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Browse Journals & Magazines > Systems, Man and Cybernetics, ...> Volume:18 Issue:6 Help

Two approximate operators for a data base query language: sounds-like and close-to

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3 Author(s)
McClelland, E.B. ; Dept. of Comput. Sci., South Carolina Univ., Columbia, SC, USA ; Trueblood, R.P. ; Eastman, C.M.

Approximate retrieval in a database of formatted data allows values that are close to those requested to be retrieved. Two approximate retrieval operators added to a structured query language are discussed. The two operators are sounds-like (SL) and close-to (CT). The SL operator is used to match two character string values by comparing their phonic sounds. The CT operator is used to select a subset of numeric data values that are relatively close to a given value. These two operators have been implemented and tested in a relational database environment called BDB. These extensions suffice to handle all data types and to allow the approximate retrieval to objects as well as attributes

Published in:
Systems, Man and Cybernetics, IEEE Transactions on  (Volume:18 ,  Issue: 6 )

Date of Publication: Nov/Dec 1988

Page(s):
873 - 884
ISSN :
0018-9472
INSPEC Accession Number:
3383783
Digital Object Identifier :
10.1109/21.23087
Product Type:
Journals & Magazines
Date of Current Version :
06 August 2002
Issue Date :
Nov/Dec 1988
Sponsored by :
IEEE Systems, Man, and Cybernetics Society

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