Information retrieval apparatus using a hierarchical structure o

Details Information retrieval apparatus using a hierarchical structure o Information retrieval apparatus using a hierarchical structure o

1997-12-11

1999-08-10

Black, Thomas G.

Data processing: database and file management or data structures

Database design

Data structure types

707 3, 707 4, 707101, 707102, G06F 1730

Patent

active

059374071

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.

REFERENCES:
patent: 5339256 (1994-08-01), Levy et al.
patent: 5768578 (1998-06-01), Kirk et al.
patent: 5778373 (1998-07-01), Levy et al.
patent: 5826258 (1998-10-01), Gupta et al.
Microsoft Press Computer Dictionary, Second Edition, 1994, pp. 156-157, 344-345, Dec. 1994.

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