Title:
同義語推定装置、同義語推定方法および同義語推定プログラム
Document Type and Number:
Japanese Patent JP5507621
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a synonym estimation device, a synonym estimation method, and a synonym estimation program, capable of more accurately specifying a synonym similar to a query required for retrieval.SOLUTION: A synonym estimation device 10 performs: accepting a registration of a calculation expression for calculating a new feature value from a plurality of feature values; learning weighting of the plurality of feature value and a new feature value, the weighting enabling character strings to be determined in a descending order of similarity to the query on the basis of learning data 33; calculating a new feature value from a plurality of feature values of a plurality of synonym candidates retrieved from a query required for retrieval by using a calculation expression; and specifying a synonym similar to the query from among the plurality of synonym candidates on the basis of a calculation result obtained by calculating the plurality of feature values and the new feature value with the learned weighting.
Inventors:
Kei Utsumi
Application Number:
JP2012140467A
Publication Date:
May 28, 2014
Filing Date:
June 22, 2012
Export Citation:
Assignee:
Yahoo Japan Corporation
International Classes:
G06F17/30
Domestic Patent References:
| JP2011118526A | ||||
| JP2009223463A | ||||
| JP2012108570A |
Other References:
森本 康嗣,文脈類似度と表記類似度を用いた教師あり同義語抽出,言語処理学会第16回年次大会発表論文集,日本,言語処理学会,2010年 3月 8日,974-977ページ
Attorney, Agent or Firm:
Hiroaki Sakai