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Izumi Lab
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The lab explores society and the economy through human behavior data and simulation.
AboutAbout the lab
Reading society and the economy through human behavior.
Izumi Lab analyzes human behavior data collected in the real world and builds models from it, then uses those models to simulate collective behavior and socioeconomic phenomena.
Its main research focus is analyzing economic trends, including financial markets, and designing economic institutions and policies.
The lab works on artificial markets, which are virtual markets built inside a computer, and on text mining, which analyzes markets using the text of economic news articles and Bank of Japan reports.
The lab conducts its research in collaboration with financial institutions.
Key terms
- Artificial market
- A virtual market created by running trading programs (agents) inside a computer
- Agent
- A program built to make its own decisions and act on them. In an artificial market, agents play the role of dealers
- Text mining
- A technology that uses computers to analyze large amounts of text and extract useful information and trends
NewsLab news
Held a lab tour for prospective master's and doctoral students
Introduced the lab at the admissions information session for the Department of Systems Innovation
A doctoral student won the Excellent Research Award at the GPIF student awards
Doctoral and master's students won an Excellence Award at the Annual Conference of the Japanese Society for Artificial Intelligence
ResearchResearch themes
The lab analyzes and models human behavior data from the real world, and simulates collective behavior and socioeconomic phenomena. Its main research focus is analyzing economic phenomena, including financial markets, and designing economic institutions and policies.
*Illustrative imageArtificial Market Simulation
The lab runs experiments in virtual markets where programs acting as virtual dealers (agents) trade with one another. It has worked to clarify the mechanisms behind the formation and collapse of bubbles, and has built a system that supports decisions on market intervention policies.
*Illustrative imageFinancial Text Mining
In collaboration with financial institutions, the lab developed a method for analyzing long-term market trends from the text of the Bank of Japan's Monthly Report of Recent Economic and Financial Developments. It has also shown that, combined with artificial markets, this method could potentially be used in systems that support policy decisions.
*Illustrative imageSocioeconomic Simulation and Data Analysis
The lab aims to build models of the relationship between economy-wide and society-wide data, such as marketing data and market data, and the social behavior of individuals. It researches techniques for building economic simulation models that estimate what kinds of economic phenomena can arise from interactions between individuals.
MembersFaculty
Izumi Lab's members include faculty, project researchers and JSPS Research Fellows, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorKiyoshi IzumiPublications ↗
- Assistant ProfessorYuri MurayamaPublications ↗
VoicesStudent voices
Compiled from answers by students who were in the lab. Ratings and reviews reflect individual students' experiences, not the lab's official views.
Students who take part in an interview may receive a thank-you gift worth ¥1,000, regardless of what they say.
On a 4-point scale, ● marks where students' answers fall
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Ohsawa LabFaculty of Engineering, Department of Systems InnovationSystems design research using knowledge engineering methods …The information on this page is compiled by the LabLog team from the lab's public information and interviews. For corrections or removal requests, please contact LabLog, not the lab.
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: “Scramble from above, SHIBUYA SKY ( ) (cropped)” Sei F from Tokyo, Japan / CC BY-SA 2.0 (cropped)
- Artificial Market Simulation: “Monthly mean of VIX volatility index” Ldecola / CC BY-SA 4.0 (cropped)
- Financial Text Mining: “Bank of Japan building (16972)” Syced / CC0 (cropped)
- Socioeconomic Simulation and Data Analysis: “Can Tho City - Street Market, vegetable” Franzfoto / CC BY-SA 3.0 (cropped)
- Related lab (鳥海研究室): “Social Network Visualization” Martin Grandjean / CC BY-SA 4.0 (cropped)
- Related lab (藤井研究室): “Tokyo by night 2011” Nalilord / CC BY-SA 3.0 (cropped)
- Related lab (川崎研究室): “OverviewAPMTerminalsMV2” Zandcee / CC BY-SA 3.0 (cropped)
- Related lab (大澤研究室): “Wikidata in the Linked Open Data cloud” Thomas Shafee / CC BY 4.0 (cropped)
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