TEXT SEARCH DEVICE

WIPO Patent Application WO/2016/162961

A1

The text search device according to the present invention stores, in advance, specification item tree structures, each for managing specification items in a tree structure, and also stores, in advance, topic probabilities and a representative specification item for each item of text in other selected documents. The text search device then performs: a process for acquiring at least one specification item, which serves as a search key, and a technical document; a process for calculating topic probabilities for each of the individual texts constituting the technical document, on the basis of the word distribution in the text; a process for determining, from a specification item tree structure, the representative specification item associated with the search specification item; a process for calculating a representative specification item certainty level for each text on the basis of the topic probabilities for the text; a process for calculating an intra-text word proximity level for each text on the basis of a word or words constituting the search specification item; a process for combining the certainty level and the proximity level to calculate a combined measure; and a process for extracting one or more texts relating to the search specification item for a new technical document, on the basis of the combined measure, and displaying the extracted one or more texts as extraction results. In this way the text search device improves the accuracy of text search results.

MATSUI TAKAHARU (JP)
IMAZAWA KEI (JP)

PCT/JP2015/060904

October 13, 2016

April 08, 2015

Click for automatic bibliography generation  

HITACHI LTD (JP)

G06F17/30

JPH07319918A	1995-12-08
JPH0744579A	1995-02-14
JPH0628403A	1994-02-04
JP2013003663A	2013-01-07
JPH1145254A	1999-02-16

INOUE Manabu et al. (JP)
Manabu Inoue (JP)

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