Artificial intelligence (AI) and law is an AI research area that has a history spanning more than 50 years. In the early stages, several legal-expert systems were developed. Legal-expert systems are tools designed to realize fair judgments in court. In addition to this research, as information and communication technologies and AI technologies have progressed, AI and law has broadened its view from legal-expert systems to legal analytics and, recently, a lot of machine-learning and text-processing techniques have been employed to analyze legal information. The research trends are the same in Japan as well and not only people involved with legal-expert systems, but also those involved with natural language processing as well as lawyers have become interested in AI and law. This report introduces the history of and the research activities on applying AI to the legal domain in Japan.

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人工智能在日本法律领域的应用

人工智能 (AI) 和法律是一个具有 50 多年历史的人工智能研究领域。在早期阶段，开发了几个法律专家系统。法律专家系统是旨在实现法庭公正判决的工具。除了这项研究之外，随着信息和通信技术以及人工智能技术的进步，人工智能和法律已经将其视野从法律专家系统扩大到法律分析，并且最近已经采用了许多机器学习和文本处理技术分析法律信息。日本的研究趋势也相同，不仅涉及法律专家系统的人，而且涉及自然语言处理的人以及律师都对人工智能和法律产生了兴趣。