WORD PAIR ACQUISITION DEVICE, WORD PAIR ACQUISITION METHOD, AND PROGRAM

摘要

Conventionally, it has been impossible to appropriately acquire word pairs having a prescribed relationship. Such word pairs can be appropriately acquired with a word pair acquisition apparatus including: a word class information storage unit in which word class information for specifying a class of a word can be stored; a class pair favorableness degree storage unit in which a class pair favorableness degree indicating the appropriateness of two classes can be stored; a seed pattern storage unit in which can be stored one or more seed patterns used for acquiring two word pairs having a prescribed relationship a word pair acquisition unit that acquires one or more word pairs co-occurring with the seed pattern from the one or more sentence groups; a class pair favorableness degree acquisition unit that acquires a class pair favorableness degree corresponding to one or more word pairs; a score determination unit that uses the class pair favorableness degree to determine a score of each of the word pairs; a word pair selection unit that acquires one or more word pairs having a score that is high enough to satisfy a predetermined condition; and a word pair output unit that outputs the one or more word pairs acquired by the word pair selection unit.