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:
Dec. 02, 2008

Filed:

Sep. 22, 2005
Applicants:

Hiroshi Masuichi, Kanagawa, JP;

Daigo Sugihara, Kanagawa, JP;

Tomoko Ohkuma, Kanagawa, JP;

Hiroki Yoshimura, Kanagawa, JP;

Inventors:

Hiroshi Masuichi, Kanagawa, JP;

Daigo Sugihara, Kanagawa, JP;

Tomoko Ohkuma, Kanagawa, JP;

Hiroki Yoshimura, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/00 (2006.01); G06F 15/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

A question answering system includes a similar-question generation unit, a first search unit, a second search unit, and an answer selection unit. The similar-question generation unit selects a feature word from an input question to generate a transformational question in which the feature word is replaced with another word. The first search unit executes a first search process based on the transformational question. The second search unit selects a word included in a first search result acquired as an extension word and executes a second search process with using the selected extension word. The answer selection unit analyzes a correspondence relation among extension words included in a second search result, determines the feature word and a constructive part of an answer equivalent word in the second search result based on an analysis result, and selects a word determined to be an answer.


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