TY - JOUR T1 - LEXAI : Legal Document Similarity Analysis Service using Explainable AI AU - Bai, Juho AU - Park, Seog JO - Journal of KIISE, JOK PY - 2020 DA - 2020/1/14 DO - 10.5626/JOK.2020.47.11.1061 KW - explainable AI KW - transformer KW - deep neural network KW - deep learning KW - document classification KW - similarity AB - Recently, in keeping with the improvement of deep learning, studies on using deep learning a specialized field have diversified. Semantic searching for legal documents is an essential part of the legal field. However, it is difficult to function outside of the service using the expert system because it requires professional knowledge in the relevant field. It is also challenging to establish an automated, semantically similar legal document retrieval environment because the cost of hiring professional human resources is high. While existing retrieval services provide an environment based on expert systems and statistical systems, the proposed method adopts the deep learning method with a classification task. We propose a database system structure that provides searching for legal documents with high semantic similarity using an explainable neural network. The features of these proposed methods show the performance of developing and verifying visual similarity assessment methods for semantic relevance among similar documents.