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Agreement Informatics Lab
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Building a new social system in which AI and people reach agreement and cooperate.
AboutAbout the lab
From agreement between AI and people to a new society.
The Agreement Informatics Lab focuses on collective intelligence in which people and computers or AI agents reach agreement and cooperate with one another.
By having people reach agreement and cooperate with AI agents that have become highly accurate, the lab aims to bring out an unprecedented collective intelligence and realize new social systems.
The lab pursues both theoretical research that aims at lofty ideals and the commercialization of that research as business.
Key terms
- Agent
- An AI, software program, or other entity that makes its own decisions and acts on them
- Mechanism design
- Designing rules so that even when each participant acts to benefit themselves, the outcome is desirable for society as a whole
- Large language model
- An AI that learns from large amounts of text and can understand and generate text like a human. Examples include ChatGPT
ResearchResearch themes
Centered on AI and multi-agent AI, the lab studies consensus-building support, computational mechanism design, automated negotiation agents, large language models, and social simulation, and works on putting them into practice in society.
*Illustrative imageUsing AI to Help Large Groups Reach Consensus
Using AI agents based on large language models, the lab builds systems that efficiently gather the opinions of many people and support consensus building, verifies them through social experiments, and goes as far as turning them into businesses.
*Illustrative imageDesigning the Mechanisms of Society
From an informatics perspective, the lab studies computational mechanism design, which uses game theory and microeconomics to design socially desirable mechanisms, as well as auction theory.
*Illustrative imageAI That Negotiates on Behalf of People
The lab designs and implements agents that negotiate on behalf of people, as well as mechanisms for making social choices through negotiation. It also hosts an international competition for automated negotiation agents.
*Illustrative imageAdvanced Conversational AI Agents
Using natural language processing, including large language models, and machine learning techniques, the lab implements and applies advanced conversational AI agents.
MembersFaculty
The faculty of the Agreement Informatics Lab are Professor Takayuki Ito, Program-Specific Associate Professor Rafik Hadfi, Lecturer Ryuta Arisaka, Assistant Professor Shiyao Ding, Program-Specific Assistant Professor Sofia Sahab, and Program-Specific Assistant Professor Zehua Si.
- ProfessorTakayuki Ito
- Program-Specific Associate ProfessorHADFI Rafik
- LecturerRyuta Arisaka
- Assistant ProfessorShiyao Ding
- Program-Specific Assistant ProfessorSAHAB Sofia
- Program-Specific Assistant ProfessorSI Zehua
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Discussion Between National Consensus Commission And Nationalist Likeminded Alliance (PID-0002082)” Press Information Department / Public domain (cropped)
- Using AI to Help Large Groups Reach Consensus: “Assen Deliberation-Overleg3 Bert Kiewiet” Gouwenaar / CC0 (cropped)
- Designing the Mechanisms of Society: “Crosby Garrett Helmet on auction at Christies” Portable Antiquities Scheme from London, England / CC BY 2.0 (cropped)
- AI That Negotiates on Behalf of People: “CMO - Comissão Mista de Planos, Orçamentos Públicos e Fiscalização” Senado Federal / CC BY 2.0 (cropped)
- Advanced Conversational AI Agents: “Otonaroid® (adult android), a teleoperated android robot that lets you talk to other through an android, exhibited at Miraikan ( by Franklin Heijnen)” Franklin Heijnen / CC BY-SA 2.0 (cropped)
- Related lab (Collective Intelligence Systems Lab): “DataAppliedWeb” Marksenizer / CC BY-SA 3.0 (cropped)
- Related lab (Human-Robot Interaction Lab): “Telenoid™ R4 (tele-presence robot for communication) by ATR Hiroshi Ishiguro Laboratory, exhibited at Miraikan ( by Franklin Heijnen)” Franklin Heijnen / CC BY-SA 2.0 (cropped)
- Related lab (Nonlinear Dynamics and Computational Physics Group): “Mandel zoom 11 satellite double spiral” Created by Wolfgang Beyer with the program Ultra Fractal 3. / CC BY-SA 3.0 (cropped)
- Related lab (Theoretical Neuroscience and Mathematics of Nonequilibrium Systems Group): “Neuron Heart” Piku4chemia / CC BY-SA 4.0 (cropped)
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