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1. (WO2013157603) SEARCH QUERY ANALYSIS DEVICE, SEARCH QUERY ANALYSIS METHOD, AND COMPUTER-READABLE RECORDING MEDIUM

Pub. No.:    WO/2013/157603    International Application No.:    PCT/JP2013/061498
Publication Date: Fri Oct 25 01:59:59 CEST 2013 International Filing Date: Fri Apr 19 01:59:59 CEST 2013
IPC: G06F 17/30
Applicants: NEC CORPORATION
日本電気株式会社
Inventors: SHIME,Takao
注連隆夫
KATO,Daishi
加藤大志
OOGA,Satoru
大賀暁
Title: SEARCH QUERY ANALYSIS DEVICE, SEARCH QUERY ANALYSIS METHOD, AND COMPUTER-READABLE RECORDING MEDIUM
Abstract:
A search query analysis device (1) as laid out in the present invention is provided with: a search query classification unit (13) which classifies a plurality of search queries input by a user into a plurality of search query groups in chronological order and identifies, among the plurality of search query groups, a purchase search query group that includes the search query that had been input immediately prior to a product purchase of the user, and a first search query group that had been input prior to the purchase search query group; a keyword extraction unit (12) which extracts a keyword group on the basis of a description of the purchased product purchased by the user; and a search query group extraction unit (14) which calculates a similarity degree between the first search query group and the keyword group and extracts a first search query group for which the similarity degree is lower than a threshold.