TAILIEUCHUNG - Báo cáo khoa học: "On the Acquisition of Lexical Entries: The Perceptual Origin of Thematic Relations"

This paper describes a computational model of concept acquisition for natural language. W e develop a theory of lexical semantics, the Eztended Aspect Calculus, which together with a ~maxkedness theory" for thematic relations, constrains what a possible word meaning can be. This is based on the supposition that predicates from the perceptual domain axe the primitives for more abstract relations. W e then describe an implementation of this model, TULLY, which mirrors the stages of lexical acquisition for children. . | Oii the Acquisition of Lexical Entries The Perceptual Origin of Thematic Relations James Pustejovsky Department of Computer Science Brandeis University Waltham MA 02254 617-736-2709 jamesp@ Abstract This paper describes a computational model of concept acquisition for natural language. We develop a theory of lexical semantics the Extended Aspect Calculus which together with a markedness theory for thematic relations constrains what a possible word meaning can be. This is based on the supposition that predicates from the perceptual domain are the primitives for more abstract relations. We then describe an implementation of this model TULLY which mirrors the stages of lexical acquisition for children. 1. Introduction In this paper we describe a computational model of concept acquisition for natural language making use of positive-only data modelled on a theory of lexical semantics. This theory the Extended Aspect Calculus acts together with a markedness theory for thematic roles to constrain what a possible word type is just as a grammar defines what a well-formed tree structure is in syntax. We argue that linguistic specific knowledge and learning principles are needed for concept acquisition from positive evidence alone . Furthermore this model posits a close interaction between the predicates of visual perception and the early semantic interpretation of thematic roles as used in linguistic expressions. In fact we claim that these relations act as constraints to the development of predicate hierachies in language acquisition. Finally we describe TULLY an implementation of this model in ZETALISP and discuss its design in the context of machine learning research. There has been little work on the acquisition of thematic relation and case roles due to the absence of any consensus on their formal properties. In this research we begin to address what a theory of thematic relations might look like using learnability theory as a metric for evaluating .

• Báo cáo khoa học
• On the Acquisition of Lexical Entries
• The Perceptual Origin
• Thematic Relations
• 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
• R
• 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
• E
• 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
• Descriptions
• Individuals in Natural
• Language Understanding
• The Use of Ooject Special Knowledge
• Natural Language Processing
• Mark H
• Bursteln