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United States of America Patent
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Apr 18, 1989
Grant Date -
N/A
app pub date -
Aug 14, 1987
filing date -
Aug 14, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a searching for library documents that match the content of a given sequence of query words, a set of equivalent words are defined for each query word along with a corresponding word equivalence value assigned to each equivalent word. Target sequences of words in a library document which match the sequence of query words are located according to a set of matching criteria. The similarity value of each target sequence is evaluated as a function of the corresponding equivalence values of words included therein. Based upon the similarity values of its target sequences, a relevance factor is then obtained for each library document.
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