Proceedings of the. Eighth Conference on Computational Natural Language Learning
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1 Proceedings of the Eighth Conference on Computational Natural Language Learning Hwee Tou Ng and Ellen Riloff (editors) Held in cooperation with HLT-NAACL 2004 May 6 7, 2004 Boston, Massachusetts
2 Proceedings of the Eighth Conference on Computational Natural Language Learning Hwee Tou Ng and Ellen Riloff (editors) Held in cooperation with HLT-NAACL 2004 May 6 7, 2004 Boston, Massachusetts
3 Copyright c 2004 The Association for Computational Linguistics ISBN: Order copies of this and other ACL proceedings from: Association for Computational Linguistics 3 Landmark Center East Stroudsburg, PA USA Phone: Fax: acl@aclweb.org
4 SIGNLL Computational Natural Language Learning (CoNLL-2004) May 6-7, 2004
5 INVITED SPEAKERS: Christopher Manning, Stanford University (USA) Martha Palmer, University of Pennsylvania (USA) PROGRAM COMMITTEE: Hwee Tou Ng, National University of Singapore (Singapore), Co-Chair Ellen Riloff, University of Utah (USA), Co-Chair Xavier Carreras, UPC (Spain), Shared Task Co-Chair Lluís Màrquez, UPC (Spain), Shared Task Co-Chair Steven Abney, University of Michigan (USA) Regina Barzilay, Massachusetts Institute of Technology (USA) Thorsten Brants, Google Inc (USA) Claire Cardie, Cornell University (USA) Eugene Charniak, Brown University (USA) James Cussens, University of York (UK) Walter Daelemans, University of Antwerp (Belgium) Ido Dagan, Bar Ilan University / LingoMotors (Israel) Radu Florian, IBM (USA) Ulf Hermjakob, USC Information Sciences Institute (USA) Hang Li, Microsoft Research Asia (China) Dekang Lin, University of Alberta (Canada) Diane Litman, University of Pittsburgh (USA) Yuji Matsumoto, Nara Institute of Science and Technology (Japan) Rada Mihalcea, University of North Texas (USA) Raymond Mooney, University of Texas at Austin (USA) John Nerbonne, University of Groningen (Netherlands) Grace Ngai, Hong Kong Polytechnic University (Hong Kong) Franz Josef Och, USC Information Sciences Institute (USA) Miles Osborne, University of Edinburgh (UK) Ted Pedersen, University of Minnesota, Duluth (USA) David Pierce, SUNY Buffalo (USA) David Powers, Flinders University (Australia) Dan Roth, University of Illinois at Urbana-Champaign (USA) Erik Tjong Kim Sang, University of Antwerp (Belgium) Anoop Sarkar, Simon Fraser University (Canada) Suzanne Stevenson, University of Toronto (Canada) Cynthia Thompson, University of Utah (USA) Antal van den Bosch, Tilburg University (Netherlands) Janyce Wiebe, University of Pittsburgh (USA) Additional Reviewers: Yunbo Cao, Microsoft Research Asia (China) Ruifang Ge, University of Texas at Austin (USA) Lluís Padró, Technical University of Catalonia (Spain) Mihai Surdeanu, Technical University of Catalonia (Spain) Yuk Wah Wong, University of Texas at Austin (USA)
6 SHARED TASK COORDINATORS: Xavier Carreras, UPC (Spain) Lluís Màrquez, UPC (Spain) CONFERENCE WEBSITE:
7 PREFACE The 2004 Conference on Computational Natural Language Learning (CoNLL-2004) is the eighth in a series of meetings organized by SIGNLL, the ACL special interest group on natural language learning. This year s CoNLL will be held in Boston, Massachusetts, USA on May 6 and 7, in conjunction with the HLT-NAACL 2004 Conference. This is the first time that CoNLL will be held in the USA. The annual CoNLL meeting is intended to address all aspects of computational natural language learning. We have an exciting program this year, thanks to the many good submissions that we received. In all, 23 papers were submitted to the main session, of which 11 were selected by the program committee to be presented at the conference. They represent cutting-edge research on computational natural language learning. In keeping with the unique tradition of CoNLL, we also have a shared task session this year, on semantic role labeling, which is a topic of growing interest in the field. The shared task was coordinated by Xavier Carreras and Lluís Màrquez. Common training and test data were made available to all participants, who had to build their learning system and test it on this task. We received enthusiastic responses from many research groups, and the shared task papers contain descriptions of the ten participating systems and their results. This year s CoNLL also features two invited presentations, one by Christopher Manning on what the future holds for computational language learning, and one by Martha Palmer on semantic role labeling, the topic of this year s shared task. Our program committee and additional reviewers have spent much time carefully reviewing the submitted papers, for which we are most grateful. We would also like to thank the HLT-NAACL 2004 conference organizers for helping us with the local organization. And a special thanks for the enthusiastic and capable work of Xavier Carreras and Lluís Màrquez in organizing and running the semantic role labeling shared task. We wish you an enjoyable time attending CoNLL-2004! Hwee Tou Ng & Ellen Riloff (editors) May 2004
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10 CONFERENCE PROGRAM Thursday, May 6 9:00-9:05 Welcome (Hwee Tou Ng and Ellen Riloff) Session 1: Inference and Semantics 9:05-9:35 A Linear Programming Formulation for Global Inference in Natural Language Tasks Dan Roth and Wen-tau Yih 9:35-10:05 Semantic Lexicon Construction: Learning from Unlabeled Data via Spectral Analysis Rie Kubota Ando 10:05-10:35 A Semantic Kernel for Predicate Argument Classification Alessandro Moschitti and Cosmin Adrian Bejan 10:35-11:00 Break Session 2: Word Sense Disambiguation 11:00-11:30 Combining Lexical and Syntactic Features for Supervised Word Sense Disambiguation Saif Mohammad and Ted Pedersen 11:30-12:00 Co-training and Self-training for Word Sense Disambiguation Rada Mihalcea 12:00-12:30 Word Sense Discrimination by Clustering Contexts in Vector and Similarity Spaces Amruta Purandare and Ted Pedersen 12:30-14:00 Lunch Session 3: Parsing 14:00-14:30 Memory-Based Dependency Parsing Joakim Nivre, Johan Hall and Jens Nilsson Invited Talk 14:30-15:30 Language Learning: Beyond Thunderdome Christopher D. Manning 15:30-16:00 Break
11 CONFERENCE PROGRAM Thursday, May 6 Session 4: Text Classification 16:00-16:30 Modeling Category Structures with a Kernel Function Hiroya Takamura, Yuji Matsumoto and Hiroyasu Yamada 16:30-17:00 A Comparison of Manual and Automatic Constructions of Category Hierarchy for Classifying Large Corpora Fumiyo Fukumoto and Yoshimi Suzuki 17:00-17:30 SIGNLL Business Meeting Friday, May 7 Session 5: Syntax and Semantics 9:30-10:00 Thesauruses for Prepositional Phrase Attachment Mark McLauchlan 10:00-10:30 Calculating Semantic Distance between Word Sense Probability Distributions Vivian Tsang and Suzanne Stevenson 10:30-11:00 Break Invited Talk 11:00-12:00 Putting Meaning into Your Trees Martha Palmer 12:00-13:30 Lunch Shared Task Session 13:30-14:00 Introduction to the CoNLL-2004 Shared Task: Semantic Role Labeling Xavier Carreras and Lluís Màrquez 14:00-14:10 Semantic Role Labelling With Chunk Sequences Ulrike Baldewein, Katrin Erk, Sebastian Padó and Detlef Prescher 14:10-14:20 Memory-based semantic role labeling: Optimizing features, algorithm, and output Antal van den Bosch, Sander Canisius, Walter Daelemans, Iris Hendrickx and Erik Tjong Kim Sang 14:20-14:30 Hierarchical Recognition of Propositional Arguments with Perceptrons Xavier Carreras, Lluís Màrquez and Grzegorz Chrupała 14:30-14:40 Semantic Role Labeling by Tagging Syntactic Chunks Kadri Hacioglu, Sameer Pradhan, Wayne Ward, James H. Martin and Daniel Jurafsky
12 CONFERENCE PROGRAM Friday, May 7 14:40-14:50 A transformation-based approach to argument labeling Derrick Higgins 14:50-15:00 A Memory-Based Approach for Semantic Role Labeling Beata Kouchnir 15:00-15:10 Semantic Role Labeling using Maximum Entropy Model Joon-Ho Lim, Young-Sook Hwang, So-Young Park and Hae-Chang Rim 15:10-15:20 Two-Phase Semantic Role Labeling based on Support Vector Machines Kyung-Mi Park, Young-Sook Hwang and Hae-Chang Rim 15:20-16:00 Break 16:00-16:10 Semantic Role Labeling Via Generalized Inference Over Classifiers Vasin Punyakanok, Dan Roth, Wen-tau Yih, Dav Zimak and Yuancheng Tu 16:10-16:20 Learning Transformation Rules for Semantic Role Labeling Ken Williams, Christopher Dozier and Andrew McCulloh 16:20-17:15 Summary and Discussion on Shared Task
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