Takashi Isozaki

We are now using more data than ever before, and this usage is sure to go on increasing in the future. Many examples of mass-data can be listed, such as data related to geoenvironmental assessments, gene expressions, and buying history. It is easy to imagine that success in utilizing such data would have a great influence on the future of humanity. However, humankind does not currently have the ability to fully extract information from data, which I believe is a major problem. I have addressed this problem by treating data that have many variables dependent on each other using probabilistic graphical models and methodologies of physics.

Data Analysis / Statistical Inference / Causal Information Analysis / Open Systems-data Analytics





Selected Publications

Isozaki, T. and Kuroki, M. (2017), Learning Causal Graphs with Latent Confounders in Weak Faithfulness Violations, New Generation Computing, Vol. 35, Issue 1, pp. 29-45.

Funabashi, M., Hanappe, P., Isozaki, T., Maes, A.M., Sasaki, T., Steels, L. and Yoshida, K. (2015), Foundation of CS-DC e-laboratory: Open Systems Exploration for Ecosystems Leveraging, Proceedings of CS-DC 2015, Springer.

Isozaki, T. (2014), A Robust Causal Discovery Algorithm against Faithfulness Violation, Trans. of the Jpn. Soc. for AI, Vol. 29, No.1, pp. 137-147.


After studying theoretical physics at the Department of Physics, Tokyo Institute of Technology, and through the masters program in physics at the Faculty of Science, Tohoku University, Isozaki worked at a precision instruments manufacturer, where he carried out research on optical and electronic devices before moving on to apply probabilistic models to artificial intelligence. After earning a PhD in engineering from the Graduate School of Information Systems at the University of Electro-Communications, he joined Sony CSL. Isozaki is currently a researcher and doing basic research on statistical estimation methods and causal analysis using a physics approach, and the applications of these techniques to data analysis and AI. He also conducts research into Open Systems Data Analytics, exploring methodologies for the data analysis of open systems.