Data processing: database and file management or data structures – Database and file access – Record – file – and data search and comparisons
Reexamination Certificate
2011-04-26
2011-04-26
Corrielus, Jean M (Department: 2162)
Data processing: database and file management or data structures
Database and file access
Record, file, and data search and comparisons
C707S769000, C707S770000
Reexamination Certificate
active
07933911
ABSTRACT:
A medium storing a document retrieval program, a document retrieval apparatus and a document retrieval method that can retrieve a classification code of an appropriate grain size are provided. A medium computer-readably storing a document retrieval program causes a computer to execute a process comprising an acquisition step that acquires the first key information, or the key for retrieving a document, a first retrieval step that causes documents containing the first key information to be retrieved from a predetermined range in the database, a first extraction step that extracts the first classification codes from the documents retrieved by the first retrieval step as candidate classification codes, the first classification code being related to the documents, a second retrieval step that causes documents containing candidate classification codes to be retrieved from the predetermined range, a second extraction step that extracts the second key information contained in the documents retrieved by the second retrieval step, the second key information being of the type same as the first key information and an evaluation step that evaluates the candidate classification codes on the basis of comparison of the first key information and the second key information.
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Watanabe et al.; “Text Mining Based on Keyword Association”; Computer Systems Labs, Fujitsu Laboratories Ltd., Japan; Jul. 16, 1999; pp. 57-64.
Corrielus Jean M
Fujitsu Limited
Fujitsu Patent Center
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