Document retrieval system using analog signal comparisons for retrieval conditions including relevant keywords
First Claim
1. A document retrieval system for retrieving a registered document from a document database responsive to a designated retrieval condition including one or a plurality of designated keywords, said document retrieval system comprising:
- a) storage means for storing;
1) keyword relationships which indicate relationship values of keywords; and
2) relations of the keywords and registered documents;
the storage means having a storage means output portion;
b) input means for designating a retrieval condition including one or a plurality of designated keywords, said retrieval condition determining a registered document which is to be retrieved from said storage means based upon an analog signal comparison, the input means having an input means output portion;
c) selection means, coupled to said storage means via the storage means output portion and coupled to said input means via the input means output portion, for;
1) selecting a plurality of keyword relationships based on the retrieval condition; and
2) converting the selected keyword relationships into analog signals;
the selection means having a selection means output portion;
d) analog operation means, coupled to said selection means via the selection means output portion, for calculating a relevance of document based on the analog signals received from said selection means, the analog operation means having an operation means output portion; and
e) conversion means, coupled to said analog operation means via the operation means output portion, for converting into a digital value the calculated relevance of document received from said analog operation means via the operation means output portion, the conversion means having a conversion means output portion.
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Accused Products
Abstract
A document retrieval system retrieves a registered document from a document database responsive to a designated retrieval condition including one or a plurality of designated keywords. The document retrieval system includes a storage for storing keyword relationships which indicate relationship values of keywords and relations of the keywords and registered documents, an input part for designating a retrieval condition including one or plurality of designated keywords, where the retrieval condition determines a registered document which is to be retrieved from the storage, a selector for selecting a plurality of keyword relationships based on the retrieval condition and for converting the selected keyword relationships into analog signals, an analog operation circuit for calculating a relevance of document based on the analog signals, and a converter for converting the calculated relevance of document into a digital value.
133 Citations
7 Claims
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1. A document retrieval system for retrieving a registered document from a document database responsive to a designated retrieval condition including one or a plurality of designated keywords, said document retrieval system comprising:
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a) storage means for storing; 1) keyword relationships which indicate relationship values of keywords; and 2) relations of the keywords and registered documents;
the storage means having a storage means output portion;b) input means for designating a retrieval condition including one or a plurality of designated keywords, said retrieval condition determining a registered document which is to be retrieved from said storage means based upon an analog signal comparison, the input means having an input means output portion; c) selection means, coupled to said storage means via the storage means output portion and coupled to said input means via the input means output portion, for; 1) selecting a plurality of keyword relationships based on the retrieval condition; and 2) converting the selected keyword relationships into analog signals;
the selection means having a selection means output portion;d) analog operation means, coupled to said selection means via the selection means output portion, for calculating a relevance of document based on the analog signals received from said selection means, the analog operation means having an operation means output portion; and e) conversion means, coupled to said analog operation means via the operation means output portion, for converting into a digital value the calculated relevance of document received from said analog operation means via the operation means output portion, the conversion means having a conversion means output portion. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification