Yoichi Chikahara

近原 鷹一





Researcher, Ph.D. (Informatics)
NTT Communication Science Laboratories



ABOUT ME

I am a researcher at NTT Communication Science Laboratories (a research institute in the Japanese telephone company, named NTT). I received a PhD in informatics from Kyoto University under the supervision of Hisashi Kashima. Prior to joining NTT, I was majoring in systems biology and bioinformatics at Keio University and the University of Tokyo, supervised by Akira Funahashi and Satoru Miyano.
I am working at the intersection between causal inference and machine learning. My current research aims at making scientific knowledge discoveries and achieving reliable machine learning via causal inference. I am particularly interested in developing interpretable approaches to causal graph discovery and treatment effect estimation. I believe that these causal inference tasks offer an essential foundation for future reliable machine learning, including, but not limited to, fairness-aware machine learning.

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Research map (JP / EN)


RECENT WORK

Topic 1

Feature Selection for Discovering Distributional Treatment Effect Modifiers
Key Words: Treatment Effect Estimation, Kernel Methods, Multiple Testing
JP EN FR

Topic 2

Learning Individually Fair Classifier with Path-Specific Causal-Effect Constraint
Key words: Machine Learning and Fairness, Path-Specific Causal Effects
JP EN FR

Topic 3

Causal Inference from Time Series Data via Supervised Learning
Key words: Time Series Analysis, Granger Causality, Kernel Methods
JP EN FR






Biography

2015.4 -

Researcher, Ph.D. (Informatics).
NTT Communication Science Laboratories

2019.10 - 2022.9

Kashima Lab., Dept. of Intelligence Science & Technology, Graduate School of Informatics, Kyoto University.

2013.4 - 2015.3

Miyano Lab., Dept. of Computer Science, Graduate School of Information Science and Technology, The University of Tokyo.

2009.4 - 2013.3

Funahashi Lab., Dept. of Biosciences and Informatics, Faculty of Science and Technology, Keio University.

CONTACT



MAIL: chikahara.yoichi [#at] gmail.com

Office: 2-4 Hikaridai, Seika-cho, Soraku-gun, Kyoto, 619-0237, JAPAN
Learning and Intelligent Systems Group
Innovative Communication Laboratory
Communication Science Laboratories
NTT (NIPPON TELEGRAPH AND TELEPHONE CORPORATION)