Keyword outputting apparatus and method

Details Keyword outputting apparatus and method Keyword outputting apparatus and method

2008-03-25

2011-11-22

Jackson, Jakieda (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

Reexamination Certificate

active

08065145

ABSTRACT:
A keyword analysis device obtains word vectors represented by the documents by analyzing keywords contained in each of documents input in a designated period. A topic cluster extraction device extracts topic clusters belonging to the same topic from a plurality of documents. A keyword extraction device extracts, as a characteristic keyword group, a predetermined number of keywords from the topic cluster in descending order of appearance frequency. A topic structurization determination device determines whether the topic can be structurized, by segmenting the topic cluster into subtopic clusters with reference to the number of documents, the variance of dates contained in the documents, or the C-value of keyword contained in the documents, as a determination criterion. And a keyword presentation device presents the characteristic keyword group in the subtopic cluster upon arranging the keyword group on the basis of the date information.

REFERENCES:
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patent: 7607083 (2009-10-01), Gong et al.
patent: 2008/0033938 (2008-02-01), Okamoto et al.
patent: 2001-325272 (2001-11-01), None
http://kizasi.jp/, Jul. 26, 2006, 4 pps.

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