tailieunhanh - Báo cáo khoa học: "The Costs of Inheritance in Semantic Networks"

Questioning texts represented in semantic relations I requires the recognition that synonyms, instances, and hyponyms may all satisfy a questioned term. A basic procedure for accomplishing such loose matching using inheritance from a taxonomic organization of the dictionary is defined in analogy with the unification a!gorithm used for theorem proving, and the costs of its application are analyzed. It is concluded tl,at inherit,~nce logic can profitably be ixiclu.'ted in the basic questioning procedure. . | The Costs of Inheritance in Semantic Networks Rob t F. Simmons The University of Texas Austin Abstract Questioning texts represented in semantic relations1 requires the recognition that synonyms instances and hyponyms may all satisfy a questioned term. A basic procedure for accomplishing such loose matching using inheritance from a taxonomic organization of the dictionary is defined in analogy with the unification algorithm used for theorem proving and the costs of its application are analyzed. It is concluded that inheritance logic can profitably be included in the basic questioning procedure. AJ Handbook Study- In studying the of answering questions from fifty pages of the Al Handbook it is striking that such subsections as those describing problem representations are organized so as to define conceptual dictionary entries for the terms. First class definitions are offered and their terms defined then examples are given and the computational terms of the definitions are instantiated. Finally the technique described is applied to examples and redefined mathematically. Organizing these texts by hand into coherent hierarchic structures of discourse results in very usable conceptual dictionary definitions that are related by taxonomic and partitive relations leaving gaps only for non-technical terms. For example in give snapshots of the state of the problem at various stages in its solution terms such as state problem and solution are defined by the text while give snapshots and stages are not. Our first studies in representing and questioning this text have used semantic networks with a minima number of case arcs to represent the sentences and Superset Instance and Of Has arcs to represent respectively taxonomic and partitive relations between concepts. Equivalence arcs are also used to represent certain relations signified by uses of is and apposition Supported by NSF Grant 1ST 8200976 and AND and OR arcs represent conjunction. Since June 1982 eight .

• Báo cáo khoa học
• The Costs of Inheritance
• Semantic Networks
• Robt F
• Simmons
• 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