Using Commonsense Knowledge to Answer Why-Questions
Yash Kumar Lal, Niket Tandon, Tanvi Aggarwal, Horace Liu, Nathanael Chambers, Raymond Mooney, Niranjan Balasubramanian EMNLP-22. Abu Dhabi, UAE. December 2022.
Analyzing the Contribution of Commonsense Knowledge Sources for Why-Question Answering
Yash Kumar Lal, Horace Liu, Niket Tandon, Nathanael Chambers, Ray Mooney, Niranjan Balasubramanian Workshop on Commonsense Representation and Reasoning. Dublin, Ireland. May 2022.
2021
Toward Diverse Precondition Generation
Heeyoung Kwon, Nathanael Chambers, Niranjan Balasubramanian Joint Conference on Lexical and Computational Semantics (*SEM). August 2021.
Conditional Generation of Temporally-ordered Event Sequences
Shih-Ting Lin, Nathanael Chambers, Greg Durrett ACL-2021. Online due to COVID-19. August 2021.
TellMeWhy: A Dataset for Answering Why-Questions in Narratives
Yash Kumar Lal, Nathanael Chambers, Raymond Mooney, Niranjan Balasubramanian Findings of ACL-2021. August 2021. [ code/data ]
Don't Let Discourse Confine Your Model: Sequence Perturbations for Improved Event Language Models
Mahnaz Koupaee, Greg Durrett, Nathanael Chambers, Niranjan Balasubramanian ACL-2021. Online due to COVID-19. August 2021.
Extracting Phone Numbers from Adversarial & Visually Corrupted Text
Tim Forman and Nathanael Chambers Visually Grounded Interaction and Language (ViGIL) Workshop. June 2021. [ PDF ]
2020
Generating Narrative Text in a Switching Dynamical System
Noah Weber, Leena Shekhar, Heeyoung Kwon, Nathanael Chambers, Niranjan Balasubramanian CoNLL-2020. November 2020. [ PDF ]
Modeling Preconditions in Text with a Crowd-sourced Dataset
Heeyoung Kwon, Mahnaz Koupaee, Pratyush Singh, Gargi Sawhney, Anmol Shukla, Keerthi Kumar Kallur, Nathanael Chambers, Niranjan Balasubramanian Findings of EMNLP-2020. November 2020.[38% acceptance] [ PDF ]
Connecting the Dots: Event Graph Schema Induction with Path Language Modeling
Manling Li, Qi Zeng, Ying Lin, Kyunghyun Cho, Heng Ji, Jonathan May, Nathanael Chambers, Clare Voss EMNLP-2020. Online due to COVID-19. November 2020.[24% acceptance]
Modeling Label Semantics for Predicting Emotional Reactions
Radhika Gaonkar, Heeyoung Kwon, Mohaddeseh Bastan, Niranjan Balasubramanian, Nathanael Chambers ACL-2020. Online due to COVID-19. July 2020.[18% acceptance] [ PDF ]
2019
Character-Based Models for Adversarial Phone Number Extraction: Preventing Human Sex Trafficking
Nathanael Chambers, Timothy Forman, Catherine Griswold, Yogaish Khastgir, Kevin Lu, Stephen Steckler Workshop on Noisy User-Generated Text at EMNLP-19. Hong Kong. Nov 2019. Best Paper Award. [ PDFdata ]
2018
Learning Typed Entailment Graphs with Global Soft Constraints
Mohammad Hosseini, Nathanael Chambers, Siva Reddy, Xavier Holt, Shay Cohen, Mark Johnson, Mark Steedman Transactions of the ACL (TACL), Volume 6, pp 703-718. Dec 2018. [ PDF ]
Hierarchical Quantized Representations for Script Generation
Leena Shekhar and Noah Weber and Niranjan Blasubramian and Nathanael Chambers EMNLP-2018, Brussels, Belgium. Nov 2018.[24% acceptance] [ PDF ]
Using Social Media Text to Detect Denial-of-Service Attacks: Applying NLP to Network Security
Nathanael Chambers and Ben Fry and James McMasters NAACL-2018, New Orleans, USA. June 2018.[32% acceptance] [ PDFdata ]
Event Representations with Tensor-based Compositions
Noah Weber, Niranjan Balasubramanian, and Nathanael Chambers AAAI-2018, New Orleans, USA. Feb 2018.[25% acceptance] [ PDF ]
2017
Event Ordering with a Generalized Model for Sieve Prediction Ranking
Bill McDowell, Nathanael Chambers, Alexander G. Ororbia II, and David Reitter IJCNLP-2017, Taipei, Taiwan. 2017.[31% acceptance] [ PDF ]
Aligning Entity Names with Online Aliases on Twitter
Kevin McKelvey, Peter Goutzounis, Stephen da Cruz, and Nathanael Chambers 5th International Wkshp on NLP for Social Media, Valencia, Spain. 2017. [46% acceptance] [ PDFdata ]
Behind the Scenes of an Evolving Event Cloze Test
Nathanael Chambers Workshop on Linking Models of Lexical, Sentential, and Discourse-level Semantics (LSDSem). Valencia, Spain. 2017.
[ PDF ]
LSDSem 2017 Shared Task: The Story Cloze Test
Nasrin Mostafazadeh, Michael Roth, Annie Louis, Nathanael Chambers, James Allen Workshop on Linking Models of Lexical, Sentential, and Discourse-level Semantics (LSDSem). Valencia, Spain. 2017.
[ PDF ]
2016
A Corpus and Cloze Evaluation for Deeper Understanding of Commonsense Stories
Nasrin Mostafazadeh, Nathanael Chambers, Xiaodong He, Devi Parikh, Dhruv Batra, Lucy Vanderwende, Pushmeet Kohli, James Allen NAACL-2016, San Diego. 2016. [24% acceptance] [ PDF ]
CaTeRS: Causal and Temporal Relation Scheme for Semantic Annotation of Event Structures
Nasrin Mostafazadeh, Alyson Grealish, Nathanael Chambers, James Allen, Lucy Vanderwende Proceedings of the Event Workshop of the North American Chapter of the ACL (NAACL). San Diego. 2016.
[ PDF ]
2015
Identifying Political Sentiment between Nation States with Social Media
Nathanael Chambers, Victor Bowen, Ethan Genco, Xisen Tian, Eric Young, Ganesh Harihara, Eugene Yang EMNLP-2015. Lisbon, Portugal. 2015. [24% acceptance] [ PDF ] [ data ]
SemEval-2015 Task 5: QA TEMPEVAL - Evaluating Temporal Information Understanding with Question Answering
Hector Llorens, Nathanael Chambers, Naushad UzZaman, Nasrin Mostafazadeh, James Allen, James Pustejovsky Proceedings of the Workshop on Semantic Evaluations. Association for Computational Linguistics, 2015.
[ PDF ]
2014
Dense Event Ordering with a Multi-Pass Architecture
Nathanael Chambers, Taylor Cassidy, Bill McDowell, and Steven Bethard Transactions of the ACL, Volume 2, 273-284. October 2014.
[ PDFcode and data ]
An Annotation Framework for Dense Event Ordering
Taylor Cassidy, Bill McDowell, Nathanael Chambers, and Steven Bethard ACL-2014, Baltimore, MD. 2014. [25% acceptance] [ PDFdata ]
2013
Event Schema Induction with a Probabilistic Entity-Driven Model
Nathanael Chambers EMNLP-2013, Seattle, WA. 2013. [27% acceptance] [ PDF ]
NavyTime: Event and Time Ordering from Raw Text
Nathanael Chambers Proceedings of the 7th International Workshop on Semantic Evaluation, Task 1. 2013.
[ PDF ]
USNA: A Dual-Classifier Approach to Contextual Sentiment Analysis
Ganesh Harihara, Eugene Yang, and Nathanael Chambers Proceedings of the 7th International Workshop on Semantic Evaluation, Task 2. 2013.
[ PDF ]
Deterministic coreference resolution based on entity-centric, precision-ranked rules.
Heeyoung Lee, Angel Chang, Yves Peirsman, Nathanael Chambers, Mihai Surdeanu and Dan Jurafsky. Computational Linguistics 39(4). 2013. [ journal download ]
2012
Labeling Documents with Timestamps: Learning from their Time Expressions
Nathanael Chambers ACL-2012, Jeju, Republic of Korea. July 2012. [19% acceptance] [ PDF ]
Learning the Central Events and Participants in Unlabeled Text
Nathanael Chambers ICML-2012, Edinburgh, Scotland. June 2012. [invited talk/paper]
Learning for Microblogs with Distant Supervision: Political Forecasting with Twitter
Micol Marchetti-Bowick and Nathanael Chambers EACL-2012, Avignon, France. April 2012. [27% acceptance] [ PDF ]
2011
Inducing Event Schemas and their Participants from Unlabeled Text
Nathanael Chambers PhD Dissertation, Stanford University. June 2011.
[ PDF ]
Template-Based Information Extraction without the Templates
Nathanael Chambers and Dan Jurafsky ACL-2011, Portland, OR. 2011. [26% acceptance] [ PDF ]
Stanford's Multi-Pass Sieve Coreference Resolution System at the CoNLL-2011 Shared Task
Heeyoung Lee, Yves Peirsman, Angel Chang, Nathanael Chambers, Mihai Surdeanu, Dan Jurafsky CoNLL-2011 Shared Task, Portland, OR. 2011.
[ PDF ]
Using Query Patterns to Learn the Duration of Events
Andrey Gusev, Nathanael Chambers, Pranav Khaitan, Divye Khilnani, Steven Bethard, Dan Jurafsky IWCS-2011, Oxford, UK. 2011. [42% acceptance] [ PDF ]
2010
A Multi-Pass Sieve for Coreference Resolution
Karthik Raghunathan, Heeyoung Lee, Sudarshan Rangarajan, Nathanael Chambers, Mihai Surdeanu, Dan Jurafsky, Christopher Manning EMNLP-2010, Boston, USA. 2010. [25% acceptance] [ PDF ]
Improving the Use of Pseudo-Words for Evaluating Selectional Preferences
Nathanael Chambers and Dan Jurafsky ACL-2010, Uppsala, Sweden. 2010. [25% acceptance] [ PDF ]
A Database of Narrative Schemas
Nathanael Chambers and Dan Jurafsky LREC-2010, Malta. 2010.
[ PDF ]
2009
Unsupervised Learning of Narrative Schemas and their Participants
Nathanael Chambers and Dan Jurafsky ACL-09, Singapore. 2009. [21% acceptance] [ PDF ]
2008
Jointly Combining Implicit Constraints Improves Temporal Ordering
Nathanael Chambers and Dan Jurafsky EMNLP-08, Waikiki, Hawaii, USA. 2008. [30% acceptance] [ PDF ]
Unsupervised Learning of Narrative Event Chains
Nathanael Chambers and Dan Jurafsky ACL-08, Ohio, USA. 2008. [25% acceptance] [ PDF ]
2007
Classifying Temporal Relations Between Events
Nathanael Chambers, Shan Wang, Dan Jurafsky ACL-07, Prague. 2007. [22% acceptance] [ PDF ]
Learning Alignments and Leveraging Natural Logic
Nathanael Chambers, Daniel Cer, Trond Grenager, David Hall, Chloe Kiddon, Bill MacCartney, Marie-Catherine de Marneffe, Daniel Ramage, Eric Yeh and Christopher D. Manning ACL Workshop on Textual Entailment and Paraphrase, Prague. 2007.
[ PDF ]
PLOW: A Collaborative Task Learning Agent.
Allen, J., Chambers, N., Ferguson, G., Galescu, L., Jung, H., Swift, M., and Taysom, W Proceedings of the Twenty-Second Conference on Artificial Intelligence (AAAI-07), Vancouver, Canada, Jul 22-26. Outstanding paper award winner.
2006
Using Semantics to Identify Web Objects
Nathanael Chambers, James Allen, Lucian Galescu, Hyuckchul Jung, William Taysom AAAI-06, Boston USA. July 18-20, 2006.
[ PDF ]
One-Shot Procedure Learning from Instruction and Observation
Hyuckchul Jung, James Allen, Nathanael Chambers, Lucian Galescu, Mary Swift, William Taysom FLAIRS, Florida USA. May 11-13, 2006.
[ PDF ]
Chester: Towards a Personal Medical Advisor
James Allen, Ferguson, Blaylock, Byron, Chambers, Dzikovska, Galescu, Swift Journal of Biomedical Informatics. 2006.
2005
Real-Time Stochastic Language Generation for Dialogue Systems
Nathanael Chambers European Workshop for Natural Language Generation
Aberdeen, Scotland. pp 40-48. 2005.
[ PDF ]
Approaches for Automatically Tagging Affect
Nathanael Chambers, Joel Tetreault, James Allen Computing Affect and Attitude in Text: Theory and Applications. Springer, 2005. pp. 143-158.
[ PDF ]
A Dialogue-Based Approach to Multi-Robot Team Control
Nathanael Chambers, James Allen, Lucian Galescu, and Hyuckchul Jung In Proceedings 3rd International Multi-Robot Systems Workshop. Washington, DC. March 14-16, 2005
[ PDF ]
Two diverse systems built using generic components for spoken dialogue (Recent progress on TRIPS).
Allen, Ferguson, Swift, Stent, Stoness, Galescu, Chambers, Campana and Aist In Proceedings of the ACL Interactive Poster and Demonstration Sessions. Ann Arbor Michigan. June 2005. pp. 85-88
[ PDF ]
2004
Stochastic Language Generation in a Dialogue System: Toward a Domain Independent Generator
Nathanael Chambers and James Allen In Proceedings 5th SIGdial Workshop on Discourse and Dialogue. Boston, USA, April 30-May 1, 2004
[ PDF ]
Approaches for Automatically Tagging Affect
Nathanael Chambers, Joel Tetreault, and James Allen In Proceedings AAAI Symposium of Exploring Affect and Attitude in Text. Stanford, USA, March 25-27, 2004
[ PDF ]
Policy-based coordination in joint human-agent activity
Bradshaw, Feltovich, Jung, Kulkarni, Allen, Bunch, Chambers, Galescu, Jeffers, Johnson, Sierhuis, Taysom, Uszok, Van Hoof Proceedings of the IEEE International Conference on Systems, Man, and Cybernetics, 2004.
Toward trustworthy adjustable autonomy and mixed-initiative interaction in KAoS
Bradshaw, Jung, Kulkarni, Allen, Bunch, Chambers, Feltovich, Galescu, Jeffers, Johnson, Taysom, Uszok Proceedings of the AAMAS 2004 Trust workshop, New York City, NY, July 2004
Teamwork-centered Autonomy for Extended Human-Agent Interaction in Space Applications
Bradshaw, Acquisti, Allen, Breedy, Bunch, Chambers, Feltovich, Galescu, Goodrich, Jeffers, Johnson, Jung, Lott, Olsen, Sierhuis, Suri, Taysom, Tonti, Uszok AAAI 2004 Spring Symposium. Stanford, USA, AAAI Press. 2004
2002
The Medication Advisor Project: Preliminary Report
George Ferguson, James Allen, Nate Blaylock, Donna Byron, Nate Chambers, Myroslava Dzikovska, Lucian Galescu, Xipeng Shen, Robert Swier, and Mary Swift
Technical Report 776, Dept. of Computer Science, University of Rochester, May 2002