Associate document retrieving apparatus and storage medium for s

Details Associate document retrieving apparatus and storage medium for s Associate document retrieving apparatus and storage medium for s

1998-03-13

2000-06-13

Fetting, Anton W.

Data processing: database and file management or data structures

Database design

Data structure types

707 5, 707 6, G06F 1730

Patent

active

060760869

ABSTRACT:
The present invention provides an associate document retrieving apparatus capable of associate document retrieval which reflects the relation among keywords connected by logical operators in a retrieval expression. In the apparatus, a document information storing element associates each of the documents with a keyword extracted from the document and stores the associated documents. A retrieval expression obtaining element receives a retrieval expression containing retrieval keywords that may be connected by logical operators. A number of documents calculating element specifies objective keywords from within the extracted keywords stored in the document information storing element and calculates several numbers of different kinds of documents. A degree of similarity determining element determines the degree of similarity between the retrieval expression received by the retrieval expression obtaining element and each of the objective keywords in accordance with a relationship between several numbers of documents calculated by the number of documents calculating element. A degree of association determining element obtains associate document information of a document containing any of the objective keywords and determines the degree of association between the retrieval expression and each of the documents based on the degree of similarity for each of the objective keywords and the associate document information.

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