We would like to invite you to attend and discuss the topic “Juris-Informatics and PROlog-based LEGal reasoning system: PROLEG” of Professor Ken Satoh (NII, http://research.nii.ac.jp/~ksatoh/ ).

  • Time: from 9 am on November 17, 2018 (Saturday).

  • Location: Room I42.


Abstract

We have been doing research on "juris-informatics" which is application of informatics to legal domain. The name is made from a hope that we will make a similar impact to "bio-informatics" and show some related results to "juris-informatics" As a part of research of "juris-infrmatics", we implement "Japanese Ultimate Fact (JUF) thery" to simulate judge's reasoning at a civil court. JUF theory is a tool for judges to make a judgement based

on burden of proof under incomplete information. We show correspondence of burden of proof and negation as failure in logic programming and we introduce a system called PROLEG which we developed using the

correspondence. PROLEG consists of general rules and exceptions which directly reflect lawyers' knowledge structure in legal reasoning. Then, we show that the representation power of PROLEG is same as Answer Set

Programming and that PROLEG could be applied to any other legal domains where general rules and exceptions co-exist.

 

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