24th Annual Meeting of the Association for Computational Linguistics

24th Annual Meeting of the Association for Computational Linguistics Proceedings of the Conference 10-13 July 1986 Columbia University New York, New York, USA Published by the Association for Computational Linguistics ~~ 1986, Association for Computational Linguistics Order copies of this and other ACL proceedings from: Donald E. Walker (ACL) Bell Communications Research 445 South Street MRE 2A379 Morristown, NJ 07960, USA PREFACE This volume is the official record of the Twenty-Fourth Annual Meeting of the Association for Computational Linguistics. It contains abstracts for the tu- torials and panels as well as the texts of the presented papers. Such a meeting can be a success only through the efforts of a large number of people. We are first indebted to the very many authors who submitted papers. While the great majority of them reported important work, only a third could be included in the program. We are also indebted to the members of the Program Committee who helped make the difficult decisions: Kenneth W. Church Michael Dyer Carole D. Hafner George E. Heidorn David D. McDonald Fernando C. N. Pereira Candace L. Sidner John S. White A T8~ T Bell Laboratories University of California at Los Angeles Northeastern University IBM T.J. Watson Research Center University of Massachusetts SRI International BBN Laboratories Siemens Information Systems In addition, much credit goes to Bruce W. Ballard who organized the tutorial sessions and to Ralph Grishman and Cecile Paris who organized the demonstra- tions and exhibits. On administrative matters, Don Walker published the Call for Papers and this Proceedings, sent out the advertisements and registration packets, and han- dled countless other problems that most of us never knew existed. Kathy McKeown and Cecile Paris were in charge of the huge task of local arrangements. I am also grateful to the Department of Computer Science at Duke University which provided extensive secretarial support for my correspondence and organiza- tional activities. Alan W. Biermann, Duke University Chair, Program Committee III IV CONFERENCE PROGRAM 8:45--12:45 1:45--5:45 9:00--9:15 9:15--10:15 10:15-10:40 11:10-11:35 11:35-12:00 1:30-2:00 2:00-2:30 2:30-2:55 3:25-3:50 3:50-4:15 TUESDAY, 10 JUNE MORNING TUTORIAL SESSIONS Introduction to Computational Linguistics Ralph Grishman (New York University) Natural Language Generation Kathleen McKeown (Columbia University) Structuring the Lezicon Robert Ingria (BBN Laboratories) AFTERNOON TUTORIAL SESSIONS Recent Developments in Syntactic Theory and Their Computational Import Anthony Kroch (University of Pennsylvania) Current Approaches to Natural Language Semantics Graeme Hirst (University of Toronto) Machine Translation Sergei Nirenburg (Colgate University) WEDNESDAY MORNING, JUNE 11 Opening remarks and announcements Invited Paper: Bringing Natural Language Processing to the Micro-Computer Market: The Story of QtYA Gary Hendrix (Symantec) Time and Tense in English Mary P. Harper & Eugene Charniak (Brown University) Recovering Implicit Information Martha S. Palmer, Deborah A. Dahl, Rebecca J. Schiffman, Lynette Hirschman, Marcia Linebarger & John Dowding (SDC-A Burroughs Company) Semantic Acquisition in TEL1." A Transportable, User-Customized Natural Language Processor Bruce Ballard & Douglas Stumberger (AT&T Bell Laboratories) WEDNESDAY AFTERNOON, JUNE 11 Computational Complexity of Current GPSG Theory and Defining Natural Language Grammars in GPSG Eric Sven Ristad (MIT …

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