DEVICE FOR COLLECTING CONTRADICTORY EXPRESSION AND COMPUTER PROGRAM FOR SAME

摘要

(Task) Provide a device that can efficiently collect contradictory expressions in units smaller than sentences. (Solving means) The contradiction expression collecting device is a first for extracting a pattern pair consisting of a pattern that contradicts each other by machine learning using a pattern pair consisting of a pattern of the form "X makes Y ○○" as learning data. The step contradiction pattern classification unit, an additional contradiction pattern pair derivation unit 130 that updates one pattern by applying an implication to each of the extracted pattern pairs to derive a new pattern pair, and each of the derived new pattern pairs. A training data expansion unit 136 that expands the training data by adding a pattern pair that is likely to have a contradictory pattern to the training data, and a pattern pair that is given by machine learning using the extended training data as a pattern that contradicts each other. It includes an SVM 142 that performs a second-stage classification to classify into a pattern pair and others.