タイトル（掲載誌）Research report (School of Information Science, Japan Advanced Institute of Science and Technology)
一般注記The problem of text representation is an important issue in textual inference tasks. Given the fact that full predicate-logic analysis is not practical in wide-coverage semantic processing, using shallow semantic representations is an intuitive and straightforward approach. Previous work on finding contradiction in text incorporate information derived from predicate-argument structures as features in supervised machine learning frameworks. In contrast to previous work, we explore the use of shallow semantic representations for contradiction detection in a rule-based framework. We address the low-coverage problem of shallow semantic representations by using a backup module which relies on binary relations extracted from sentences for contradiction detection. Evaluation experiments conducted on standard data sets indicated that using the backup module increases the coverage of contradiction phenomena for the contradiction detection system. Our system achieves better recall and F1 score for contradiction detection than most of baseline methods, and the same recall as a state of the art supervised method for the task.
リサーチレポート（北陸先端科学技術大学院大学情報科学研究科）
identifier:https://dspace.jaist.ac.jp/dspace/handle/10119/10901
連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
提供元機関・データベース北陸先端科学技術大学院大学 : JAIST学術研究成果リポジトリ