The Simplification of Retrieval Requests Generated by Question-Answering Systems.

Ralph Grishman: The Simplification of Retrieval Requests Generated by Question-Answering Systems. VLDB 1978: 400-406

@inproceedings{DBLP:conf/vldb/Grishman78,
  author    = {Ralph Grishman},
  editor    = {S. Bing Yao},
  title     = {The Simplification of Retrieval Requests Generated by Question-Answering
               Systems},
  booktitle = {Fourth International Conference on Very Large Data Bases, September
               13-15, 1978, West Berlin, Germany},
  publisher = {IEEE Computer Society},
  year      = {1978},
  pages     = {400-406},
  ee        = {db/conf/vldb/Grishman78.html},
  crossref  = {DBLP:conf/vldb/78},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

Abstract

We describe a system for answering English questions about a relational data base. The data base consists of narrative medical records which have been automatically reduced to a tabular form called an information format. Like other question-answering systems, ours operates in three stages: syntactic analysis; semantic interpretation, which generates retrieval requests similar to predicate calculus expressions; and retrieval. This paper focuses on a simplification procedure which is applied to the output of the semantic interpreter in order to simplify the retrieval request. The simplification rules are described in detail and contrasted with other relational data base optimization procedures.

ACM SIGMOD Anthology

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Printed Edition

S. Bing Yao (Ed.): Fourth International Conference on Very Large Data Bases, September 13-15, 1978, West Berlin, Germany. IEEE Computer Society 1978
Contents

References

[1]: E. F. Codd: Relational Completeness of Data Base Sublanguages. In: R. Rustin (ed.): Database Systems: 65-98, Prentice Hall and IBM Research Report RJ 987, San Jose, California : (1972)
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[3]: Ralph Grishman, Lynette Hirschman: Question Answering from Natural Language Medical Data Bases. Artif. Intell. 11(1-2): 25-43(1978)
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[11]: Naomi Sager, Ralph Grishman: The Restriction Language for Computer Grammars of Natural Language. Commun. ACM 18(7): 390-400(1975)
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[13]: Eugene Wong, Karel Youssefi: Decomposition - A Strategy for Query Processing. ACM Trans. Database Syst. 1(3): 223-241(1976)
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