International Joint Research on Comparative Knowledge Analysis of CISG

本研究由美国、德国、日本法律专家和法律人工智能研究人员共同厘清了《联合国国际货物销售合同公约》（CISG）的知识结构。从比较法的角度，根据各国的解释理论，对得出《销售公约》适用案例结果的推理过程进行了审查。并将法律人工智能的研究成果应用于CISG的分析中。至此，国际上对案件的法律解释和适用存在差异的原因得到了澄清。关于《销售公约》第四十九条的合同无效权问题，可以看出，上述差异源于正当化过程中所添加的解释命题的差异，即条款表述所施加的限制范围设定的差异以及对法律适用结果的估计的差异。此外，已经明确的是成文法国家的专家而不是普通法的专家做出灵活的解释，而且CISG的专家具有共同的倾向。明确的知识结构已被安装到法律知识库系统中，并且推理过程的差异已能够在系统上表现出来。

In this research, the knowledge structure of the United Nations Convention on Contracts for the International Sale of Goods (CISG) has been clarified by American, German and Japanese legal experts on this law and researchers on legal artificial intelligence jointly. The reasoning processes concluding the results of the applications of the CISG to cases were examined on the basis of the interpretation theories in each country from the viewpoint of comparative law. And the research results of legal artificial intelligence were applied to the analysis of the CISG. As a result, the reasons for the international differences in interpretations and applications of law to cases have been clarified. On the problem of the right to avoid a contract concerning Article 49 of the CISG, it has become clear that the above differences originate in differences in the interpretation propositions added in the process of the justification, i.e. differences in scopes settings of restrictions imposed by the expressions of the provisions and differences in estimates of results of the applications of law. In addition, it has been made clear that experts in statute law states put flexible interpretations rather than experts on the basis of common law, and that the experts on the CISG have a common disposition. The clarified knowledge structure has been installed into the legal knowledge base system, and differences in the reasoning processes have been able to be demonstrated on the system.