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公开(公告)号:US11537790B2
公开(公告)日:2022-12-27
申请号:US17046668
申请日:2019-04-04
发明人: Katsuji Bessho , Hisako Asano , Junji Tomita
IPC分类号: G06F17/00 , G06F40/237 , G06F40/242 , G06F40/30
摘要: To arrange all words so that the distance of a given word pair will be appropriate.
Using as input a concept base 22 which is a set of pairs of a word and a vector representing a concept of the word, and a dictionary 24 which is a set of semantically distant or close word pairs, when a word pair C being a pair of given words A, B in the concept base 22 is present in the dictionary 24, conversion means 30 associates with the word pair C a magnitude D of a difference vector between a difference vector V′ between a converted vector of the word A and a converted vector of the word B, and a vector kV determined by multiplying a difference vector V between the vector of the word A in the concept base 22 and the vector of the word B in the concept base 22 by a scalar value k. When the word pair C is not present in the dictionary 24, the conversion means 30 associates the magnitude D of the difference vector between the difference vector V′ and the difference vector V with the word pair C. The conversion means 30 converts the vector of a given word in the concept base 22 such that a total sum of the magnitude D corresponding to every word pair C is minimized.-
公开(公告)号:US11182435B2
公开(公告)日:2021-11-23
申请号:US16461201
申请日:2017-11-20
IPC分类号: G06F16/30 , G06F16/903 , G06F16/9032 , G06N3/04 , G06F16/00
摘要: Taking as input a group of text pairs for learning in which each pair is constituted with a first text for learning and a second text for learning that serves as an answer when a question is made with the first text for learning, a query expansion model is learned so as to generate a text serving as an expanded query for a text serving as a query.
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