Hadfi, Rafik(Graduate School of Informatics, Department of Informatics) | Activity Database on Education and Research, Kyoto University

Hadfi, Rafik

Graduate School of Informatics, Department of Informatics Program-Specific Associate Professor

Last Updated :2024/06/26

Basic Information

Faculty

Institute for Liberal Arts and Sciences (ILAS)

Academic Degree

修士（工学）(名古屋工業大学)

博士（工学）(名古屋工業大学)

Research History

From Feb. 2023, To Present
Kyoto University, Graduate School of Informatics, Associate Professor

From Dec. 2020, To Jan. 2023
Kyoto University, Graduate School of Informatics, Assistant Professor

From Sep. 2019, To Dec. 2020
Nagoya Institute of Technology, Graduate School of Engineering Computer Science and Engineering, Adjunct Assistant Professor

From Apr. 2017, To Feb. 2019
Monash University, Psychology / Philosophy, Research Fellow

From Apr. 2015, To Mar. 2017
Nagoya Institute of Technology, Graduate School of Engineering Computer Science and Engineering

From Oct. 2014, To Mar. 2015
Nagoya Institute of Technology, Faculty of Engineering Dept. of Computer Science, Research Assistant

From Sep. 2007, To Feb. 2009
Sagem Communications, Set-top box (STB) division, Embedded System Engineer

Language of Instruction

English

ID,URL

ORCID ID
0000-0003-2352-1936
J-Global ID
201501003260879877
Researcher number
30867495
External link
https://raviq.github.io/

researchmap URL

https://researchmap.jp/rafik

Last Updated :2024/06/26

Research

Research Topics, Overview of the research

Research Topics
- Conversational multiagent systems and their applications to deliberation and voting.
- Multiagent simulation of complex systems, road traffic, urbanism, and social networks.
- Automated decision-making, preference elicitation and automated negotiation.
- Enactive AI, autonomy, and agency.

Research Interests

Game Theory

Machine Learning

Multi-Agent System

Artificial Intelligence

Research Areas

Informatics, Statistical science, Variational Bayes, Inference, Bayesian statistics

Informatics, Computational science, Simulation, Algorithms, Optimization, Distributed systems

Informatics, Mathematical informatics, Information Theory, Graph Theory, Game Theory

Informatics, Intelligent informatics, Agents, Multiagent systems, Simulation, Natural Language Processing, Conversational AI, Automated decision-making, Enactive AI, 4E Cognition, Embodied Cognition

Papers

E-contact facilitated by conversational agents reduces interethnic prejudice and anxiety in Afghanistan
Sofia Sahab; Jawad Haqbeen; Rafik Hadfi; Takayuki Ito; Richard Eke Imade; Susumu Ohnuma; Takuya Hasegawa
Communications Psychology, 21 Mar. 2024

E-contact facilitated by conversational agents reduces interethnic prejudice and anxiety in Afghanistan
Rafik Hadfi
Communications Psychology, 2024

Best-Answer Prediction in Q&A Sites Using User Information
Rafik Hadfi
ArXiv, 2022

Structural complexity predicts consensus readability in online discussions
Rafik Hadfi
Social Network Analysis and Mining, 04 Mar. 2024

Exploring Interaction Hierarchies in Collaborative Editing using Integrated Information
Rafik Hadfi; Takayuki Ito
The 8th ACM Collective Intelligence 2020, Jun. 2020

Conversational agents enhance women's contribution in online debates
Hadfi, Rafik; Okuhara, Shun; Haqbeen, Jawad; Sahab, Sofia; Ohnuma, Susumu; Ito, Takayuki
Scientific Reports, 2023
Access this paper :

Computational Social Choice Competition: Overview
Rafik Hadfi; Takayuki Ito
The 37th Annual Conference of the Japanese Society for Artificial Intelligence, Jun. 2023, Lead author, Corresponding author

Concession Strategy Adjustment in Automated Negotiation Problems
Yuchen Liu; Rafik Hadfi; Takayuki Ito
2023

Agenda-Based Automated Negotiation Through Utility Decomposition
Zongcan Li; Rafik Hadfi; Takayuki Ito
2023

Recent Advances in Agent-Based Negotiation: Applications and Competition Challenges
Rafik Hadfi
2023

Optimization of tree positioning to maximize walking in urban outdoor spaces: A modeling and simulation framework
Rafik Hadfi
Sustainable Cities and Society, 03 Aug. 2022

Augmented Democratic Deliberation: Can Conversational Agents Boost Deliberation in Social Media?
Rafik Hadfi; Takayuki Ito 0001
21st International Conference on Autonomous Agents and Multiagent Systems(AAMAS), 2022

An Agent that Facilitates Crowd Discussion
Takayuki Ito; Rafik Hadfi; Shota Suzuki
Group Decision and Negotiation, 06 Nov. 2021

Argumentative Conversational Agents for Online Discussions
Rafik Hadfi; Jawad Haqbeen; Sofia Sahab; Takayuki Ito
Journal of Systems Science and Systems Engineering, 25 May 2021

Shame in two-stage choice problems with interdependent alternatives.
Shun Okuhara; Rafik Hadfi; Takayuki Ito 0001
IEEE International Conference on Agents(ICA), 2021

Meeting the SDGs : Enabling the Goals by Cooperation with Crowd using a Conversational AI Platform.
Jawad Ahmad Haqbeen; Takayuki Ito 0001; Sofia Sahab; Rafik Hadfi; Takumi Sato; Shun Okuhara
CoRR, 2021

A Contribution to COVID-19 Prevention through Crowd Collaboration using Conversational AI & Social Platforms.
Jawad Ahmad Haqbeen; Takayuki Ito; Sofia Sahab; Rafik Hadfi; Shun Okuhara; Nasim Saba; Murataza Hofaini; Umar Baregzai
CoRR, 2021

A Node Classification Approach for Dynamically Extracting the Structures of Online Discussions.
Shota Suzuki; Takayuki Ito 0001; Ahmed Moustafa; Rafik Hadfi
Advances in Artificial Intelligence - Selected Papers from the Annual Conference of Japanese Society of Artificial Intelligence(JSAI), 2020

Usage & Application of AI-based Discussion Facilitation System for Urban Renewal in selected districts of Kabul city: Afghanistan Experimental View
HAQBEEN Jawad; ITO Takayuki; HADFI Rafik; SAHAB Sofia; NISHIDA Tomohiro; AMIRYAR Ramin
Proceedings of the Annual Conference of JSAI, 2020

Agent-Based Crowd Discussion Support System and Its Societal Experiments.
Takayuki Ito; Rafik Hadfi; Jawad Ahmad Haqbeen; Shota Suzuki; Atsuya Sakai; Naoki Kawamura; Naoko Yamaguchi
Advances in Practical Applications of Agents, Multi-Agent Systems, and Trustworthiness. The PAAMS Collection - 18th International Conference(PAAMS), 2020

Solving Tree Problems with Category Theory
Rafik Hadfi
Artificial General Intelligence - 11th International Conference(AGI), 16 Oct. 2018

Investigating Enactive Learning for Autonomous Intelligent Agents
Rafik Hadfi
CoRR, 09 Oct. 2018

Solving Tree Problems with Category Theory.
Rafik Hadfi
CoRR, 2018

An Implementation of Large-Scale Holonic Multi-agent Society Simulator and Agent Behavior Model.
Takayuki Ito; Takanobu Otsuka; Teruyoshi Imaeda; Rafik Hadfi
PRICAI 2018: Trends in Artificial Intelligence - 15th Pacific Rim International Conference on Artificial Intelligence, 2018

Modern Approaches to Agent-based Complex Automated Negotiation
Katsuhide Fujita; Quan Bai; Takayuki Ito; Minjie Zhang; Fenghui Ren; Reyhan Aydoğan; Rafik Hadfi
2017, Peer-reviewed

Traffic Simulation in Urban Networks Using Stochastic Cell Transmission Model.
Rafik Hadfi; Sho Tokuda; Takayuki Ito
Comput. Intell., 2017, Peer-reviewed

Preface
Fujita, K.; Bai, Q.; Ito, T.; Zhang, M.; Ren, F.; Aydo?an, R.; Hadfi, R.
Studies in Computational Intelligence, 01 Jan. 2017, Peer-reviewed

Ontology-Based Architecture for Intelligent Transportation Systems Using a Traffic Sensor Network.
Susel Fernandez; Rafik Hadfi; Takayuki Ito; Ivan Marsa-Maestre; Juan R Velasco
Sensors (Basel, Switzerland), 15 Aug. 2016, Peer-reviewed

Social Affinity and Facial Emotion Based Social Correlation.
Pankaj Mishra; Rafik Hadfi; Takayuki Ito 0001
IEEE International Conference on Agents(ICA), 2016

Social Influence Analysis based on Facial Emotions.
Pankaj Mishra; Rafik Hadfi; Takayuki Ito
Proceedings of the 2nd International Workshop on Social Influence Analysis co-located with 25th International Joint Conference on Artificial Intelligence (IJCAI 2016)(SocInf@IJCAI), 2016

Multilayered Multiagent System for Traffic Simulation: (Demonstration).
Rafik Hadfi; Takayuki Ito
Proceedings of the 2016 International Conference on Autonomous Agents & Multiagent Systems(AAMAS), 2016

Role of human emotions in social influence
Pankaj Mishra; Rafik Hadfi; Takayuki Ito
International Journal of Information Technology, 2016, Peer-reviewed

Adaptive Model for Traffic Congestion Prediction.
Pankaj Mishra; Rafik Hadfi; Takayuki Ito
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 2016, Peer-reviewed

Architecture for intelligent transportation system based in a general traffic ontology
Fernandez, S.; Ito, T.; Hadfi, R.
Studies in Computational Intelligence, 2016, Peer-reviewed

Holonic Multiagent Simulation of Complex Adaptive Systems.
Rafik Hadfi; Takayuki Ito
Communications in Computer and Information Science, 2016, Peer-reviewed

Multiagent Social Influence Detection Based on Facial Emotion Recognition.
Pankaj Mishra; Rafik Hadfi; Takayuki Ito
Communications in Computer and Information Science, 2016, Peer-reviewed

Low-Complexity Exploration in Utility Hypergraphs.
Rafik Hadfi; Takayuki Ito
J. Inf. Process., 2015, Peer-reviewed

Complex Multi-Issue Negotiation Using Utility Hyper-Graphs.
Rafik Hadfi; Takayuki Ito
J. Adv. Comput. Intell. Intell. Informatics, 2015, Peer-reviewed

Constraint-Based Preferences via Utility Hyper-Graphs.
Rafik Hadfi; Takayuki Ito
Multidisciplinary Workshop on Advances in Preference Handling(MPREF@AAAI), 2014

Addressing Complexity in Multi-Issue Negotiation via Utility Hypergraphs.
Rafik Hadfi; Takayuki Ito
Proceedings of the Twenty-Eighth AAAI Conference on Artificial Intelligence(AAAI), 2014

Modeling Complex Nonlinear Utility Spaces Using Utility Hyper-Graphs.
Rafik Hadfi; Takayuki Ito
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 2014, Peer-reviewed

Approximating Constraint-Based Utility Spaces Using Generalized Gaussian Mixture Models.
Rafik Hadfi; Takayuki Ito
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 2014, Peer-reviewed

Optimal Non-adaptive Concession Strategies with Incomplete Information.
Tim Baarslag; Rafik Hadfi; Koen V. Hindriks; Takayuki Ito; Catholijn M. Jonker
Recent Advances in Agent-based Complex Automated Negotiation, 2014, Peer-reviewed

On the Complexity of Utility Hypergraphs.
Rafik Hadfi; Takayuki Ito
Recent Advances in Agent-based Complex Automated Negotiation, 2014, Peer-reviewed

Uncertainty of cognitive processes with high-information load
Rafik Hadfi; Takayuki Ito
9TH INTERNATIONAL CONFERENCE ON COGNITIVE SCIENCE, 2013, Peer-reviewed

Agreement among agents based on decisional structures and its application to group formation
Rafik Hadfi; Takayuki Ito
Studies in Computational Intelligence, 2013, Peer-reviewed

Asymptotic Maximum Entropy Principle for Utility Elicitation under High Uncertainty and Partial Information.
Rafik Hadfi; Takayuki Ito 0001
Proceedings of the Twenty-Fifth International Florida Artificial Intelligence Research Society Conference, 2012

Towards collective collaborative design : An implementation of agent-mediated collaborative 3D products design system.
Rafik Hadfi; Takayuki Ito 0001; Katsuhide Fujita
2010 International Symposium on Collaborative Technologies and Systems(CTS), 2010

Misc.

Usage & Application of AI-based Discussion Facilitation System for Urban Renewal in selected districts of Kabul city: Afghanistan Experimental View
HAQBEEN Jawad; ITO Takayuki; HADFI Rafik; SAHAB Zoia; SAHAB Sofia; AMIRYAR Ramin; NISHIDA Tomohiro
人工知能学会全国大会(Web), 2020

渋滞緩和のためのクラウドベースのアーキテクチャ
ラフィックヘドゥフィ; 鳥居義高; 伊藤孝行; 徳田渉; 金森亮; 田中雅章
第77回全国大会講演論文集, 17 Mar. 2015

Low-Complexity Exploration in Utility Hypergraphs
Rafik Hadfi; Takayuki Ito
IPSJ Journal, 15 Mar. 2015

自動車間の動的経路割当メカニズムに基づく渋滞緩和システムの設計とシミュレーション
伊藤孝行; 田中雅章; ラフィックヘドゥフィ; 鳥居義高; 徳田渉; 金森亮
研究報告知能システム（ICS）, 08 Dec. 2014

Presentations

Computational Social Choice Competition (COMPSOC)
Rafik Hadfi
The Pacific Rim International Conference on Artificial Intelligence (PRICAI), 15 Nov. 2023

AI & Gender Equity
Rafik Hadfi
“Rethinking the Ethics of AI” symposium on AI, Doshisha University, Japan, 09 Nov. 2023, Invited

AI & Digital Inclusion
Rafik Hadfi
Citizen-Centric AI Systems Seminars, University of Southampton, UK, 12 Oct. 2023, Invited

AI & Digital inclusion
Rafik Hadfi
Internet Governance Forum (IGF), 09 Oct. 2023, Invited

New Perspectives on Algocratic Governance
Rafik Hadfi
Kyoto University Blockchain Study Group, 06 Oct. 2023, Invited

Deconstructing Individual and Collective Selves
Rafik Hadfi
International Workshop "Toward a Better WE", 23 Mar. 2023, Invited

The Enactive Pathway to AI
Rafik Hadfi
Meet Your KU Community, Kyoto University, 14 Feb. 2023

Society 5.0: Challenges, Implementations, and Implications
Rafik Hadfi
3rd & 4th Datascience Open Seminar, Mie University, Japan, 08 Dec. 2022, Invited

Governance by Simulation
Rafik Hadfi
The 1st International Workshop on Democracy and AI (DemocrAI 2022), 10 Nov. 2022

Theories and Practices of Multiagent Social Simulations
Rafik Hadfi
The International Institute of Applied Informatics (IIAI), Apr. 2022

New Trends of Polarization Detection Techniques in Online Discussions
Rafik Hadfi
International Conference on Knowledge, Information and Creativity Support Systems (KICSS), Invited

Active Inference: From Biological Organisms to Artificial Intelligence
Rafik Hadfi
Frontier Research Institute for Information Science, NITech, Japan, 16 Sep. 2020

Conversational Agents in Polarized Online Discussions
Rafik Hadfi
SMASH20 Summer Symposium, 16 Sep. 2020

Boundary Exploration in Enactive Artificial Agents
Rafik Hadfi
Consciousness Club, Tokyo University, 11 Jan. 2018, Invited

Boundary Exploration in Enactivist Artificial Agents
Rafik Hadfi
Science of the Self: The Agency and Body Representation Research Forum

New Paradigms in Complex Systems Simulation
Rafik Hadfi
NIT International Symposium on Future Informatics. Nagoya Institute of Technology, Japan, 27 Mar. 2017

From a constructivist epistemology to a physical theory of consciousness
Rafik Hadfi
Consciousness Club, RCAST, University of Tokyo, 17 Nov. 2016

Books and Other Publications

Recent Advances in Agent-Based Negotiation: Applications and Competition Challenges
Rafik Hadfi; Reyhan Aydoğan; Takayuki Ito; Ryuta Arisaka, Editor
Springer, 2023
Find Kyoto University's collection of books :

Modern approaches to agent-based complex automated negotiation
Fujita, Katsuhide; Bai, Quan; Ito, Takayuki; Zhang, Minjie; Ren, Fenghui; Aydoğan, Reyhan; Hadfi, Rafik, Joint work
Springer, 2017
Find Kyoto University's collection of books :

A Baseline for Nonlinear Bilateral Negotiations: The full results of the agents competing in ANAC 2014
Aydogan R, Baarslag T, Jonker CM, Fujita K, Ito T, Hadfi R, Hayakawa K., Joint work
Jul. 2016

Awards

14 Jun. 2023
The Group Decision and Negotiation (GDN), Gregory Kersten GDN Journal Best Paper Award
Gregory Kersten GDN Journal Best Paper Award on “An Agent that Facilitates Crowd Discussion”, Japan, International society
Takayuki Ito, Rafik Hadfi, and Shota Suzuki
Gregory Kersten GDN Journal Best Paper Award on “An Agent that Facilitates Crowd Discussion”, by Ito, Hadfi, and Suzuki, Group Decision and Negotiation, Vol. 31, No. 3, pp. 621-647, 2022. https://connect.informs.org/group-decision-and-negotiation/awards/gdn-award-recipients

External funds: Kakenhi

Human-Centric Autonomy from Agentic Dynamics
Grant-in-Aid for Scientific Research (B)
Basic Section 61030:Intelligent informatics-related
Kyoto University
Rafik Hadfi
From 01 Apr. 2023, To 31 Mar. 2026, Granted
Autonomy;Agency;Artificial Intelligence;Game Theory;Trust
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23H03455/

Multiagent Innovative Consensus Algorithms in Complex Negotiation Environments
Grant-in-Aid for Scientific Research (A)
Medium-sized Section 61:Human informatics and related fields
Kyoto University
伊藤孝行
From 01 Apr. 2022, To 31 Mar. 2027, Granted
マルチエージェント;自動交渉;合意;創造的合意形成;効用関数;マルチエージェントシステム;合意形成;自動交渉エージェント;コレクティブインテリジェンス;複雑な交渉環境;合意形成シミュレータ;実世界応用
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22H00533/

Measuring Group Interaction in Online Discussions and Application to Autonomous Agent Deliberation
Grant-in-Aid for Scientific Research (C)
Basic Section 61030:Intelligent informatics-related
Kyoto University
Rafik Hadfi
From 01 Apr. 2020, To 31 Mar. 2024, Granted
Agents;Conversational AI;Interaction;Deliberation;NLP;Interdependence;Online Discussion;Decision-making;Online Debates;Agent Deliberation;Predictive Deliberation;Conversational Agents;Augmented Democracy;Mutual Information;Natural Language;Group Interaction;Similarity Metrics;Collaborative Editing;Time Series Analysis;Automatic Deliberation;Entropy Methods;Artificial Agent;Information Theory;Artificial Intelligence
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20K11936/

Human-Centric Autonomy from Agentic Dynamics
Grant-in-Aid for Scientific Research (B)
Basic Section 61030:Intelligent informatics-related
Kyoto University
Rafik Hadfi
From 28 Feb. 2024, To 31 Mar. 2026, Adopted
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23K28145/

Last Updated :2024/06/26

Education

Teaching subject(s)

From 01 Apr. 2024, To 31 Mar. 2025
Practice of Information Systems
3221, Spring, Graduate School of Informatics, 2

From 01 Apr. 2024, To 31 Mar. 2025
Perspective in Informatics 5
8045, Fall, Graduate School of Informatics, 2

From 01 Apr. 2024, To 31 Mar. 2025
Basic Informatics-E2
T051, Spring, Institute for Liberal Arts and Sciences, 2

From 01 Apr. 2024, To 31 Mar. 2025
Information and Society-E2
T018, Spring, Institute for Liberal Arts and Sciences, 2

From 01 Apr. 2024, To 31 Mar. 2025
Information and Society-E2
T018, Fall, Institute for Liberal Arts and Sciences, 2

From 01 Apr. 2024, To 31 Mar. 2025
Practice of Basic Informatics-E2
T056, Fall, Institute for Liberal Arts and Sciences, 2

From 01 Apr. 2023, To 31 Mar. 2024
Perspective in Informatics 5
8045, Fall, Graduate School of Informatics, 2

From 01 Apr. 2023, To 31 Mar. 2024
Practice of Information Systems
3221, Spring, Graduate School of Informatics, 2

From 01 Apr. 2023, To 31 Mar. 2024
Basic Informatics-E2
T051, Spring, Institute for Liberal Arts and Sciences, 2

From 01 Apr. 2023, To 31 Mar. 2024
Information and Society-E2
T018, Spring, Institute for Liberal Arts and Sciences, 2

From 01 Apr. 2023, To 31 Mar. 2024
Information and Society-E2
T018, Fall, Institute for Liberal Arts and Sciences, 2

From 01 Apr. 2023, To 31 Mar. 2024
Practice of Basic Informatics-E2
T056, Fall, Institute for Liberal Arts and Sciences, 2

From 01 Apr. 2022, To 31 Mar. 2023
Practice of Information Systems
3221, Spring, Graduate School of Informatics, 2

From Apr. 2021, To Mar. 2022
Practice of Information Systems (Jp)
Spring, 情報学研究科

From Apr. 2021, To Mar. 2022
Practice of Information Systems (En)
Spring, 情報学研究科

Last Updated :2024/06/26

Administration

Faculty management (title, position)

From 01 Apr. 2024, To 31 Mar. 2025
計算機小委員会委員

From 01 Apr. 2024, To 31 Mar. 2025
情報セキュリティ作業委員会委員

From 01 Apr. 2023, To 31 Mar. 2023
システム運用WG委員

From 01 Apr. 2023, To 31 Mar. 2024
情報セキュリティWG委員

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Hadfi, Rafik

Basic Information

Faculty

Academic Degree

Research History

Language of Instruction

ID,URL

ORCID ID

J-Global ID

Researcher number

External link

researchmap URL

Research

Research Topics, Overview of the research

Research Topics

Research Interests

Research Areas

Papers

Misc.

Presentations

Books and Other Publications

Awards

External funds: Kakenhi

Education

Teaching subject(s)

Administration

Faculty management (title, position)

Academic, Social Contribution

Committee Memberships

Social Contribution