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UNEXPECTEDNESS DETERMINATION SYSTEM, UNEXPECTEDNESS DETERMINATION METHOD, AND PROGRAM
UNEXPECTEDNESS DETERMINATION SYSTEM, UNEXPECTEDNESS DETERMINATION METHOD, AND PROGRAM
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机译：意外情况确定系统，意外情况确定方法和程序
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摘要
The present invention more suitably determines whether a combination of words is an unexpected combination by the use of a smaller corpus. Disclosed is an unexpectedness determination system provided with: a category identifying means which identifies a category to which a word belongs; a category co-occurrence frequency identifying means which identifies the category co-occurrence frequency between two categories; an unexpectedness index calculating means which calculates an index representing the degree of unexpectedness of combination of two words. The category identifying means identifies a first category, to which an input first word belongs, and a second category, to which an input second word belongs, the category co-occurrence frequency identifying means identifies the category co-occurrence frequencies between the first category and categories other than the first category, and the unexpectedness index calculating means calculates an index representing the degree of unexpectedness of the combination of the first word and the second word on the basis of the category co-occurrence frequency specified by the category co-occurrence frequency identifying means.
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