Abstract
We develop a system allowing lawyers and law school students to analyze court judgments. We describe a transformation from the logic programming language PROLEG to a bipolar argumentation framework (BAF) and the legal reasoning involved. Legal knowledge written in a PROLEG program is transformed into a BAF, in which the structure of argumentation in a judgment is clear. We describe two types of reasoning by the BAF: clarification of the entire structure and causality of arguments, and identification of the required evidence, and we show its applications on legal reasoning.
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- 1.
Note that the examples shown here are simplified versions of the actual penal code; the conditions per se are simplified and the legal terminology is not precise.
- 2.
Note that, in the following figures, we omit the dotted rectangle over existence arguments to avoid making a figure messy.
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Acknowledgment
This work was supported by JSPS KAKENHI Grant Number JP17H06103.
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Kawasaki, T., Moriguchi, S., Takahashi, K. (2019). Reasoning by a Bipolar Argumentation Framework for PROLEG. In: Kojima, K., Sakamoto, M., Mineshima, K., Satoh, K. (eds) New Frontiers in Artificial Intelligence. JSAI-isAI 2018. Lecture Notes in Computer Science(), vol 11717. Springer, Cham. https://doi.org/10.1007/978-3-030-31605-1_10
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