TAILIEUCHUNG - Báo cáo khoa học: "LOGICAL FORMS IN THE CORE LANGUAGE ENGINE"

This paper describes a 'Logical Form' target language for representing the literal meaning of English sentences, and an intermediate level of representation ('Quasi Logical Form') which engenders a natural separation between the compositional semantics and the processes of scoping and reference resolution. The approach has been implemented in the SRI Core Language Engine which handles the English constructions discussed in the paper. | LOGICAL FORMS IN THE CORE LANGUAGE ENGINE Hiyan Alshawi Jan van Eijck SRI International Cambridge Research Centre 23 Millers Yard Mill Lane Cambridge CB2 IRQ . Keywords logical form natural language semantics ABSTRACT This paper describes a Logical Form target language for representing the literal meaning of English sentences and an intermediate level of representation Quasi Logical Form which engenders a natural separation between the compositional semantics and the processes of scoping and reference resolution. The approach has been implemented in the SRI Core Language Engine which handles the English constructions discussed in the paper. INTRODUCTION The SRI Core Language Engine CLE is a domain independent system for translating English sentences into formal representations of their literal meanings which are capable of supporting reasoning Alshawi et al. 1988 . The CLE has two main levels of semantic representation quasi logical forms QLFs which may in turn be scoped or unscoped and fully resolved logical forms LFs . The level of quasi logical form is the target language of the syntax-driven semantic interpretation rules. Transforming QLF expressions into LF expressions requires i fixing the scopes of all scope-bearing operators quantifiers tense operators logical operators and distinguishing distributive readings of noun phrases from collective ones and ii resolving referential expressions such as definite descriptions pronouns indexical expressions and underspecified relations. The QLF level can be regarded as the natural level of sentence representation resulting 25 from linguistic analysis that applies compositional semantic interpretation rules independently of the influence of context. Sentence J syntax rules Parse trees JJ. semantic rules QLF expressions 0 context LF expressions The QLF expressions are derived on the basis of syntactic structure by means of semantic rules that correspond to the syntax rules that were used for analysing the sentence. .

• Báo cáo khoa học
• LOGICAL FORMS
• CORE LANGUAGE ENGINE
• Hiyan Alshawi
• 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