Title:
SIMILARITY EVALUATION DEVICE, SIMILARITY EVALUATION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2021/024430
Kind Code:
A9
Abstract:
The present invention evaluates similarity between character strings taking concept into account. A similarity evaluation device (1) accepts a first and a second character string as input and outputs similarity between the character strings. A term unification unit (11) replaces, using term unification data, the words included in the first and second character strings and having the same concept but differing in expression so that the expressions of the words are made the same. A morphological analysis unit (12) morphologically analyzes the first and second character strings. A concept deletion unit (13) deletes a prescribed morpheme from the morphological analysis results of the first and second character strings. A similarity calculation unit (14) obtains, as similarity, the number of morphemes included in both of the morphological analysis results of the first and second character strings.
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Inventors:
OKADA RINA (JP)
HASEGAWA SATOSHI (JP)
HASEGAWA SATOSHI (JP)
Application Number:
PCT/JP2019/031215
Publication Date:
March 04, 2021
Filing Date:
August 07, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G06F16/30
Attorney, Agent or Firm:
NAKAO, Naoki et al. (JP)
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