Accession Number : ADP001170

Title :   Knowledge Based Question Answering,

Corporate Author : MITRE CORP BEDFORD MA

Personal Author(s) : Pazzani,Michael J. ; Engelman,Carl

Report Date : 01 FEB 1983

Pagination or Media Count : 8

Abstract : The natural language database query system incorporated in the KNOBS interactive planning system comprises a dictionary driven parser, APE-II, and script interpreter which yield a conceptual dependency conceptualization as a representation of the meaning of user input. A conceptualization pattern matching production system then determines and executes a procedure for extracting the desired information from the database. In contrast to syntax driven X-A systems, e.g., those based on ATN parsers, APE-II is driven bottom-up expectations associated with word meanings. The processing of a query is based on the contents of several knowledge sources.

Descriptors :   *Computers, *Data bases, *Natural language, *Artificial intelligence, Symposia, Information systems, Man computer interface, Planning, Input output processing, Information retrieval, User needs, Parsers, Dictionaries, Interpreters, Semantics, Computational linguistics

Distribution Statement : APPROVED FOR PUBLIC RELEASE