Legal Question Answering using Ranking SVM and Deep Convolutional Neural Network

This paper presents a study of employing Ranking SVM and Convolutional Neural Network for two missions: legal information retrieval and question answering in the Competition on Legal Information Extraction/Entailment. For the first task, our proposed model used a triple of features (LSI, Manhattan,...

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Bibliographic Details
Published in:arXiv.org 2017-03
Main Authors: Do, Phong-Khac, Huy-Tien Nguyen, Chien-Xuan Tran, Minh-Tien Nguyen, Minh-Le, Nguyen
Format: Article
Language:English
Subjects:
Artificial neural networks
Information retrieval
Legal information
Missions
Neural networks
Ranking
Online Access:Get full text
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Summary:This paper presents a study of employing Ranking SVM and Convolutional Neural Network for two missions: legal information retrieval and question answering in the Competition on Legal Information Extraction/Entailment. For the first task, our proposed model used a triple of features (LSI, Manhattan, Jaccard), and is based on paragraph level instead of article level as in previous studies. In fact, each single-paragraph article corresponds to a particular paragraph in a huge multiple-paragraph article. For the legal question answering task, additional statistical features from information retrieval task integrated into Convolutional Neural Network contribute to higher accuracy.
ISSN:2331-8422