Sameer Pradhan

Also published as: S. Pradhan, Sameer S. Pradhan


2021

pdf bib
OntoGUM: Evaluating Contextualized SOTA Coreference Resolution on 12 More Genres
Yilun Zhu | Sameer Pradhan | Amir Zeldes
Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing (Volume 2: Short Papers)

SOTA coreference resolution produces increasingly impressive scores on the OntoNotes benchmark. However lack of comparable data following the same scheme for more genres makes it difficult to evaluate generalizability to open domain data. This paper provides a dataset and comprehensive evaluation showing that the latest neural LM based end-to-end systems degrade very substantially out of domain. We make an OntoNotes-like coreference dataset called OntoGUM publicly available, converted from GUM, an English corpus covering 12 genres, using deterministic rules, which we evaluate. Thanks to the rich syntactic and discourse annotations in GUM, we are able to create the largest human-annotated coreference corpus following the OntoNotes guidelines, and the first to be evaluated for consistency with the OntoNotes scheme. Out-of-domain evaluation across 12 genres shows nearly 15-20% degradation for both deterministic and deep learning systems, indicating a lack of generalizability or covert overfitting in existing coreference resolution models.

2020

pdf bib
Proceedings of the Third Workshop on Computational Models of Reference, Anaphora and Coreference
Maciej Ogrodniczuk | Vincent Ng | Yulia Grishina | Sameer Pradhan
Proceedings of the Third Workshop on Computational Models of Reference, Anaphora and Coreference

2019

pdf bib
Proceedings of the Second Workshop on Computational Models of Reference, Anaphora and Coreference
Maciej Ogrodniczuk | Sameer Pradhan | Yulia Grishina | Vincent Ng
Proceedings of the Second Workshop on Computational Models of Reference, Anaphora and Coreference

2018

pdf bib
The New Propbank: Aligning Propbank with AMR through POS Unification
Tim O’Gorman | Sameer Pradhan | Martha Palmer | Julia Bonn | Katie Conger | James Gung
Proceedings of the Eleventh International Conference on Language Resources and Evaluation (LREC 2018)

pdf bib
Proceedings of the Joint Workshop on Linguistic Annotation, Multiword Expressions and Constructions (LAW-MWE-CxG-2018)
Agata Savary | Carlos Ramisch | Jena D. Hwang | Nathan Schneider | Melanie Andresen | Sameer Pradhan | Miriam R. L. Petruck
Proceedings of the Joint Workshop on Linguistic Annotation, Multiword Expressions and Constructions (LAW-MWE-CxG-2018)

2016

pdf bib
Proceedings of ACL-2016 System Demonstrations
Sameer Pradhan | Marianna Apidianaki
Proceedings of ACL-2016 System Demonstrations

pdf bib
My Science Tutor—Learning Science with a Conversational Virtual Tutor
Sameer Pradhan | Ron Cole | Wayne Ward
Proceedings of ACL-2016 System Demonstrations

pdf bib
CoNLL 2016 Shared Task on Multilingual Shallow Discourse Parsing
Nianwen Xue | Hwee Tou Ng | Sameer Pradhan | Attapol Rutherford | Bonnie Webber | Chuan Wang | Hongmin Wang
Proceedings of the CoNLL-16 shared task

pdf bib
CAMR at SemEval-2016 Task 8: An Extended Transition-based AMR Parser
Chuan Wang | Sameer Pradhan | Xiaoman Pan | Heng Ji | Nianwen Xue
Proceedings of the 10th International Workshop on Semantic Evaluation (SemEval-2016)

2015

pdf bib
Bridging Sentential and Discourse-level Semantics through Clausal Adjuncts
Rashmi Prasad | Bonnie Webber | Alan Lee | Sameer Pradhan | Aravind Joshi
Proceedings of the First Workshop on Linking Computational Models of Lexical, Sentential and Discourse-level Semantics

pdf bib
SemEval-2015 Task 14: Analysis of Clinical Text
Noémie Elhadad | Sameer Pradhan | Sharon Gorman | Suresh Manandhar | Wendy Chapman | Guergana Savova
Proceedings of the 9th International Workshop on Semantic Evaluation (SemEval 2015)

pdf bib
Boosting Transition-based AMR Parsing with Refined Actions and Auxiliary Analyzers
Chuan Wang | Nianwen Xue | Sameer Pradhan
Proceedings of the 53rd Annual Meeting of the Association for Computational Linguistics and the 7th International Joint Conference on Natural Language Processing (Volume 2: Short Papers)

pdf bib
The CoNLL-2015 Shared Task on Shallow Discourse Parsing
Nianwen Xue | Hwee Tou Ng | Sameer Pradhan | Rashmi Prasad | Christopher Bryant | Attapol Rutherford
Proceedings of the Nineteenth Conference on Computational Natural Language Learning - Shared Task

pdf bib
A Transition-based Algorithm for AMR Parsing
Chuan Wang | Nianwen Xue | Sameer Pradhan
Proceedings of the 2015 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies

2014

pdf bib
Temporal Annotation in the Clinical Domain
William F. Styler IV | Steven Bethard | Sean Finan | Martha Palmer | Sameer Pradhan | Piet C de Groen | Brad Erickson | Timothy Miller | Chen Lin | Guergana Savova | James Pustejovsky
Transactions of the Association for Computational Linguistics, Volume 2

This article discusses the requirements of a formal specification for the annotation of temporal information in clinical narratives. We discuss the implementation and extension of ISO-TimeML for annotating a corpus of clinical notes, known as the THYME corpus. To reflect the information task and the heavily inference-based reasoning demands in the domain, a new annotation guideline has been developed, “the THYME Guidelines to ISO-TimeML (THYME-TimeML)”. To clarify what relations merit annotation, we distinguish between linguistically-derived and inferentially-derived temporal orderings in the text. We also apply a top performing TempEval 2013 system against this new resource to measure the difficulty of adapting systems to the clinical domain. The corpus is available to the community and has been proposed for use in a SemEval 2015 task.

pdf bib
SemEval-2014 Task 7: Analysis of Clinical Text
Sameer Pradhan | Noémie Elhadad | Wendy Chapman | Suresh Manandhar | Guergana Savova
Proceedings of the 8th International Workshop on Semantic Evaluation (SemEval 2014)

pdf bib
An Extension of BLANC to System Mentions
Xiaoqiang Luo | Sameer Pradhan | Marta Recasens | Eduard Hovy
Proceedings of the 52nd Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers)

pdf bib
Scoring Coreference Partitions of Predicted Mentions: A Reference Implementation
Sameer Pradhan | Xiaoqiang Luo | Marta Recasens | Eduard Hovy | Vincent Ng | Michael Strube
Proceedings of the 52nd Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers)

pdf bib
Descending-Path Convolution Kernel for Syntactic Structures
Chen Lin | Timothy Miller | Alvin Kho | Steven Bethard | Dmitriy Dligach | Sameer Pradhan | Guergana Savova
Proceedings of the 52nd Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers)

2013

pdf bib
Discovering Temporal Narrative Containers in Clinical Text
Timothy Miller | Steven Bethard | Dmitriy Dligach | Sameer Pradhan | Chen Lin | Guergana Savova
Proceedings of the 2013 Workshop on Biomedical Natural Language Processing

pdf bib
Towards Robust Linguistic Analysis using OntoNotes
Sameer Pradhan | Alessandro Moschitti | Nianwen Xue | Hwee Tou Ng | Anders Björkelund | Olga Uryupina | Yuchen Zhang | Zhi Zhong
Proceedings of the Seventeenth Conference on Computational Natural Language Learning

2012

pdf bib
Joint Conference on EMNLP and CoNLL - Shared Task
Sameer Pradhan | Alessandro Moschitti | Nianwen Xue
Joint Conference on EMNLP and CoNLL - Shared Task

pdf bib
CoNLL-2012 Shared Task: Modeling Multilingual Unrestricted Coreference in OntoNotes
Sameer Pradhan | Alessandro Moschitti | Nianwen Xue | Olga Uryupina | Yuchen Zhang
Joint Conference on EMNLP and CoNLL - Shared Task

2011

pdf bib
Proceedings of the 5th Linguistic Annotation Workshop
Nancy Ide | Adam Meyers | Sameer Pradhan | Katrin Tomanek
Proceedings of the 5th Linguistic Annotation Workshop

pdf bib
Proceedings of the Fifteenth Conference on Computational Natural Language Learning: Shared Task
Sameer Pradhan
Proceedings of the Fifteenth Conference on Computational Natural Language Learning: Shared Task

pdf bib
CoNLL-2011 Shared Task: Modeling Unrestricted Coreference in OntoNotes
Sameer Pradhan | Lance Ramshaw | Mitchell Marcus | Martha Palmer | Ralph Weischedel | Nianwen Xue
Proceedings of the Fifteenth Conference on Computational Natural Language Learning: Shared Task

2010

pdf bib
SemEval-2010 Task 14: Word Sense Induction &Disambiguation
Suresh Manandhar | Ioannis Klapaftis | Dmitriy Dligach | Sameer Pradhan
Proceedings of the 5th International Workshop on Semantic Evaluation

pdf bib
The Revised Arabic PropBank
Wajdi Zaghouani | Mona Diab | Aous Mansouri | Sameer Pradhan | Martha Palmer
Proceedings of the Fourth Linguistic Annotation Workshop

2009

pdf bib
OntoNotes: The 90% Solution
Sameer S. Pradhan | Nianwen Xue
Proceedings of Human Language Technologies: The 2009 Annual Conference of the North American Chapter of the Association for Computational Linguistics, Companion Volume: Tutorial Abstracts

2008

pdf bib
Towards Robust Semantic Role Labeling
Sameer S. Pradhan | Wayne Ward | James H. Martin
Computational Linguistics, Volume 34, Number 2, June 2008 - Special Issue on Semantic Role Labeling

2007

pdf bib
Towards Robust Semantic Role Labeling
Sameer Pradhan | Wayne Ward | James Martin
Human Language Technologies 2007: The Conference of the North American Chapter of the Association for Computational Linguistics; Proceedings of the Main Conference

pdf bib
SemEval-2007 Task-17: English Lexical Sample, SRL and All Words
Sameer Pradhan | Edward Loper | Dmitriy Dligach | Martha Palmer
Proceedings of the Fourth International Workshop on Semantic Evaluations (SemEval-2007)

2005

pdf bib
Semantic Role Chunking Combining Complementary Syntactic Views
Sameer Pradhan | Kadri Hacioglu | Wayne Ward | James H. Martin | Daniel Jurafsky
Proceedings of the Ninth Conference on Computational Natural Language Learning (CoNLL-2005)

pdf bib
Semantic Role Labeling Using Different Syntactic Views
Sameer Pradhan | Wayne Ward | Kadri Hacioglu | James Martin | Daniel Jurafsky
Proceedings of the 43rd Annual Meeting of the Association for Computational Linguistics (ACL’05)

2004

pdf bib
Semantic Role Labeling by Tagging Syntactic Chunks
Kadri Hacioglu | Sameer Pradhan | Wayne Ward | James H. Martin | Daniel Jurafsky
Proceedings of the Eighth Conference on Computational Natural Language Learning (CoNLL-2004) at HLT-NAACL 2004

pdf bib
Mixing Weak Learners in Semantic Parsin
Rodney D. Nielsen | Sameer Pradhan
Proceedings of the 2004 Conference on Empirical Methods in Natural Language Processing

pdf bib
Shallow Semantic Parsing using Support Vector Machines
Sameer S. Pradhan | Wayne H. Ward | Kadri Hacioglu | James H. Martin | Dan Jurafsky
Proceedings of the Human Language Technology Conference of the North American Chapter of the Association for Computational Linguistics: HLT-NAACL 2004

pdf bib
Parsing Arguments of Nominalizations in English and Chinese
Sameer Pradhan | Honglin Sun | Wayne Ward | James H. Martin | Daniel Jurafsky
Proceedings of HLT-NAACL 2004: Short Papers

2001

pdf bib
University of Colorado Dialogue Systems for Travel and Navigation
B. Pellom | W. Ward | J. Hansen | R. Cole | K. Hacioglu | J. Zhang | X. Yu | S. Pradhan
Proceedings of the First International Conference on Human Language Technology Research