tailieunhanh - Báo cáo khoa học: "Deriving Verbal and Compositional Lexical Aspect for NLP Applications"

Verbal and compositional lexical aspect provide the underlying temporal structure of events. Knowledge of lexical aspect, ., (a)telicity, is therefore required for interpreting event sequences in discourse (Dowty, 1986; Moens and Steedman, 1988; Passoneau, 1988), interfacing to temporal databases (Androutsopoulos, 1996), processing temporal modifiers (Antonisse, 1994), describing allowable alternations and their semantic effects (Resnik, 1996; Tenny, 1994), and selecting tense and lexical items for natural language generation ((Dorr and Olsen, 1996; Klavans and Chodorow, 1992), cf. (Slobin and Bocaz, 1988)). . | Deriving Verbal and Compositional Lexical Aspect for NLP Applications Bonnie J. Dorr and Mari Broman Olsen University of Maryland Institute for Advanced Computer Studies . Williams Building College Park MD 20742 USA bonnie molsen@ Abstract Verbal and compositional lexical aspect provide the underlying temporal structure of events. Knowledge of lexical aspect . a telicity is therefore required for interpreting event sequences in discourse Dowty 1986 Moens and Steedman 1988 Passoneau 1988 interfacing to temporal databases Androutsopoulos 1996 processing temporal modifiers An-tonisse 1994 describing allowable alternations and their semantic effects Resnik 1996 Tenny 1994 and selecting tense and lexical items for natural language generation Dorr and Olsen 1996 Klavans and Chodorow 1992 cf. Slobin and Bo-caz 1988 . We show that it is possible to represent lexical aspect both verbal and compositional on a large scale using Lexical Conceptual Structure LCS representations of verbs in the classes cataloged by Levin 1993 . We show how proper consideration of these universal pieces of verb meaning may be used to refine lexical representations and derive a range of meanings from combinations of LCS representations. A single algorithm may therefore be used to determine lexical aspect classes and features at both verbal and sentence levels. Finally we illustrate how knowledge of lexical aspect facilitates the interpretation of events in NLP applications. 1 Introduction Knowledge of lexical aspect how verbs denote situations as developing or holding in time is required for interpreting event sequences in discourse Dowty 1986 Moens and Steedman 1988 Passoneau 1988 interfacing to temporal databases Androutsopou-los 1996 processing temporal modifiers Antonisse 1994 describing allowable alternations and their semantic effects Resnik 1996 Tenny 1994 and for selecting tense and lexical items for natural language generation Dorr and Olsen. 1996 Klavans and Chodorow

• Báo cáo khoa học
• Deriving Verbal
• Compositional Lexical Aspect
• NLP Applications
• scientific reports
• model language
• process natural language
• Dialog Control
• Natural Language System
• Dialog Control in a Natural Language System
• Expanding the Horizons
• Natural Language Interfaces
• Phil Hayes
• PROSPECTS OR PRACTICAL
• NATURAL LANGUAGE SYSTEMS
• Workshops
• NATURAL LANGUAGE
• INTERACTION WITH MACHINES
• Long Papers
• COMPUTER INTEBFACE DESIGN MURRAY TUROFF DEPARTMENT OF COMPUTER
• IiVFORMATION SCIENCE IIEW JERSEY INSTITUTE OF TECHNOLOGY
• EVALUATION OF NATURAL LANGUAGE
• INTERFACES TO DATABASE SYSTEMS
• A PANEL DISCUSSION
• database query system
• J
• Norwood Crout
• INTERFACES TO DATA BASE SYSTEMS
• Bozena Henisz
• INTERPRETING NATURAL LANGUAGE
• DATABASE UPDATES
• S
• Jermld Kaplan Jim David
• TRANSPORTABLE NATURAL LANGUAGE
• INTERFACES TO DATABASES
• Gary G
• Hendrlx and William H
• Lewis
• DATABASES THEORETICAL
• TECHNICAL ISSUES
• TRANSPORTABLE NATURAL LANGUAGE INTERFACES
• PROBLEMS AND TECHNIQUES
• Barbara J
• Grosz
• THEORETICAL TECHNICAL ISSUES
• NATURAL LANGUAGE ACCESS TO DATABASES
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• Petrick
• Domain Independent
• Database Access Systems
• ISSUES IN NATURAL LANGUAGE
• ACCESS TO DATABASES
• A LOGIC PROGRAMMING PERSPECTIVE
• Sharon C
• Salveter David Maier
• PLANNING NATURAL LANGUAGE
• EXPRESSIONS REFERRING
• Douglas E
• Appelt
• THE TEXT SYSTEM
• NATURAL LANGUAGE GENERATION
• Kathleen R
• M
• MENTING A DATABASE
• KNOWLEDGE REPRESENTATION
• THE KEY TO THE SELECTION PROBLEM
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• Jeffrey Conklin David D
• McDonald
• A KNOWLEDGE ENGINEERING
• NATURAL LANGUAGE UNDERSTANDING
• Stuart C
• Shapiro
• NATURAL LANGUAGE TEXTS
• NECESSARILY GRAMMATICAL
• EVEN COMPLETE
• UNGRAMHATICALITY
• EXTRA GRAMMATICALITY
• NATURAL LANGUAGE UNDERSTANDING SYSTEMS
• Taxonomy
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• Natural Language Processing
• Mark H
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