Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2004-05-05
2008-10-21
Lee, Wilson (Department: 2163)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000
Reexamination Certificate
active
07440938
ABSTRACT:
Information that individual elements (characteristic character strings) indicative of characteristics of a registered document appear in the registered document is stored in advance. When calculating similarity of the registered document, a query designated by a searcher is analyzed. The query is represented by a characteristic vector having the individual elements which take the relation between a plurality of words into consideration. Pieces of appearance information of the individual words contained in the query are counted. The counted appearance information is compared with a searching index to calculate similarity between documents.
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Iijima Michio
Matsubayashi Tadataka
Ogawa Yuichi
Sudou Tsuyoshi
Sugaya Natsuko
Antonelli, Terry Stout & Kraus, LLP.
Hitachi , Ltd.
Lee Wilson
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