Information retrieval apparatus using a hierarchical structure of schema
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United States of America Patent
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Aug 10, 1999
Grant Date -
N/A
app pub date -
Dec 11, 1997
filing date -
Dec 12, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An information retrieving apparatus comprises a retrieve instruction executing means for executing a retrieve instruction based on a retrieval formula described based on an arbitrary schema, a schema conversion means for converting the retrieval formula into another retrieval formula according to another schema based on pregiven rules, and a schema management means for managing the rules for converting the retrieval formula into the other retrieval formula, wherein the retrieve instruction executing means retrieves desired information based on the other retrieval formula. In this case, preferred embodiments are as follows.
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