Accession Number : ADP001176

Title :   Specialized Information Extraction: Automatic Chemical Reaction Coding from English Descriptions,


Personal Author(s) : Reeker,Larry H. ; Zamora,Elena M. ; Blower,Paul E.

Report Date : 01 FEB 1983

Pagination or Media Count : 8

Abstract : In an age of increased attention to the problems of database organization, retrieval problems and query languages, one of the major economic problems of many potential databases remains the entry of the original information into the database. Specialized information extraction (SIE) systems are therefore of potential importance in the entry of information that is already available in certain restricted types of natural language text. This paper contains a discussion of the problem of engineering such systems and a description of a particular SIE system, designed to extract information regarding chemical reactions from experimental sections of papers in the chemical literature and to produce a data structure containing the relevant information.

Descriptors :   *Text processing, *Natural language, *Data bases, *Machine coding, *Chemical reactions, Symposia, Computational linguistics, Data management, Extraction, Computer programming, Information retrieval, Grammars, Dictionaries, Syntax, Semantics, Mapping, English language

Distribution Statement : APPROVED FOR PUBLIC RELEASE