The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 12, 2007

Filed:

Jul. 29, 2002
Applicants:

Tadataka Matsubayashi, Yokohama, JP;

Katsumi Tada, Kawasaki, JP;

Yoshifumi Sato, Yokohama, JP;

Yasuhiko Inaba, Yokohama, JP;

Shin′ Ya Yamamoto, Akashi, JP;

Inventors:

Tadataka Matsubayashi, Yokohama, JP;

Katsumi Tada, Kawasaki, JP;

Yoshifumi Sato, Yokohama, JP;

Yasuhiko Inaba, Yokohama, JP;

Shin′ ya Yamamoto, Akashi, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 10/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

Similar document retrieving method and system for retrieving similar documents from a document database storing plural documents written in different languages with high accuracy while suppressing retrieval noise even when difference is found in the number of registered documents in dependence on the species of description languages. Statistical information concerning the registration-subjected documents is collected on a language-by-language basis upon registration thereof. Upon retrieval of documents similar to a query document, weights of words extracted from the query document are taken into account and on a language-by-language basis by referencing the statistical information.


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