Viettel-AI at SemEval-2023 Task 6: Legal Document Understanding with Longformer for Court Judgment Prediction with Explanation

Thanh Dat Hoang, Chi Minh Bui, Nam Bui


Abstract
Court Judgement Prediction with Explanation (CJPE) is a task in the field of legal analysis and evaluation, which involves predicting the outcome of a court case based on the available legal text and providing a detailed explanation of the prediction. This is an important task in the legal system as it can aid in decision-making and improve the efficiency of the court process. In this paper, we present a new approach to understanding legal texts, which are normally long documents, based on data-oriented methods. Specifically, we first try to exploit the characteristic of data to understand the legal texts. The output is then used to train the model using the Longformer architecture. Regarding the experiment, the proposed method is evaluated on the sub-task CJPE of the SemEval-2023 Task 6. Accordingly, our method achieves top 1 and top 2 on the classification task and explanation task, respectively. Furthermore, we present several open research issues for further investigations in order to improve the performance in this research field.
Anthology ID:
2023.semeval-1.119
Volume:
Proceedings of the 17th International Workshop on Semantic Evaluation (SemEval-2023)
Month:
July
Year:
2023
Address:
Toronto, Canada
Editors:
Atul Kr. Ojha, A. Seza Doğruöz, Giovanni Da San Martino, Harish Tayyar Madabushi, Ritesh Kumar, Elisa Sartori
Venue:
SemEval
SIG:
SIGLEX
Publisher:
Association for Computational Linguistics
Note:
Pages:
862–868
Language:
URL:
https://aclanthology.org/2023.semeval-1.119
DOI:
10.18653/v1/2023.semeval-1.119
Bibkey:
Cite (ACL):
Thanh Dat Hoang, Chi Minh Bui, and Nam Bui. 2023. Viettel-AI at SemEval-2023 Task 6: Legal Document Understanding with Longformer for Court Judgment Prediction with Explanation. In Proceedings of the 17th International Workshop on Semantic Evaluation (SemEval-2023), pages 862–868, Toronto, Canada. Association for Computational Linguistics.
Cite (Informal):
Viettel-AI at SemEval-2023 Task 6: Legal Document Understanding with Longformer for Court Judgment Prediction with Explanation (Hoang et al., SemEval 2023)
Copy Citation:
PDF:
https://aclanthology.org/2023.semeval-1.119.pdf