Information retrieval apparatus and information retrieval...

Details Information retrieval apparatus and information retrieval... Information retrieval apparatus and information retrieval...

2005-02-23

2008-08-12

Rones, Charles (Department: 2164)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000

Reexamination Certificate

active

07412435

ABSTRACT:
There is provided an information retrieval apparatus which can properly retrieve information associated with a user's preference from one of a plurality of data bases having different use frequencies. An information retrieval apparatus includes: a retrieval instruction issue unit which identifies one of an information source A data base, an information source B data base and an information source C data base according to the user's operation; a retrieval keyword selection unit which preferentially selects, from a group of keywords indicating the user's preference, one or more strongly preferred keywords based on a number associated with the use frequency of the data base identified by the retrieval instruction issue unit; and a retrieval unit which retrieves information including the one or more keywords selected by the retrieval keyword selection unit from the data base identified by the retrieval instruction issue unit.

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