Ninth International Workshop on Juris-informatics
(JURISIN 2015)
associated with JSAI International Symposia on AI 2015 (IsAI-2015)

November 17 - 18, 2015

New Information

Due to many requests, we have extended submission deadline by September 4.

We are happy to announce that Springer Verlag has agreed to publish a post-proceedings as an LNAI series.

In addition to an invited speacker, Giovanni Sartor, we are happy to announce that Phan Minh Dung will give a joint-invited talk with AAA 2015, and that invited talk of Dong Kwan Jo, Legal Specialist, at National Assembly Law Library, Korea, with Miyoung Jin Kim, Lawyer of "Justice" lawfirm, Korea will be given, and that Shiro Kawashima from Doshisha University will give an invited talk.

Aims and Scope

Juris-informatics is a new research area which studies legal issues from the perspective of informatics. The purpose of this workshop is to discuss both the fundamental and practical issues among people from the various backgrounds such as law, social science, information and intelligent technology, logic and philosophy, including the conventional "AI and law" area. We solicit unpublished papers on theories, technologies and applications on juris-informatics.

Important Dates

Workshop: November 17 - 18, 2015

Submission Deadline: August 28, 2015
Notification: October 1, 2015
NEW Submission Deadline: September 4, 2015 ( Extended )
Notification: October 8, 2015 (Revised)
Camera-ready due: October 13, 2015


Please register the workshop at registration page of JSAI International Symposia on AI 2015.


Relevant topics include, but are not limited to, the following:

  • Model of legal reasoning
  • Argumentation / Negotiation / Argumentation agent
  • Legal term ontology
  • Formal legal knowledge-base / Intelligent management of legal knowledge-base
  • Translation of legal documents
  • Information retrieval of legal texts
  • Computer-aided law education
  • Use of Informatics and AI in law
  • Legal issues on ubiquitous computing / multi-agent system / the Internet
  • Social implications of use of informatics and AI in law
  • Natural language processing for legal knowledge
  • Verification and validation of legal knowledge systems
  • Any theories and technologies which is not directly related with juris-informatics but has a potential to contribute to this domain

Bar Exam Competition

This year, JURISIN invites participation in a legal information extraction and entailment competition. Previous conferences/workshops have not conducted such a shared task on a large legal data collection, so we hope that the 2015 workshop will help establish a major experimental effort in the legal information extraction/retrieval field. The motivation for the competition is to help create a research community of practice for the capture and use of legal information.
Please visit the homepage of the bar exam competition.

Invited Speakers

Giovanni Sartor (University of Bologna/European University Institute of Florence)
Phan Minh Dung (Asian Institute of Technology)
Dong Kwan Jo, Legal Specialist (National Assembly Law Library, Korea) and Miyoung Jin Kim (Lawyer of "Justice" Lawfirm, Korea)
Shiro Kawashima (Doshisha University)


We welcome and encourage the submission of high quality, original papers, which are not simultaneously submitted for publication elsewhere except as a submission to JURIX 2015 (The 28th International Conference on Legal Knowledge and Information Systems). The double submission policy with JURIX 2015 is as follows:

  1. Papers being submitted both to JURISIN2015 and JURIX2015 must note this on the title page.
  2. A paper to be presented at JURISIN2015 must be withdrawn from JURIX2015 and vice versa according to the choice by the authors.
  3. If the authors do not follow this double submission policy, the paper by the authors will not be included in the proceedings of JURISIN 2015.

Papers should be written in English, formatted according to the Springer Verlag LNCS style in a pdf form, which can be obtained from and not exceed 14 pages including figures, references, etc. If you use a word file, please follow the instruction of the format, and then convert it into a pdf form and submit it at the paper submission page. If a paper is accepted, at least one author of the paper must register the workshop and present it. We strongly encourage an online registration.

You can submit your paper at "". If you cannot submit a paper by EasyChair System by some trouble, please send email to "ksatoh[at]"

Post Proceedings

Selected papers will be published as a post-proceedings via Springer Verlag LNAI after the second round of review after the workshop.

The selected papers of the previous workshops were published as volumes of LNAI4914(JURISIN 2007), LNAI5447(JURISIN 2008), LNAI6284(JURISIN 2009) , LNAI6797(JURISIN2010), LNAI7258(JURISIN2011), LNAI7856(JURISIN2012), LNAI8417(JURISIN2013), and LNAI9067(JURISIN2014).

JURISIN2015 Programme (November 17, 2015)

09:00-09:10 Opening Remark
09:10-09:40 A Belief Revision Technique to Model Civil Code Updates
Ryuta Arisaka

09:40-10:10 An Implementation of Belief Re-revision and Reliability Change in Legal Case
Pimolluck Jirakunkanok, Katsuhiko Sano and Satoshi Tojo

10:10-10:40 Argumentation Support Tool with Reliability-Based Argumentation Framework
Kei Nishina, Yuki Katsura, Shogo Okada and Katsumi Nitta

10:40-11:00 Coffee break

11:00-12:00 Joint Invited Talk with AAA-2015:
Phan Minh Dung, Aisian Institute of Technology, Thailand
Title: Towards Axiomatic Foundation of Argument-based Reasoning with Preferences

Several systems of semantics have been proposed for structured argumentation with preferences. As the proposed semantics often sanction contradictory conclusions (even for skeptical reasoners), there is a fundamental need for guidelines for understanding and evaluating them, especially their conceptual foundation and relationship.

We discuss and present properties that could act as axioms for evaluating, understanding and comparing existing approaches to structured argumentation systems with preferences. They could also serve as guidelines when defining new argumentation systems. We refer to attack relations satisfying the axioms as ordinary ones. We show that there exists a 'normal form' for ordinary attack relations in the sense that stable extensions wrt any ordinary attack relation are stable extensions wrt the normal attack relations.

We apply the presented axiom system to analyze and evaluate prominent approaches to defeasible reasoning with preferences, especially the ASPIC+ framework. We also explore the relations between argument-based and non-argument-based approaches to defeasible reasoning with preferences by showing that prominent semantics of logic programming with priorities, satisfy the credulous cumulativity property, a key property in our axiom system.

12:00-13:30 Lunch

13:30-14:30 Invited Talk:
Dong Kwan Jo, Law Library, Korea and Miyoung Jin Kim, "Justice" Lawfirm, Korea
Title: Cyber Court in Civil Procedure in Korea

It is a small talk concerning one of cyber courts which are possible in the future. You will grasp an idea for the on-going cyber court in Korea. For example, What does it makes us a cyber court? How does it works? Who are users for it? What is the problem of it? Is there any high technonlogy such as AI in it? Furthermore, there are some stories which were obtained from a judge in a high court who took a charge of simulation and promotion of the cyber court. You will also meet a working simulation of the cyber court and a real talk of an attorney who is a member of Korean Bar Association in front of you. Please come and enjoy our presentation. Thank you.

14:30-15:30 Invited Talk:
Shiro Kawashima, Doshisha University, Japan
Title: Ubiquitous Access to Civil Justice in Japan

This lecture has a purpose to explain the problems of current system of civil dispute resolution, specially civil procedure in Japan, and to attempt to find directions and prescriptions to conquer them. We adopted adversary system by way of reforms of Code of Civil Procedure in 1947 and 1948. Historically and comparatively adversarial nature in trial is generally one of the most important leading characteristic of the Anglo-American procedural system i.e. in the United States. In the civil dispute resolution process in the civil courts, adversary system is usually up to the parties, not the court, to initiate and prosecute litigation, investigate the pertinent facts, and present proof and legal argument to the trial court. Its feasibility has many prerequisites, but it is doubtful for Japanese Civil Procedure to prepare them now. I would like to propose several new proceedings to make procedure more civil by way of ICT etc.

15:30-16:00 Coffee break

16:00-16:30 Abductive Logic Programming for Normative Reasoning and Ontologies
Marco Gavanelli, Evelina Lamma, Fabrizio Riguzzi, Elena Bellodi, Riccardo Zese and Giuseppe Cota

16:30-17:00 Using Ontologies to Model Data Protection Requirements in Workflows
Cesare Bartolini, Robert Muthuri and Cristiana Santos

17:00-17:30 A Study of Ontology for Civil Trial
Yuya Kiryu, Atsushi Ito, Takehiko Kasahara, Hiroyuki Hatano, Masahiro Fujii and Yu Watanabe

17:30-18:00 The ProLeMAS Project: Representing Natural Language Norms in Input/Output logic
Livio Robaldo, Llio Humphreys, Xin Sun, Loredana Cupi, Cristiana Teixeira Santos and Robert Muthuri

18:00-18:30 Predictability of Agent in Legal Cases
Tetsuji Goto and Satoshi Tojo

19:00- Informal Workshop Dinner

JURISIN2015 Programme (November 18, 2015)

10:00-10:30 Graph based Legal Document Similarity Search
Katsumasa Yoshikawa and Daisuke Takuma

10:30-11:00 Coffee break

11:00-12:00 Invited Talk:
Giovanni Sartor, University of Bologna, Italy
Title: Logic and Argumentation in Legal Interpretation

In most attempts to model legal systems as formal argumentation systems, legal norms are viewed as an argumentation's system inference rules. Since in formal argumentation systems inference rules are generally assumed to be fixed and independent from the inferences they enable, this approach fails to capture the dialectical connection between legal sources, interpretations, norms and arguments. In fact, legal arguments are based on norms, but the validity of norms depends on interpretive arguments, which refer to legal sources, whose bindingness is also established through legal argument based on valid norms. Moreover on the basis of valid legal norms further valid legal norms may obtained though arguments, for instance, according to analogies or \emph{a contrario} inferences. A logical model is proposed that merges reasoning and meta-reasoning, so as to capture the role of interpretation and argumentation in law.

12:00-13:30 Lunch

13:30-14:00 A Method to Estimate Document Structure from Text Document and its Application to Law Articles
Yoichi Hatsutori and Katsumasa Yoshikawa

14:00-14:30 Utilization of Multi-Word Expressions to Improve Statistical Machine Translation of Statutory Sentences
Satomi Sakamoto, Yasuhiro Ogawa, Makoto Nakamura, Tomohiro Ohno and Katsuhiko Toyama

14:30-18:00 COLIEE-2015 (Competition on Legal Information Extractionn and Entailment) Session
14:30-15:00 COLIEE-2015: Evaluation of Legal Question Answering
Mi-Young Kim, Randy Goebel and Ken Satoh

15:00-15:30 Lexical-Morphological Modeling for Legal Text Analysis
Danilo Carvalho, Minh-Tien Nguyen, Chien-Xuan Tran and Minh-Le Nguyen

15:30-16:00 Coffee break

16:00-16:30 An Approach for Retrieving Legal Texts
Duc Vu Tran, Viet Anh Phan, Hai Long Trieu and Le Minh Nguyen

16:30-17:00 A Convolutional Neural Network in Legal Question Answering
Mi-Young Kim, Ying Xu and Randy Goebel

17:00-17:30 Legal Information Retrieval Task: Participation from ISM, Dhanbad
Sushmita, Ambedkar Kanapala and Sukomal Pal

17:30-18:00 Keyword and Snippet Based Yes/No Question Answering System for COLIEE 2015
Yoshinobu Kano

18:00-18:10 Closing Remarks

Workshop Chair

Takehiko Kasahara, Toin Yokohama University, Japan
Ken Satoh, National Institute of Informatics and Sokendai, Japan

Steering Committee Members

Takehiko Kasahara, Toin Yokohama University
Makoto Nakamura, Nagoya University, Japan
Katsumi Nitta, Tokyo Institute of Technology, Japan
Seiichiro Sakurai, Meiji Gakuin University, Japan
Ken Satoh, National Institute of Informatics and Sokendai, Japan
Satoshi Tojo, Japan Advanced Institute of Science and Technology(JAIST), Japan
Katsuhiko Toyama, Nagoya University, Japan

Advisory Committee Members

Trevor Bench-Capon, The University of Liverpool, UK
Tomas Gordon, Fraunfoher FOKUS, Germany
Henry Prakken, University of Utrecht & Groningen, The Netherlands
John Zeleznikow, Victoria University, Australia
Robert Kowalski, Imperial College London, UK
Kevin Ashley, University of Pittsburgh, USA

Program Committee Members

Thomas Agotnes, University of Bergen, Norway
Katie Atkinson, University of Liverpool, UK
Marina De Vos,University of Bath, UK
Randy Goebel, University of Alberta, Canada
Guido Governatori, NICTA, Australia
Tokuyasu Kakuta, Nagoya University, Japan
Yoshinobu Kano, Shizuoka University, Japan
Takehiko Kasahara, Toin Yokohama University, Japan
Mi-Young Kim, University of Alberta, Canada
Robert Kowalski, Imperial College London, UK
Masahiro Kozuka, Okayama University, Japan
Nguyen Le Minh, Japan Advanced Institute of Science and Technology(JAIST), Japan
Beishui Liao, Zhejiang University, China
Minghui Ma, Southwest University, China
Makoto Nakamura, Nagoya University, Japan
Katumi Nitta, Tokyo Institute of Technology, Japan
Paulo Novais, University of Minho, Portugal
Antonino Rotolo, University of Bologna, Italy
Seiichiro Sakurai, Meiji Gakuin University, Japan
Katsuhiko Sano, Japan Advanced Institute of Science and Technology(JAIST), Japan
Ken Satoh, National Institute of Informatics and Sokendai, Japan
Akira Shimazu, Japan Advanced Institute of Science and Technology(JAIST), Japan
Hirotoshi Taira, Osaka Institute of Technology, Japan
Fumihiko Takahashi, Meiji Gakuin University, Japan
Satoshi Tojo, Japan Advanced Institute of Science and Technology(JAIST), Japan
Katsuhiko Toyama, Nagoya University, Japan
Minghui Xiong, Sun Yat-sen University, China
Baosheng Zhang, China University of Political Science and Law, China

Preivous JURISIN workshops

For any inquiry concerning the workshop, please send it to "ksatoh[at]"

JURISIN 2015 home page

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