007

- Jul. 6 (Christopher White)
- A. Braunstein, M. Mezard, R. Zecchina., Survey propagation: an algorithm for satisfiability, Random Structures and Algorithms, 2005.
- We sent some questions to Zecchina.

- Lukas Kroc, Ashish Sabharwal and Bart Selman. Survey propagation revisited: An empirical study. 23rd UAI, 2007.

- Jun. 21 (Christopher White)
- K. Murphy, Y. Weiss, M. Jordan, Loopy belief propagation for approximate inference: An empirical study, 15th UAI, pages 467-?75, 1999
- ... discussing (loopy) belief propagation as background for survey propagation, a topic which has been getting more attention lately for its ability to "solve very large hard combinatorial problems, such as determining the satisfiability of Boolean formulas. Chapter 8 of Chris Bishop's textbook is supposed to be a good treatment of graphical models overall. He covers BP in section 8.4.4 after first presenting factor graphs in 8.4.3., David MacKay's treatment of BP, also in terms of factor graphs, is in chapter 26 of his book [2]. It's worth reading this chapter in full, perhaps first reading chapter 16. ... the update equations are given as (26.11) and (26.12) ... [substantial further discussion by Jason was here] Some people may prefer Bishop's style, others MacKay's.

- Jun. 14 (David Smith)
- X. Zhu, Z. Ghahramani,J. Lafferty, Semi-supervised learning using Gaussian fields and harmonic functions, ICML 2003

- Jun. 6 (Nikesh Garera)
- A. Alexandrescu, K. Kirchhoff, Data-Driven Graph Construction for Semi-Supervised Graph-Based Learning in NLP, HLT/NAACL 2007

- Jun. 2 (Erin Fitzgerald)
- J. Jiang, C. Zhai, A Systematic Exploration of the Feature Space for Relation Extraction, HLT/NAACL 2007

- May 17 (Markus Dreyer)
- M. Galley, K. McKeown, Lexicalized Markov Grammars for Sentence Compression, HLT/NAACL 2007

- May 10 (David Smith )
- M. Johnson, T. Griffiths, and S. Goldwater, Bayesian Inference for PCFGs via Markov Chain Monte Carlo, HLT/NAACL 2007

## Spring 2007

### Integrating search and learning

- Apr. 19 (John Blatz)
- A. Prieditis, Machine discovery of Effective Admissible Heuristics , Machine Learning Journal, 1993

- Apr. 12 (Markus Dreyer)
- A. Haghighi, J. DeNero and D. Klein, Approximate Factoring for A* Search, NAACL-HLT 2007

- Mar. 29 & Apr. 5 (Zhifei Li)
- H. Daume III, J. Langford, and D. Marcu, Search-based structured prediction, Machine Learning Journal, forthcoming

- Mar. 8 (David Smith)
- H. Daume III & D. Marcu, Learning as search optimization: approximate large margin methods for structured prediction, ICML 2005

### Recent IR/QA papers (with an NLP or multilingual focus)

- Mar. 1 (Wei Chen)
- M. Kaisser, S. Scheible, and B. Webber, Experiments at the University of Edinburgh for the TREC 2006 QA track, TREC-15
- They do some fairly deep interpretation of sentences, extracting their predicate-argument structure.

- Feb. 22 (Eric Harley)
- K. Kan Lo & W. Lam, Using Semantic Relations with World Knowledge for Question Answering, TREC-15

### Unsupervised learning of morphology

- Feb. 15 (Nikhil Bojja)
- C. Monson et. al., Unsupervised Induction of Natural Language Morphology Inflection Classes, ACL Student Workshop '04

- Feb. 8 (Delip Rao)
- P. Schone and D. Jurafsky, Knowledge-free induction of morphology using latent semantic analysis , CoNLL 2000
- However, there was an extension of this work reported in NAACL-2001 that looks at circumfixes and prefix/affix combinations. [3]

- Feb. 1 (Nikesh Garera)
- D. Yarowsky and R. Wicentowski, Minimally supervised morphological analysis by multimodal alignment,ACL 2000
- For more details refer to Chapter 4 of Wicentowski's thesis.

## Fall 2006

### Syntax-based MT

- Dec. 13 (Delip Rao)
- J. Carbonell et. al., Context-based machine translation, AMTA 2006

- Dec. 6 (Jason Smith)
- M. Galley et. al., Scalable Inference and Training of Context-Rich Syntactic Translation Models, ACL 2006
- It may also be helpful to look at:
- M. Galley et. al., What's in a translation rule?, HLT/NAACL 2004

- Nov. 29 (Balakrishnan V)
- D. Marcu et. al., SPMT: Statistical Machine Translation with Syntactified Target Language Phrases , EMNLP 2006

- Nov. 15 (Eric Harley)
- D. Chiang, An introduction to synchronous grammars, ACL 2006 Tutorial
- Slides from the talk are also available. [4]

### Linguistics: Syntactic formalisms

- Nov. 8 (Elliott Drabek)
- K.Shklovsky, A Grammatical Sketch of Petalcingo Tzeltal, Undergraduate Thesis, Reed College, 2005
- It is 77 pages long, but not dense, and I will be skipping the following sections: Pages
- 01-14 Phonetics and phonology
- 18-18 Polyvalence
- 21-21 Inherent possession and ...
- 46-55 Tense and aspect and other sections

- Nov. 1 (Yi Su)
- M. Steedman, Gapping as Constituent Coordination, Linguistics and Philosophy, Vol. 13, 1990, pp.207-264.
- See Yi for photocopies.

- Oct. 25 (Markus Dreyer)
- S. Reizler et. al., Parsing the Wall Street Journal using a Lexical-Functional Grammar and Discriminative Estimation Techniques, ACL 2002

- Oct. 18 (Erin Fitzgerald)
- J. Bresnan & R.M. Kaplan, Lexical-Functional Grammar: A Formal System for Grammatical Representation , The Mental Representation of Grammatical Relations, MIT Press, 1982
- The edited collection that this appears in is generally interesting. Bresnan defends and develops lexicalized grammars in general; the idea of separate surface and semantic roles; and Bresnan & Kaplan's LFG in particular. You should know that she originated (in 1978) the extremely influential idea of lexicalized syntax -- the idea that a grammar is simply a collection of lexical entries to be assembled in standard language-independent ways, but that there are also "lexical redundancy rules" that relate, e.g., active and passive entries for the same verb. Some chapters address morphological and cognitive issues pertaining to lexicalization, including an essay by Pinker on lexicalist learning., Slides from Erin's presentation can be found here.

### Machine learning: Margin methods and structured classification

- Oct. 11 (John Blatz)
- L.Xu, D. Wilkinson, F. Southey, & D. Schuurmans, Discriminative Unsupervised Learning of Structured Predictors , ICML 2006

- Oct. 4 (Nikesh Garera)
- A. Culotta & J. Sorensen, Dependency Tree Kernels for Relation Extraction , ACL 2004

- D. Zelenko, C. Aone, & A. Richardella, Kernel Methods for Relation Extraction, JMLR, Volume 3, 2003

- Sep. 27 (David Smith)
- C. Cortes, P. Haffner, & M. Mohri, Rational Kernels , NIPS 2003

- Sep. 20 (Elliot Drabek)
- K.Q. Weinberger, F. Sha, & L.K. Saul, Learning a kernel matrix for nonlinear dimensionality reduction , ICML 2004

- S.T. Roweis & L.K. Saul, Nonlinear Dimensionality Reduction by Locally Linear Embedding , Science, 22 December 2000

- J.B. Tenenbaum, V. De Silva, & J.C. Langford, A global geometric framework for nonlinear dimensionality reduction , Science, 22 December 2000

- Sep. 13 (Roy Tromble)
- L. Xu, J. Neufeld, B. Larson, & D. Schuurmans, Maximum Margin Clustering , NIPS 2004

## Summer 2006

### Recent HLT-NAACL papers

- Aug. 4 (David Smith)
- Sharon Goldwater, Thomas L. Griffiths, Mark Johnson, Contextual Dependencies in Unsupervised Word Segmentation, ACL 2006
- Anyone looking for a more straight-up language modeling discussion can compare:
- Yee Whye Teh, A Hierarchical Bayesian Language Model Based On Pitman-Yor Processes, ACL 2006

- More resources:
- Machine Learning MLPedia page on Dirichlet Processes
- Michael Jordan's NIPS 2005 tutorial: Nonparametric Bayesian Methods: Dirichlet Processes, Chinese Restaurant Processes and All That
- Y. Teh, M. Jordan, M. Beal, and D. Blei, Hierarchical Dirichlet processes, Journal of the American Statistical Association, 2006

- Jul. 20 (Roy Tromble)
- Mehryar Mohri, Brian Roark, Probabilistic Context-Free Grammar Induction Based on Structural Zeros, HLT-NAACL, 2006

- Jul. 6 (Keith Hall)
- Charles Sutton, Michael Sindelar, Andrew McCallum, Reducing Weight Undertraining in Structured Discriminative Learning, HLT-NAACL, 2006

- Jun. 31 (Markus Dreyer)
- Joakim Nivre, Johan Hall et al, Labeled Pseudo-Projective Dependency Parsing with Support Vector Machines, CoNLL 2006
- J. Nivre, J. Nilsson, Pseudo-Projective Dependency Parsing, ACL 2005

- Jun. 24 (David Smith)
- Percy Liang, Ben Taskar, Dan Klein, Alignment by Agreement, HLT-NAACL 2006

## Spring 2006

### Algorithms for NLP (mostly)

- May 18 (Markus Dreyer)
- Jonathan May, Kevin Knight, A Better N-Best List: Practical Determinization of Weighted Finite Tree Automata, Proc. NAACL-HLT, 2006

- May 11 (John Blatz)
- M. Gengler, An introduction to parallel dynamic programming, Lecture Notes in Computer Science, 1996

- May 4 (David Smith)
- C. E. R. Alves, E. N. C′aceres F. Dehne, Parallel dynamic programming for solving the string editing problem on a CGM/BSP, SPAA 2002

- Apr. 20 (Balakrishnan V)
- Richard M. Karp, Michael 0. Rabin, Efficient randomized Pattern matching Algorithms, IBM Journal of Research and Development, 1987

- Mar. 31, Apr. 6 (Eric Harley)
- Ben Taskar, Lacoste-Julien Simon, Klein Dan, A Discriminative Matching Approach to Word Alignment, ACL 2005
- A related paper is
- Ryan McDonald, Fernando Pereira, Kiril Ribarov, Jan Hajic, Non-projective Dependency Parsing using Spanning Tree Algorithms, HLT-EMNLP 2005

- Mar.17 (Elliott Franco Drabek)
- Necip Fazil Ayan, Bonnie J. Dorr, Christof Monz, Alignment Link Projection Using Transformation-Based Learning, HLT-EMNLP 2005

- Mar.10 (Roy Tromble)
- Terry Koo, Michael Collins, Hidden-Variable Models for Discriminative Reranking, HLT-EMNLP 2005

- Mar.3 (Jason Riesa)
- Hal Daume III, Daniel Marcu, Domain Adaptation for Statistical Classifiers, Journal of Artificial Intelligence Research, 2006
- J. Gorman, J. Curran, Approximate Searching for Distributional Similarity, Proceedings of the ACL-SIGLEX Workshop on Deep Lexical Acquisition, 2005

- Feb. 23 (Omar F. Zaidan)
- Ravichandran, Pantel, Hovy, Randomized Algorithms and NLP: Using Locality Sensitive Hash Function for High Speed Noun Clustering, ACL 2005

### Consensus decoding

- Feb. 16 (Noah A Smith)
- Khalil Sima'an, Computational Complexity of Probabilistic Disambiguation by means of Tree-Grammars, COLING 1996
- Francisco Casacuberta, Colin de la Higuera, Computational complexity of problems on probabilistic grammars and transducers, LNAI 1981
- For a longer and more HMM/compbio view and extended results, see
- Rune B. Lyngsoe, Christian N. S. Pederson, The Consensus String Problem and the Complexity of Comparing Hidden Markov Models, Journal of Computer and System Sciences 65:545-69, 2002

### Extracting idioms

- Feb. 9 (John Blatz)
- Dominic Widdows, Beate Dorow, Automatic Extraction of Idioms using Graph Analysis and Asymmetric Lexicosyntactic Patterns, Proceedings of the ACL-SIGLEX Workshop on Deep Lexical Acquisition, 2005
- Afsaneh Fazly, Suzanne Stevenson, Automatic Acquisition of Knowledge about Multiword Predicates, Proceedings of the 19th Pacific Asia Conference on Language, Information, and Computation (PACLIC 2005).

## Fall 2005

### Good recent papers

- Nov. 23 (Roy Tromble)
- Sutton, Charles and McCallum, Andrew, Composition of Conditional Random Fields for Transfer Learning, HLT-EMNLP 2005

- Nov. 16 (Safiullah Shareef)
- Hassan Sawaf, Jörg Zaplo, Hermann Ney, Statistical Classification Methods for Arabic News Articles

- Nov. 4 (Jason Riesa)
- Luke S. Zettlemoyer, Michael Collins., Learning to Map Sentences to Logical Form: Structured Classification with Probabilistic Categorial, UAI 2005

- Oct. 27 (Markus Dreyer)
- D. Roth and W. Yih, Integer Linear Programming Inference for Conditional Random Fields, ICML 2005

- Oct. 20 (Roy Tromble)
- Sheila M. Reynolds, Jeff A. Bilmes, Part-of-Speech Tagging using Virtual Evidence and Negative Training, HLT-EMNLP 2005

### Statistical learning theory

- Sep. 21 (Arnab Ghoshal)
- M. Jordan,Statistical Learning Theory, Chapters 2-3

- Sep. 14 (Nikesh Garera)
- M. Jordan,Statistical Learning Theory, Chapter 8 (Exponential family and Generalized linear models)

## Summer 2005

### Gibbs sampling

- Sep. 1 (John, Markus, & Nikesh)
- B. Walsh, Markov Chain Monte Carlo and Gibbs Sampling, Lecture Notes for EEB 581, version 26 April 2004

- Aug. 26 (Roy Tromble)
- Jenny Rose Finkel, Trond Grenager, Christopher Manning, Incorporating Non-local Information into Information Extraction Systems by Gibbs Sampling, ACL 2005

### AI

- Aug. 19 (John Blatz)
- Niyogi, Sourabh, Steps Toward Deep Lexical Acquisition, ACL 2005

### Unsupervised or semi-supervised EM

- Aug. 5 (Adam)
- Duh, Kevin and Kirchhoff, Katrin, Tagging of Dialectal Arabic: A Minimally Supervised Approach, ACL 2005

- Jul. 28 (Zak)
- Takuya Matsuzaki, Yusuke Miyao, Jun'ichi Tsujii, Probabilistic CFG with Latent Annotations, ACL 2005

- Jul. 21 (Keith)
- Sharon Goldwater and Mark Johnson, Representational Bias in Unsupervised Learning of Syllable Structure, ACL 2005

- Jul. 21 (Damianos)
- Ando, Rie and Zhang, Tong, A High-Performance Semi-Supervised Learning Method for Text Chunking, ACL 2005

### Learning optimality-theoretic grammars

- Jul. 14 (John Blatz)
- Ying Lin, Learning Stochastic OT Grammars: A Bayesian Approach using Data Augmentation and Gibbs Sampling, ACL 2005

- Jul. 14 (Roy Tromble)
- Sharon Goldwater and Mark Johnson, Learning OT Constraint Rankings Using a Maximum Entropy Model, Proceedings of the Workshop on Variation within Optimality Theory, 2003

## Spring 2005

- May 7 (Markus Dreyer)
- M. Diligenti, F.M. Coetzee, S. Lawrence, C.L. Giles, M. Gori, Focused Crawling Using Context Graphs, 26th International Conference on Very Large Databases, VLDB 2000
- Adam Kilgarriff, Gregory Grefenstette, Introduction to the Special Issue on the Web as Corpus, Computational Lingustics, 2003

- Apr. 28 (Damianos Karakos)
- Alessandro Moschitti and Roberto Basili, Complex Linguistic Features for Text Classification: A comprehensive study, Proceedings of the 26th European Conference on Information Retrieval Research (ECIR 2004)

- Apr. 21 (Omar F. Zaidan)
- Tin Kam Ho, Jonathan J. Hull, Sargur N. Stihari, Decision Combination in Multiple Classifier Systems, IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol.16. No I. Jan. 1994
- Dan Klein, Kristina Toutanova, H. Tolga Ilhan, Sepandar D. Kamvar and Christopher D. Manning, Combining Heterogeneous Classifiers for Word-Sense Disambiguation, ACL 2002

- Apr. 16 (Brock Pytlik)
- V. Lavrenko, S.L Feng, R. Manmatha, Statistical models for automatic video annotation and retrieval, ICASSP 2004
- S.L Feng, R. Manmatha, V. Lavrenko, Multiple Bernoulli Relevance Models for Image and Video Annotation
- The first is a short paper about the relevance model. The second is a follow up paper that details a subsequent model based on the CRM.

- Apr. 9 (Noah A Smith)
- G. Elidan, N. Friedman., The Information Bottleneck EM Algorithm, UAI 2003
- G. Elidan, N. Friedman, Learning Hidden Variable Networks, JMLR 2005

- Feb. 25, Mar. 4, Mar. 11, Apr. 2 (David Smith)
- M. I. Jordan, Z. Ghahramani, T. S. Jaakkola, and L. K. Saul, Learning in Graphical Models, MIT Press, 1999

## Fall 2004

- Nov. 27 (Jia Cui)
- David M. Blei, Andrew Y. Ng, Michael I. Jordan, Latent Dirichlet Allocation, JMLR 2003
- Other papers on LDA: [www.cs.toronto.edu/~ywteh/research/npbayes/report.pdf], [7]

- Nov. 20 (David Smith)
- Olle Häggström and Karin Nelander, On Exact Simulation of Markov Random Fields Using Coupling from the Past, Foundation of the Scandinavian Journal of Statistics, 1999
- James Fill and Mark Huber, The Randomness Recycler: A New Technique for erfect Sampling, FOCS 2000

- Nov. 13 (Charles Schafer)
- Endika Bengoextea, Inexact Graph Matching Using Estimation of Distribution Algorithms, Chapter 2: The graph matching problem, Ph.D dissertation, 2002
- This chapter is general to the field although pretty sweeping and unspecific as a result. It probably makes a good introduction, since it gives an idea of the scope and diversity of the problem and proposed techniques ...

- Yakov Keselman, Ali Shokoufandeh, M. Fatih Demirci, Sven Dickinson, Many-to-Many Graph Matching via Metric Embedding, Computer Vision and Pattern Recognition, 2003. Proceedings. 2003 IEEE
- This is a state of the art paper which is quite dense but quite interesting. solves a very general formulation of inexact graph matching by first imbedding graphs into a normed space ...

- Nov. 5 (Michelle Vanni)
- Robert S. Swier and Suzanne Stevenson, Unsupervised Semantic Role Labelling, EMNLP 2004
- Nianwen Xue and Martha Palmer, Calibrating Features for Semantic Role Labelling, EMNLP 2004

- Oct. 29 (Eric Goldlust)
- Stephen Clark and James Curran, Parsing the WSJ using CCG and Log-Linear Models, ACL 2004

- Oct. 22 (Michelle Vanni)
- Dekang Lin and Franz Och, Automatic Evaluation of Machine Translation Quality Using Longest Common Subsequence, ACL 2004
- Babych and Hartley, Extending the BLEU MT Evaluation Method with Frequency Weightings, ACL 2004

- Oct. 15 (John Blatz)
- Daichi Mochihashi, Genichiro Kikui, Kenji Kita, Learning Nonstructural Distance Metric by Minimum Cluster Distortions, EMNLP 2004

- Oct. 2 (Nguyen Bach)
- Background knowledge on SVM and Graphical Models:

- Sep. 24, Oct. 7 (Roy Tromble)
- B. Taskar, C. Guestrin and D. Koller, Max-Margin Markov Networks, Neural Information Processing Systems Conference (NIPS03), 2003
- B. Taskar, D. Klein, M. Collins, D. Koller and C. Manning, Max-Margin Parsing, EMNLP 2004

- Sep. 9 (John Blatz)
- Pascale Fung and Percy Cheung, Mining Very-Non-Parallel Corpora: Parallel Sentence and Lexicon Extraction via Bootstrapping and EM, ACL 2004
- Dragos Stefan Munteanu, Alexander Fraser and Daniel Marcu, Improved Machine Translation Performance via Parallel Sentence Extraction from Comparable Corpora, ACL 2004

- Sep. 2 (Gideon Mann)
- Xin Li, Paul Morie, and Dan Roth, Robust Reading: Identification and Tracing of Ambiguous Names, ACL 2004
- Cheng Niu, Wei Li, Rohini K. Srihari, Weakly Supervised Learning for Cross-Document Person-Name Disambiguation Supported by Information Extraction, ACL 2004

- Aug. 27 (David Smith)
- I. Dan Melamed, Statistical Machine Translation by Parsing, ACL 2004
- Daniel Gildea, Dependencies vs. Constituents for Tree-Based Alignment, ACL 2004

- Aug. 20 (Damianos Karakos, Charles Schafer)
- P. Pantel and D. Lin, Discovering word senses from text, Proceedings of the eighth ACM SIGKDD international conference on Knowledge discovery and data mining, 2002
- Diana McCarthy, Rob Koeling, Julie Weeds, John Carroll, Finding Predominant Word Senses in Untagged Text, 2004

## Spring 2004

### Information extraction

- May 15 (Roy Tromble)
- Fuchun Peng, Andrew McCallum, Accurate Information Extraction from Research Papers using Conditional Random Fields,2004

- May 1 (Izhak Shafran)
- Eric J. Friedman, Strong Monotonicity in Surplus Sharing, 1999
- Used Tom Dietterich has a web page on probabilistic relational models:, [8]

- Apr. 24 (David Smith)
- McCallum and Jensen, Extraction and Data Mining using Conditional-Probability Relational Models, IJCAI'03 Workshop on Learning Statistical Models from Relational Data, 2003
- The paper is a survey of recent trends in IE and data mining (biased of course towards the authors' work) and a proposal to unify them with conditional random fields.

### Combinatorial optimization

- Apr. 17 (Elliott Franco Drabek)
- Rina Dechter, Mini-Buckets: A General Scheme for Generating Approximations in Automated Reasoning, 2001

- Apr. 10 (Noah Ashton Smith)
- Denys Duchier, Axiomatizing Dependency Parsing Using Set Constraints, Sixth Meeting on Mathematics of Language, 2000

- Apr. 3 (Roy Tromble)
- Roman Bartak, Constraint Programming: In Pursuit of the Holy Grail, 1999

### Learning how to search

- Mar. 25 (Eric Goldlust)
- Boyan and Moore, Learning Evaluation Functions to Improve Optimization by Local Search, Journal of Machine Learning Research, 2000

### Discourse, summarization, paraphrase

- Mar. 18 (Markus Dreyer)
- Eugene Charniak, Niyu Ge, John Hale, A Statistical Approach to Anaphora Resolution, Proceedings of the Sixth Workshop on Very Large Corpora, 1998

- Mar. 5 (Charles Schafer)
- Daniel Marcu, Theory and Practice of Discourse Parsing and Summarization, Chapters 2 & 3, The MIT Press, 2000

- Feb. 19 (David Smith)
- Barzilay and Lee, Learning to Paraphrase: An Unsupervise Approach Using Multiple-Sequence Alignment, HLT 2003

### Optimality theory

- Feb. 12 (Brock Pytlik)
- Bob Frank, Giorgio Satta, Optimality theory and the Generative Complexity of Constraint Violability, MIT Press

- Feb. 5 (Brock Pytlik)
- Jessica A. Barlow and Judith A. Gierut, Optimality theory in phonological acquisition, Journal of Speech, Language and Hearing 42, 1999
- Paul Boersma, Joost Dekkers and Jeroen van de WeijerIntroduction. In Optimality Theory: Phonology, Syntax and Acquisition, Oxford University Press 2000

## Fall 2003

- Dec. 12 (Paola Virga)
- Kamal Nigam and Rayid Ghani, Analyzing the Effectiveness and Applicability of Co-training, Ninth International Conference on Information and Knowledge Management 2000

- Nov. 20 (Noah A. Smith)
- Rebecca Hwa, Miles Osborne, Anoop Sarkar, Mark Steedman, Corrected Co-training for Statistical Parsers, ICML 2003

- Nov. 13 (Markus Dreyer)
- Goldman and Zhou, Enhancing Supervised Learning with Unlabeled Data, ICML 2000
- An additional paper with some experiments:
- Clark, Curran and Osborne, Bootstrapping POS taggers using Unlabelled Data, CoNLL 2003

- Nov. 6 (Brock Pytlik)
- Stuart M. Shieber, Transducers as a Substrate for Natural Language Processing

- Oct. 31 (Roy Tromble)
- Dekai Wu, An algorithm for simultaneously bracketing parallel texts by aligning words, ACL 1995

- Oct. 24 (Markus Dreyer)
- Stuart M. Shieber, Yves Schabes, Synchronous Tree-Adjoining Grammars, Coling 1990
- An additional closely related paper: Stuart M. Shieber, Yves Schabes, Generation and Synchronous Tree-Adjoining Grammars, Fifth International Workshop on Natural Language Generation

- Oct. 10 (David Smith)
- Bernard Comrie, Language Universals Linguistic Typology: Syntax and Morphology Language Universals, Chapters 6-7, Blackwell (1989)

- Oct. 3 (Michelle Vanni)
- Bernard Comrie, Language Universals Linguistic Typology: Syntax and Morphology Language Universals, Chapters 4-6, Blackwell (1989)

- Sep. 18 (David Smith)
- Bernard Comrie, Language Universals Linguistic Typology: Syntax and Morphology Language Universals, Chapters 2-3, Blackwell (1989)

- Sep. 11 (Elliott Franco Drabek)
- Bernard Comrie, Language Universals Linguistic Typology: Syntax and Morphology Language Universals, Chapters 1, Blackwell (1989)

## Spring 2003

- May 15 (Chal Haithaidharm)
- V. N. Vapnik, The Nature of Statistical Learning Theory, Chapters 7B, 8, 9

- May 8 (Noah Smith)
- V. N. Vapnik, The Nature of Statistical Learning Theory, Chapters 6B - 7A

- May 1 (Noah Smith)
- V. N. Vapnik, The Nature of Statistical Learning Theory, Chapters 5B - 6A

- Apr. 24 (Paola Virga)
- V. N. Vapnik, The Nature of Statistical Learning Theory, Chapters 4B - 5A

- Apr. 17 (Roy Tromble)
- V. N. Vapnik, The Nature of Statistical Learning Theory,Chapters 2B - 4A

- Apr. 10
- V. N. Vapnik, The Nature of Statistical Learning Theory, Intro and Chapters 1, 2A

- Mar.20 (Roy Tromble)
- Nikita Schmid, Ahmed Patel, Using Tree Automata and Regular Expressions to Manipulate Hierarchically Structured Data

- Mar.6 (Paola Virga)
- Carl M. Kadie, Christopher Meek, David Heckerman, A Collaborative Filtering System Using Posteriors Over Weights of Evidence, Proceedings of the Eighteenth Conference on Uncertainty in Artificial Intelligence, 2002.

- Feb. 26 (Elliott Drabek)
- Steven Abney, Bootstrapping, ACL'02

- Feb. 19 (Elliott Drabek)
- A. Lopez, M. Nossal, R. Hwa, P. Resnik, Word-level Alignment for Multilingual Resource Acquisition, Proceedings of the 2002 LREC Workshop on Linguistic Knowledge Acquisition and Representation: Bootstrapping Annotated Language Data

- Feb. 13 (David Smith)
- K. Church, Empirical Estimates of Adaptation: The chance of Two Noriega's is closer to p/2 than p
^{2}, COLING 2000, pp. 173-179

## Fall 2002

- Jul. 31 (Paola Virga)
- Kenji Yamada, Kevin Knight, A decoder for Syntax-based Statistical MT, ACL 2002

- Jul. 24 (Michelle Vanni)
- Paola Merlo, A Multilingual Paradigm for Automatic Verb Classification, ACL 2002

- Dec. 5 (Silviu Cucerzan)
- Darren Pearce, A Comparative Evaluation of Collocation Extraction Techniques, LREC 2002
- D. Lin, Automatic identification of non-compositional phrases, ACL 1999

- Nov. 21 (Silviu Cucerzan)
- Ueda, Nakano, Ghahramani, Hinton, SMEM Algorithm for Mixture Models, Neural Information Processing Systems 1998

- Nov. 14 (Michelle Vanni)
- Marti Hearst, Untangling Text Data Mining, ACL 1999

- Nov. 7 (Neda Khalili)
- Yamamoto, Church, Using Suffix Arrays to Compute Term Frequency and Document Frequency for All Substrings in a Corpus, Computational Linguistics 2001
- A related paper: Kageura, Bigram Statistics Revisited A Comparative Examination of Some Statistical Measures in Morphological Analysis of Japanese Kanji Sequences

- Nov. 1 (Chalaporn Hathaidharm)
- J. Gao, J. Goodman, M. Li, K. Lee, Toward A Unified Approach To Statistical Language Modeling For Chinese, ACM Transactions on Asian Language Information Processing, Vol. 1, No. 1, pp 3-33. 2002.

- Oct. 24 (Roy Tromble)
- Han, Benjamin, Building a Bilingual Dictionary with Scarce Resources: A Genetic Algorithm Approach

- Oct. 17 (David Smith)
- Cotton, Bird, An Integrated Framework for Treebanks and Multilayer Annotations, LREC 2002

- Oct. 8 (Elliott Franco Drabek)
- Ravichandran, Hovy, Learning Surface Text Patterns for a Question Answering System, ACL 2001
- A similar paper: Lin, Pantel, Discovery of Inference Rules for Question Answering, KDD 2001

- Oct. 2 (Gideon Mann)
- Gildea, Jurafsky, Automatic Labeling of Semantics Roles, ACL 2001

- Sep. 26 (Paul Ruhlen)
- Hwa, Resnik, Weinberg, Kolak, Evaluating Translational Correspondence using Annotation Projection, ACL 2002

- Sep. 19 (Paola Virga)
- Yamada, Knight, A decoder for Syntax-based Statistical MT, ACL 2002

- Sep. 10 (Noah A. Smith)
- Collins, Duffy., New Ranking Algorithms for Parsing and Tagging: Kernels over Discrete Structures, and the Voted Perceptron, ACL 2002

## Spring 2002

- Apr. 25 (Paul Ruhlen)
- H. Al-Adhaileh, Kong, Melamed, Malay-English Bitext Mapping and Alignment Using SIMR/GSA Algorithms, Malaysian National Conference on Research and Development on Lingustics 2001

- Apr. 18 (Paul Ruhlen)
- N. A. Rao, K. Rose, Deterministically annealed design of hidden Markov model speech recognizers, IEEE Trans. on Speech and Audio Processing, vol. 9, (no. 2), Feb. 2001

- Apr. 11 (Paola Virga)
- Neal, Hinton, A view of the EM algorithm that justifies incremental, sparse, and other variants, Learning in Graphical Models, 1999
- And this article builds on the above. It tests an incremental version of EM (carefully choosing how incremental it will be), as well as a "lazy EM" version that visits "significant" cases more often.

- Mar. 28 (Swapna Somasundaran)
- Crestan, El-Beze, Improving supervised WSD by including rough semantic features in a Multilevel view of the Context, SEMPRO Workshop, Edinburgh, 2001.

- Mar. 14 (Noah A. Smith)
- Ratnaparkhi, A Simple Introduction to Maximum Entropy Models for NLP, Institute for Research in Cognitive Science, Univ. of Penn.

- Feb. 28 (Silviu Cucerzan)
- Marcu, Towards a Unified Approach to Memory- and Statistical-Based Machine Translation, Annual Meeting of the ACL, Proceedings of the 39th Annual Meeting on Association for Computational Linguistics '2001

- Feb. 21 (Jia Cui)
- Barzilay, McKeown, Extracting Paraphrases from a Parallel Corpus, Computer Science Department, Columbia Univ.

- Feb. 14 (Charles Schafer)
- Yaser, Germann, Translating with Scarce Resources, American Association for Artificial Intelligence 2000

- Feb. 7 (Paola Virga)
- Knight, Graehl, Machine Transliteration, ACL-EACL 1997

## Fall 2001

- Dec. 14 (Jia Cui)
- Jerome Bellegarda, Exploiting latent semantic information in statistical language models, Proceedings of the IEEE, 88:8, Aug. 2000

- Nov. 29 (Silviu Cucerzan)
- Mike Collins, Yoram Singer, Unsupervised Models for Named Entity Classification, EMNLP/VLC'99

- Nov. 20 (Radu Florian)
- Blum, Mitchell, Combining Labeled and Unlabeled Data with Co-Training, COLT 1998

- Nov. 16 (Richard Wicentowski)
- Eisner, Satta, Efficient parsing for bilexical context-free grammars and head automaton grammars, ACL 1999
- Plagiarism detection systems might be relevant to bitext alignment. A message to the Corpora list yesterday announced the following review paper: [9]

- Nov. 2 (Paul Ruhlen)
- Manning, Schuetze, Foundations of Statistical Natural Language Processing, Section 14 (clustering), pp. 495-527, MIT Press

- Oct. 26 (Gideon Mann)
- Tishby, Pereira, Bialek, The information bottleneck method
- The paper describes a clustering method which is a generalization of their earlier work on "Distributional Clustering of English Words" (Pereira, Tishby and Lee '93).