TEXT IMPLICATION ASSESSMENT DEVICE, TEXT IMPLICATION ASSESSMENT METHOD, AND COMPUTER-READABLE RECORDING MEDIUM

摘要

This text implication assessment device (2) is provided with: a vector generation unit (21) which, with regard to each of a first and a second text, for each predicate-argument structure, generates a vector using words other than words that indicate the type of a parameter of the predicate in the predicate-argument structure; a combination identification unit (22) which compares the vectors generated for each predicate-argument structure with regard to the first text and the vectors generated for each predicate-argument structure with regard to the second text, and on the basis of the results of the comparisons, identifies combinations of a predicate-argument structure of the first text and a predicate-argument structure of the second text; and an implication assessment unit (23) which, for each of the combinations, obtains a feature value, and on the basis of the feature value, assesses whether the first text implies the second text.