{"type":"ScholarlyArticle","title":"Event Coreference Resolution: A Survey of Two Decades of Research","authors":[{"name":"Jing Lu","slug":"jing-lu","given":"Jing","family":"Lu","affiliation":"Human Language Technology Research Institute University of Texas at Dallas Richardson , TX 75083-0688"},{"name":"Vincent Ng","slug":"vincent-ng","given":"Vincent","family":"Ng","affiliation":"Human Language Technology Research Institute University of Texas at Dallas Richardson , TX 75083-0688"}],"abstract":"Recent years have seen a gradual shift of focus from entity-based tasks to event-based tasks in information extraction research. Being a core event-based task, event coreference resolution is less studied but arguably more challenging than entity coreference resolution. This paper provides an overview of the major milestones made in event coreference research since its inception two decades ago.","doi":"10.24963/ijcai.2018/773","url":"https://ijcai.org/proceedings/2018/773","pdf":"https://ijcai.org/proceedings/2018/0773.pdf","markdown":"https://ijcai.org/proceedings/2018/773.md","bibtex":"https://ijcai.org/proceedings/2018/bibtex/773","volume":{"slug":"2018","title":"Proceedings of the Twenty-Seventh International Joint Conference on Artificial Intelligence","short_title":"IJCAI 2018","url":"https://ijcai.org/proceedings/2018/","year":2018,"location":"Stockholm","dates":"13-19 July 2018","editors":"Jérôme Lang","isbn":"978-0-9992411-2-7","publisher":"International Joint Conferences on Artificial Intelligence Organization","doi_prefix":"10.24963/ijcai.2018"},"section":"Survey track","track":"Survey track","number":773,"pages":{"first":5479,"last":5486},"keywords":["Natural Language Processing: Natural Language Processing","Natural Language Processing: Information Extraction"],"videos":[],"references":[{"position":1,"raw":"[Ahn, 2006] David Ahn. The stages of event extraction. In Pro- ceedings of the COLING/ACL Workshop on Annotating and Rea- soning about Time and Events, pages 1-8, 2006.","title":"The stages of event extraction","authors":"David Ahn","year":"2006","venue":"Proceedings of the COLING/ACL Workshop on Annotating and Reasoning about Time and Events","doi":null,"url":null,"internal_url":null},{"position":2,"raw":"[Allan et al., 1998] James Allan, Jaime G. Carbonell, George Dod- dington, Jonathan Yamron, and Yiming Yang. Topic detection and tracking pilot study final report. In Proceedings of the Broad- cast News Understanding and Transcription Workshop, pages 194-218, 1998.","title":"Topic detection and tracking pilot study final report","authors":"James Allan, Jaime G Carbonell, George Doddington, Jonathan Yamron, Yiming Yang","year":"1998","venue":"Proceedings of the Broadcast News Understanding and Transcription Workshop","doi":null,"url":null,"internal_url":null},{"position":3,"raw":"[Araki and Mitamura, 2015] Jun Araki and Teruko Mitamura. Joint event trigger identification and event coreference resolution with structured perceptron. In Proceedings of the 2015 Conference on Empirical Methods in Natural Language Processing, pages 2074-2080, 2015.","title":"Joint event trigger identification and event coreference resolution with structured perceptron","authors":"Mitamura Araki, Jun Araki, Teruko Mitamura","year":"2015","venue":"Proceedings of the 2015 Conference on Empirical Methods in Natural Language Processing","doi":null,"url":null,"internal_url":null},{"position":4,"raw":"[Araki et al., 2014] Jun Araki, Eduard Hovy, and Teruko Mitamura. Evaluation for partial event coreference. In Proceedings of the Second Workshop on EVENTS: Definition, Detection, Corefer- ence, and Representation, pages 68-76, 2014.","title":"Evaluation for partial event coreference","authors":"Araki","year":"2014","venue":"Proceedings of the Second Workshop on EVENTS: Definition, Detection, Coreference, and Representation","doi":null,"url":null,"internal_url":null},{"position":5,"raw":"[Bagga and Baldwin, 1998] Amit Bagga and Breck Baldwin. Al- gorithms for scoring coreference chains. In Proceedings of the LREC Workshop on Linguistic Coreference, pages 563-566, 1998.","title":"Algorithms for scoring coreference chains","authors":"Amit Bagga, Breck Baldwin","year":"1998","venue":"Proceedings of the LREC Workshop on Linguistic Coreference","doi":null,"url":null,"internal_url":null},{"position":6,"raw":"[Bejan and Harabagiu, 2008] Cosmin Adrian Bejan and Sanda Harabagiu. A linguistic resource for discovering event structures and resolving event coreference. In Proceedings of the Sixth Lan- guage Resources and Evaluation Conference, pages 2881-2887, 2008.","title":"A linguistic resource for discovering event structures and resolving event coreference","authors":"Adrian Cosmin, Sanda Bejan, Harabagiu","year":"2008","venue":"Proceedings of the Sixth Language Resources and Evaluation Conference","doi":null,"url":null,"internal_url":null},{"position":7,"raw":"[Bejan and Harabagiu, 2014] Cosmin Adrian Bejan and Sanda Harabagiu. Unsupervised event coreference resolution. Com- putational Linguistics, 40(2):311-347, 2014.","title":"Unsupervised event coreference resolution","authors":"Adrian Cosmin, Sanda Bejan, Harabagiu","year":"2014","venue":"Computational Linguistics","doi":null,"url":null,"internal_url":null},{"position":8,"raw":"[Chen and Ji, 2009] Zheng Chen and Heng Ji. Graph-based event coreference resolution. In Proceedings of the ACL-IJCNLP Workshop on Graph-based Methods for Natural Language Pro- cessing, pages 54-57, 2009.","title":"Graph-based event coreference resolution","authors":"Zheng Chen, Heng Ji","year":"2009","venue":"Proceedings of the ACL-IJCNLP Workshop on Graph-based Methods for Natural Language Processing","doi":null,"url":null,"internal_url":null},{"position":9,"raw":"[Chen and Ng, 2014] Chen Chen and Vincent Ng. SinoCorefer- encer: An end-to-end Chinese event coreference resolver. In Proceedings of the Ninth Language Resources and Evaluation Conference, pages 4532-4538, 2014.","title":"SinoCoreferencer: An end-to-end Chinese event coreference resolver","authors":"Chen Chen, Vincent Ng","year":"2014","venue":"Proceedings of the Ninth Language Resources and Evaluation Conference","doi":null,"url":null,"internal_url":null},{"position":10,"raw":"[Chen and Ng, 2015] Chen Chen and Vincent Ng. Chinese event coreference resolution: An unsupervised probabilistic model ri- valing supervised resolvers. In Proceedings of Human Lan- guage Technologies: The 2015 Conference of the North Amer- ican Chapter of the Association for Computational Linguistics, pages 1097-1107, 2015.","title":"Chinese event coreference resolution: An unsupervised probabilistic model rivaling supervised resolvers","authors":"Chen Chen, Vincent Ng","year":"2015","venue":"Proceedings of Human Language Technologies: The 2015 Conference of the North American Chapter of the Association for Computational Linguistics","doi":null,"url":null,"internal_url":null},{"position":11,"raw":"[Chen and Ng, 2016] Chen Chen and Vincent Ng. Joint infer- ence over a lightly supervised information extraction pipeline: Towards event coreference resolution for resource-scarce lan- guages. In Proceedings of the 30th AAAI Conference on Artificial Intelligence, pages 2913-2920, 2016.","title":"Joint inference over a lightly supervised information extraction pipeline: Towards event coreference resolution for resource-scarce languages","authors":"Chen Chen, Vincent Ng","year":"2016","venue":"Proceedings of the 30th AAAI Conference on Artificial Intelligence","doi":null,"url":null,"internal_url":null},{"position":12,"raw":"[Chen et al., 2009] Zheng Chen, Heng Ji, and Robert Haralick. A pairwise event coreference model, feature impact and evaluation for event coreference resolution. In Proceedings of the Workshop on Events in Emerging Text Types, number 3, pages 17-22, 2009.","title":"A pairwise event coreference model, feature impact and evaluation for event coreference resolution","authors":"Zheng Chen, Ji Heng, Robert Haralick","year":"2009","venue":"Proceedings of the Workshop on Events in Emerging Text Types","doi":null,"url":null,"internal_url":null},{"position":13,"raw":"[Chen et al., 2011] Bin Chen, Jian Su, Sinno Jialin Pan, and Chew Lim Tan. A unified event coreference resolution by in- tegrating multiple resolvers. In Proceedings of the Fifth Interna- tional Joint Conference on Natural Language Processing, pages 102-110, 2011.","title":"A unified event coreference resolution by integrating multiple resolvers","authors":"Bin Chen, Jian Su, Sinno Jialin Pan, Chew Lim, Tan","year":"2011","venue":"Proceedings of the Fifth International Joint Conference on Natural Language Processing","doi":null,"url":null,"internal_url":null},{"position":14,"raw":"[Choubey and Huang, 2017] Prafulla Kumar Choubey and Ruihong Huang. Event coreference resolution by iteratively unfolding inter-dependencies among events. In Proceedings of the 2017 Conference on Empirical Methods in Natural Language Process- ing, pages 2124-2133, 2017.","title":"Event coreference resolution by iteratively unfolding inter-dependencies among events","authors":"Prafulla Kumar, Choubey, Ruihong Huang","year":"2017","venue":"Proceedings of the 2017 Conference on Empirical Methods in Natural Language Processing","doi":null,"url":null,"internal_url":null},{"position":15,"raw":"[Cybulska and Vossen, 2014] Agata Cybulska and Piek Vossen. Us- ing a sledgehammer to crack a nut? Lexical diversity and event coreference resolution. In Proceedings of the Ninth Language Resources and Evaluation Conference, pages 4545-4552, 2014.","title":"Using a sledgehammer to crack a nut? Lexical diversity and event coreference resolution","authors":"Agata Cybulska, Piek Vossen","year":"2014","venue":"Proceedings of the Ninth Language Resources and Evaluation Conference","doi":null,"url":null,"internal_url":null},{"position":16,"raw":"[Cybulska and Vossen, 2015] Agata Cybulska and Piek Vossen. Translating granularity of event slots into features for event coref- erence resolution. In Proceedings of the Third Workshop on EVENTS: Definition, Detection, Coreference, and Representa- tion, pages 1-10, 2015.","title":"Translating granularity of event slots into features for event coreference resolution","authors":"Agata Cybulska, Piek Vossen","year":"2015","venue":"Proceedings of the Third Workshop on EVENTS: Definition, Detection, Coreference, and Representation","doi":null,"url":null,"internal_url":null},{"position":17,"raw":"[De Marneffe et al., 2008] Marie-Catherine De Marneffe, Anna N. Rafferty, and Christopher D. Manning. Finding contradictions in text. In Proceedings of the 46th Annual Meet- ing of the Association for Computational Linguistics: Human Language Technologies, pages 1039-1047, 2008.","title":"Finding contradictions in text","authors":"Marie-Catherine De Marneffe, Anna N Rafferty, Christopher D Manning","year":"2008","venue":"Proceedings of the 46th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies","doi":null,"url":null,"internal_url":null},{"position":18,"raw":"[Denis and Baldridge, 2008] Pascal Denis and Jason Baldridge. Specialized models and ranking for coreference resolution. In Proceedings of the 2008 Conference on Empirical Methods in Natural Language Processing, pages 660-669, 2008.","title":"Specialized models and ranking for coreference resolution","authors":"Denis, Baldridge, Pascal Denis, Jason Baldridge","year":"2008","venue":"Proceedings of the 2008 Conference on Empirical Methods in Natural Language Processing","doi":null,"url":null,"internal_url":null},{"position":19,"raw":"[Duncan et al., 2017] Chase Duncan, Liang-Wei Chan, Haoruo Peng, Hao Wu, Shyam Upadhyay, Nitish Gupta, Chen-Tse Tsai, Mark Sammons, and Dan Roth. UI CCG TAC-KBP2017 submis- sions: Entity discovery and linking, and event nugget detection and co-reference. In Proceedings of the Text Analysis Confer- ence, 2017.","title":"UI CCG TAC-KBP2017 submissions: Entity discovery and linking, and event nugget detection and co-reference","authors":"Chase Duncan, Liang-Wei Chan, Haoruo Peng, Hao Wu, Shyam Upadhyay, Nitish Gupta, Chen-Tse Tsai, Mark Sammons, Dan Roth","year":"2017","venue":"Proceedings of the Text Analysis Conference","doi":null,"url":null,"internal_url":null},{"position":20,"raw":"[Durrett and Klein, 2013] Greg Durrett and Dan Klein. Easy victo- ries and uphill battles in coreference resolution. In Proceedings of the 2013 Conference on Empirical Methods in Natural Language Processing, pages 1971-1982, 2013.","title":"Easy victories and uphill battles in coreference resolution","authors":"Klein Durrett, Greg Durrett, Dan Klein","year":"2013","venue":"Proceedings of the 2013 Conference on Empirical Methods in Natural Language Processing","doi":null,"url":null,"internal_url":null},{"position":21,"raw":"[Durrett and Klein, 2014] Greg Durrett and Dan Klein. A joint model for entity analysis: Coreference, typing, and linking. Transactions of the Association for Computational Linguistics, 2:477-490, 2014.","title":"A joint model for entity analysis: Coreference, typing, and linking","authors":"Klein Durrett, Greg Durrett, Dan Klein","year":"2014","venue":"Transactions of the Association for Computational Linguistics","doi":null,"url":null,"internal_url":null},{"position":22,"raw":"[Hovy et al., 2013] Eduard Hovy, Teruko Mitamura, Felisa Verdejo ETSI Informática, Juan del Rosal, Jun Araki, and Andrew Philpot. Events are not simple: Identity, non-identity, and quasi- identity. In Proceedings of the the First Workshop on EVENTS: Definition, Detection, Coreference, and Representation, pages 21-28, 2013.","title":"Events are not simple: Identity, non-identity, and quasiidentity","authors":"Eduard Hovy, Teruko Mitamura, Felisa Verdejo, Etsi Informática, Juan Del Rosal, Jun Araki, Andrew Philpot","year":"2013","venue":"Proceedings of the the First Workshop on EVENTS: Definition, Detection, Coreference, and Representation","doi":null,"url":null,"internal_url":null},{"position":23,"raw":"[Humphreys et al., 1997] Kevin Humphreys, Robert Gaizauskas, and Saliha Azzam. Event coreference for information extraction. In Proceedings of the ACL/EACL Workshop on Operational Fac- tors in Practical, Robust Anaphora Resolution for Unrestricted Texts, pages 75-81, 1997.","title":"Event coreference for information extraction","authors":"Kevin Humphreys, Robert Gaizauskas, Saliha Azzam","year":"1997","venue":"Proceedings of the ACL/EACL Workshop on Operational Factors in Practical, Robust Anaphora Resolution for Unrestricted Texts","doi":null,"url":null,"internal_url":null},{"position":24,"raw":"[Ji and Grishman, 2011] Heng Ji and Ralph Grishman. Knowledge base population: Successful approaches and challenges. In Pro- ceedings of the 49th Annual Meeting of the Association for Com- putational Linguistics: Human Language Technologies, pages 1148-1158, 2011.","title":"Knowledge base population: Successful approaches and challenges","authors":"Ji, Grishman ; Heng, Ji, Ralph Grishman","year":"2011","venue":"Proceedings of the 49th Annual Meeting of the Association for Com-putational Linguistics: Human Language Technologies","doi":null,"url":null,"internal_url":null},{"position":25,"raw":"[Jiang et al., 2017] Shanshan Jiang, Yihan Li, Tianyi Qin, Qian Meng, and Bin Dong. SRCB entity discovery and linking (EDL) and event nugget systems for TAC 2017. In Proceedings of the Text Analysis Conference, 2017.","title":"SRCB entity discovery and linking (EDL) and event nugget systems for TAC 2017","authors":"Shanshan Jiang, Yihan Li, Tianyi Qin, Qian Meng, Bin Dong","year":"2017","venue":"Proceedings of the Text Analysis Conference","doi":null,"url":null,"internal_url":null},{"position":26,"raw":"[LDC, 2005] LDC. ACE (Automatic Content Extraction) English annotation guidelines for events. Technical report, Linguistic Data Consortium, 2005.","title":"LDC. ACE (Automatic Content Extraction) English annotation guidelines for events","authors":"Ldc","year":"2005","venue":"Linguistic Data Consortium","doi":null,"url":null,"internal_url":null},{"position":27,"raw":"[Lee et al., 2012] Heeyoung Lee, Marta Recasens, Angel Chang, Mihai Surdeanu, and Dan Jurafsky. Joint entity and event coreference resolution across documents. In Proceedings of the 2012 Joint Conference on Empirical Methods in Natural Lan- guage Processing and Computational Natural Language Learn- ing, pages 489-500, 2012.","title":"Joint entity and event coreference resolution across documents","authors":"Lee","year":"2012","venue":"Proceedings of the 2012 Joint Conference on Empirical Methods in Natural Language Processing and Computational Natural Language Learning","doi":null,"url":null,"internal_url":null},{"position":28,"raw":"[Lee et al., 2013] Heeyoung Lee, Angel Chang, Yves Peirsman, Nathanael Chambers, Mihai Surdeanu, and Dan Jurafsky. Deterministic coreference resolution based on entity-centric, precision-ranked rules. Computational Linguistics, 39(4):885- 916, 2013.","title":"Deterministic coreference resolution based on entity-centric, precision-ranked rules","authors":"Lee","year":"2013","venue":"Computational Linguistics","doi":null,"url":null,"internal_url":null},{"position":29,"raw":"[Li et al., 2006] Wenjie Li, Mingli Wu, Qin Lu, Wei Xu, and Chunfa Yuan. Extractive summarization using inter-and intra- event relevance. In Proceedings of the 21st International Confer- ence on Computational Linguistics and the 44th Annual Meeting of the Association for Computational Linguistics, pages 369-376, 2006.","title":"Extractive summarization using inter-and intraevent relevance","authors":"Wenjie Li, Mingli Wu, Qin Lu, Wei Xu, Chunfa Yuan","year":"2006","venue":"Proceedings of the 21st International Conference on Computational Linguistics and the 44th Annual Meeting of the Association for Computational Linguistics","doi":null,"url":null,"internal_url":null},{"position":30,"raw":"[Liu et al., 2014] Zhengzhong Liu, Jun Araki, Eduard Hovy, and Teruko Mitamura. Supervised within-document event corefer- ence using information propagation. In Proceedings of the Ninth Language Resources and Evaluation Conference, pages 4539- 4544, 2014.","title":"Supervised within-document event coreference using information propagation","authors":"Liu","year":"2014","venue":"Proceedings of the Ninth Language Resources and Evaluation Conference","doi":null,"url":null,"internal_url":null},{"position":31,"raw":"[Lu and Ng, 2016] Jing Lu and Vincent Ng. Event coreference res- olution with multi-pass sieves. In Proceedings of the 10th Lan- guage Resources and Evaluation Conference, pages 3996-4003, 2016.","title":"Event coreference resolution with multi-pass sieves","authors":"Lu, Ng ; ] Jing Lu, Vincent Ng","year":"2016","venue":"Proceedings of the 10th Language Resources and Evaluation Conference","doi":null,"url":null,"internal_url":null},{"position":32,"raw":"[Lu and Ng, 2017a] Jing Lu and Vincent Ng. Joint learning for event coreference resolution. In Proceedings of the 55th Annual Meeting of the Association for Computational Linguistics (Vol- ume 1: Long Papers), pages 90-101, 2017.","title":"Joint learning for event coreference resolution","authors":"Lu, Ng, Jing Lu, Vincent Ng","year":"2017","venue":"Proceedings of the 55th Annual Meeting of the Association for Computational Linguistics","doi":null,"url":null,"internal_url":null},{"position":33,"raw":"[Lu and Ng, 2017b] Jing Lu and Vincent Ng. Learning antecedent structures for event coreference resolution. In Proceedings of the 16th IEEE International Conference on Machine Learning and Applications, pages 113-118, 2017.","title":"Learning antecedent structures for event coreference resolution","authors":"Lu, Ng, Jing Lu, Vincent Ng","year":"2017","venue":"Proceedings of the 16th IEEE International Conference on Machine Learning and Applications","doi":null,"url":null,"internal_url":null},{"position":34,"raw":"[Lu and Ng, 2017c] Jing Lu and Vincent Ng. UTD's event nugget detection and coreference system at KBP 2017. In Proceedings of the Text Analysis Conference, 2017.","title":"UTD's event nugget detection and coreference system at KBP 2017","authors":"Lu, Ng, Jing Lu, Vincent Ng","year":"2017","venue":"Proceedings of the Text Analysis Conference","doi":null,"url":null,"internal_url":null},{"position":35,"raw":"[Lu et al., 2016] Jing Lu, Deepak Venugopal, Vibhav Gogate, and Vincent Ng. Joint inference for event coreference resolution. In Proceedings of the 26th International Conference on Computa- tional Linguistics, pages 3264-3275, 2016.","title":"Joint inference for event coreference resolution","authors":"Jing Lu, Deepak Venugopal, Vibhav Gogate, Vincent Ng","year":"2016","venue":"Proceedings of the 26th International Conference on Computational Linguistics","doi":null,"url":null,"internal_url":null},{"position":36,"raw":"[Luo, 2005] Xiaoqiang Luo. On coreference resolution perfor- mance metrics. In Proceedings of the Conference on Human Lan- guage Technology and Empirical Methods in Natural Language Processing, pages 25-32, 2005.","title":"On coreference resolution performance metrics","authors":"Xiaoqiang Luo","year":"2005","venue":"Proceedings of the Conference on Human Language Technology and Empirical Methods in Natural Language Processing","doi":null,"url":null,"internal_url":null},{"position":37,"raw":"[McConky et al., 2012] Katie McConky, Rakesh Nagi, Moises Su- dit, and William Hughes. Improving event co-reference by con- text extraction and dynamic feature weighting. In Proceedings of the 2012 IEEE International Multi-Disciplinary Conference on Cognitive Methods in Situation Awareness and Decision Support, pages 38-43, 2012. [MUC6, 1995] MUC-6. Proceedings of the Sixth Message Under- standing Conference. 1995. [MUC7, 1998] MUC-7. Proceedings of the Seventh Message Un- derstanding Conference. 1998.","title":"Improving event co-reference by context extraction and dynamic feature weighting","authors":"Katie Mcconky, Rakesh Nagi, Moises Sudit, William Hughes","year":"1998","venue":"Proceedings of the 2012 IEEE International Multi-Disciplinary Conference on Cognitive Methods in Situation Awareness and Decision Support","doi":null,"url":null,"internal_url":null},{"position":38,"raw":"[Narayanan and Harabagiu, 2004] Srini Narayanan and Sanda Harabagiu. Question answering based on semantic struc- tures. In Proceedings of the 20th International Conference on Computational Linguistics, pages 693-701, 2004.","title":"Question answering based on semantic structures","authors":"Srini Narayanan, Sanda Harabagiu","year":"2004","venue":"Proceedings of the 20th International Conference on Computational Linguistics","doi":null,"url":null,"internal_url":null},{"position":39,"raw":"[Ng and Cardie, 2002] Vincent Ng and Claire Cardie. Improving machine learning approaches to coreference resolution. In Pro- ceedings of the 40th Annual Meeting of the Association for Com- putational Linguistics, pages 104-111, 2002.","title":"Improving machine learning approaches to coreference resolution","authors":"Cardie ; ] Vincent Ng, Claire Ng, Cardie","year":"2002","venue":"Proceedings of the 40th Annual Meeting of the Association for Computational Linguistics","doi":null,"url":null,"internal_url":null},{"position":40,"raw":"[Nguyen et al., 2016] Thien Huu Nguyen, Adam Meyers, and Ralph Grishman. New York University 2016 system for KBP event nugget: A deep learning approach. In Proceedings of the Text Analysis Conference, 2016.","title":"New York University 2016 system for KBP event nugget: A deep learning approach","authors":"Thien Huu Nguyen, Adam Meyers, Ralph Grishman","year":"2016","venue":"Proceedings of the Text Analysis Conference","doi":null,"url":null,"internal_url":null},{"position":41,"raw":"[Peng et al., 2016] Haoruo Peng, Yangqi Song, and Dan Roth. Event detection and co-reference with minimal supervision. In Proceedings of the 2016 Conference on Empirical Methods in Natural Language Processing, pages 392-402, 2016.","title":"Event detection and co-reference with minimal supervision","authors":"Peng","year":"2016","venue":"Proceedings of the 2016 Conference on Empirical Methods in Natural Language Processing","doi":null,"url":null,"internal_url":null},{"position":42,"raw":"[Pradhan et al., 2007] Sameer S. Pradhan, Lance Ramshaw, Ralph Weischedel, Jessica MacBride, and Linnea Micciulla. Un- restricted coreference: Identifying entities and events in OntoNotes. In Proceedings of the First IEEE International Con- ference on Semantic Computing, pages 446-453, 2007.","title":"Unrestricted coreference: Identifying entities and events in OntoNotes","authors":"S Sameer, Lance Pradhan, Ralph Ramshaw, Jessica Weischedel, Linnea Macbride, Micciulla","year":"2007","venue":"Proceedings of the First IEEE International Conference on Semantic Computing","doi":null,"url":null,"internal_url":null},{"position":43,"raw":"[Pustejovsky et al., 2003] James Pustejovsky, José Castaño, Robert Ingria, Roser Saurí, Robert Gaizauskas, Andrea Setzer, and Gra- ham Katz. TimeML: Robust specification of event and tempo- ral expressions in text. In Proceedings of the Fifth International Workshop on Computational Semantics, 2003.","title":"TimeML: Robust specification of event and temporal expressions in text","authors":"James Pustejovsky, José Castaño, Robert Ingria, Roser Saurí, Robert Gaizauskas, Andrea Setzer, Graham Katz","year":"2003","venue":"Proceedings of the Fifth International Workshop on Computational Semantics","doi":null,"url":null,"internal_url":null},{"position":44,"raw":"[Recasens and Hovy, 2011] Marta Recasens and Eduard Hovy. BLANC: Implementing the Rand Index for coreference evalua- tion. Natural Language Engineering, 17(4):485-510, 2011.","title":"BLANC: Implementing the Rand Index for coreference evaluation","authors":"Marta Recasens, Eduard Hovy","year":"2011","venue":"Natural Language Engineering","doi":null,"url":null,"internal_url":null},{"position":45,"raw":"[Sangeetha and Arock, 2012] Satyan Sangeetha and Michael Arock. Event coreference resolution using mincut based graph clustering. In Proceedings of the Fourth International Workshop on Computer Networks & Communications, pages 253-260, 2012.","title":"Event coreference resolution using mincut based graph clustering","authors":"Arock Sangeetha, Satyan Sangeetha, Michael Arock","year":"2012","venue":"Proceedings of the Fourth International Workshop on Computer Networks & Communications","doi":null,"url":null,"internal_url":null},{"position":46,"raw":"[Song et al., 2015] Zhiyi Song, Ann Bies, Stephanie Strassel, Tom Riese, Justin Mott, Joe Ellis, Jonathan Wright, Seth Kulick, Neville Ryant, and Xiaoyi Ma. From Light to Rich ERE: An- notation of entities, relations, and events. In Proceedings of the Third Workshop on EVENTS: Definition, Detection, Coreference, and Representation, pages 89-98, 2015.","title":"From Light to Rich ERE: Annotation of entities, relations, and events","authors":"Zhiyi Song, Ann Bies, Stephanie Strassel, Tom Riese, Justin Mott, Joe Ellis, Jonathan Wright, Seth Kulick, Neville Ryant, Xiaoyi Ma","year":"2015","venue":"Proceedings of the Third Workshop on EVENTS: Definition, Detection, Coreference, and Representation","doi":null,"url":null,"internal_url":null},{"position":47,"raw":"[Soon et al., 2001] Wee Meng Soon, Hwee Tou Ng, Daniel Chung Yong Lim. A machine learning approach to coreference resolu- tion of noun phrases. Computational Linguistics, 27(4):521-544, 2001.","title":"A machine learning approach to coreference resolution of noun phrases","authors":"Wee Meng Soon, Tou Hwee, Daniel Ng, Yong Chung, Lim","year":"2001","venue":"Computational Linguistics","doi":null,"url":null,"internal_url":null},{"position":48,"raw":"[Vilain et al., 1995] Marc Vilain, John Burger, John Aberdeen, Dennis Connolly, and Lynette Hirschman. A model-theoretic coreference scoring scheme. In Proceedings of the Sixth Mes- sage Understanding Conference, pages 45-52, 1995.","title":"A model-theoretic coreference scoring scheme","authors":"Marc Vilain, John Burger, John Aberdeen, Dennis Connolly, Lynette Hirschman","year":"1995","venue":"Proceedings of the Sixth Message Understanding Conference","doi":null,"url":null,"internal_url":null},{"position":49,"raw":"[Yang et al., 2015] Bishan Yang, Claire Cardie, and Peter Frazier. A hierarchical distance-dependent Bayesian model for event coreference resolution. Transactions of the Association for Com- putational Linguistics, 3:517-528, 2015.","title":"A hierarchical distance-dependent Bayesian model for event coreference resolution","authors":"Bishan Yang, Claire Cardie, Peter Frazier","year":"2015","venue":"Transactions of the Association for Computational Linguistics","doi":null,"url":null,"internal_url":null},{"position":50,"raw":"[Yu et al., 2016] Dian Yu, Xiaoman Pan, Boliang Zhang, Lifu Huang, Di Lu, Spencer Whitehead, and Heng Ji. RPI BLENDER TAC-KBP2016 system description. In Proceedings of the Text Analysis Conference, 2016.","title":"RPI BLENDER TAC-KBP2016 system description","authors":"Dian Yu, Xiaoman Pan, Boliang Zhang, Lifu Huang, Di Lu, Spencer Whitehead, Heng Ji","year":"2016","venue":"Proceedings of the Text Analysis Conference","doi":null,"url":null,"internal_url":null}],"license_note":"Copyright International Joint Conferences on Artificial Intelligence."}