BERT-Based Ensemble Model for Statute Law Retrieval and Legal Information Entailment

Hsuan Lei Shao, Yi Chia Chen, Sieh Chuen Huang*

*此作品的通信作者

研究成果: 書貢獻/報告類型會議論文篇章

摘要

The Competition on legal information extraction/entailment (COLIEE) is an international information processing and retrieval competition. As an aid to future participants as well as question designers, this article describes how to connect legal questions taken from past Japanese bar exams to relevant statutes (articles of the Japanese Civil Code, Task 3) and how to construct a Yes/No question answering system for legal queries (Task 4) incorporating background materials on Japanese law. We restructured the given data to a dataset which contains all possible combinations of queries and articles as continuous strings as our samples. In this way, the difficult pairing task has been turned into a simpler classification task and samples for training became sufficient in number. Next, we used three BERT-based models to solve binary questions in order to achieve stable performance. As a result, the model achieved an F2-score of 0.6587 in Task 3 (ranked 1st) and an accuracy of 0.6161 in Task 4.

原文英語
主出版物標題New Frontiers in Artificial Intelligence - JSAI-isAI 2020 Workshops, JURISIN, LENLS 2020 Workshops, 2020, Revised Selected Papers
編輯Naoaki Okazaki, Katsutoshi Yada, Ken Satoh, Koji Mineshima
發行者Springer Science and Business Media Deutschland GmbH
頁面226-239
頁數14
ISBN(列印)9783030799410
DOIs
出版狀態已發佈 - 2021
事件12th International Symposium on Artificial Intelligence supported by the Japanese Society for Artificial Intelligence, JSAI-isAI 2020, International Workshop on Logic and Engineering of Natural Language Semantics, LENLS 2020, 14th International Workshop on Juris-informatics, JURISIN 2020 - Virtual, Online
持續時間: 2020 十一月 152020 十一月 17

出版系列

名字Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
12758 LNAI
ISSN(列印)0302-9743
ISSN(電子)1611-3349

會議

會議12th International Symposium on Artificial Intelligence supported by the Japanese Society for Artificial Intelligence, JSAI-isAI 2020, International Workshop on Logic and Engineering of Natural Language Semantics, LENLS 2020, 14th International Workshop on Juris-informatics, JURISIN 2020
城市Virtual, Online
期間2020/11/152020/11/17

ASJC Scopus subject areas

  • 理論電腦科學
  • 電腦科學(全部)

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