Faculty Staff Information

Gouhei TANAKA

Project Associate Professor
International Research Center for Neurointelligence
Department of Mathematical Informatics, Graduate School of Information Science and Technology
Department of Electrical Engineering and Information Systems, Graduate School of Engineering

Room N308, IRCN, Faculty of Medicine Bldg. 1, The University of Tokyo, 3-7-1 Bunkyo-ku, Hongo, Tokyo 113-0033, Japan.
Phone: not available

E-mail：gtanaka＠g.ecc.u-tokyo.ac.jp

[Website]

Research theme

1. Brain-like energy-efficient information processing

   For realizing next-generation information processing systems, it is indispensable to miniaturize devices and make structures compact for enhancement of energy efficiency. We aim to develop mathematical methodologies for making brain-like computing systems energy efficient such that efficient computing is realized with low power and high speed.

2. Applications of machine learning and advanced mathematical methods

   Machine learning technologies have enabled to efficiently perform tasks that have been manually handled by people. We aim to mathematically formulate problems in fields that are not approached by machine learning and mathematical modeling, and solve the problems by combining appropriate machine learning methods and advanced mathematical techniques.

3. Mathematical studies on medical and social systems

   It is becoming possible to obtain real data on medical and social systems due to the developments of sensor devices and measurement techniques. We aim to propose effective control strategies for solving medically and socially important problems and improving quality of life.                                               

4. Network robustness

   Networked systems are ubiquitous in the world, such as the Internet, power networks, and biological networks. Networking often accompanies a risk that a partial failure causes a breakdown of the whole system. We are investigating how network robustness depends on network structure, dynamics, and element interactions. Our aim is to develop a design method of robust networks and a recovery method of damaged networks.

Recent Publications

G. Tanaka, R. Nakane, T. Takeuchi, T. Yamane, D. Nakano, Y. Katayama, and A. Hirose
Spatially Arranged Sparse Recurrent Neural Networks for Energy Efficient Associative Memory
IEEE Transactions on Neural Networks and Learning Systems, vol. 31, issue 1, pp. 24-38 (2020). DOI: 10.1109/TNNLS.2019.2899344

A. Matsuki and G. Tanaka
Intervention threshold for epidemic control in susceptible-infected-recovered metapopulation models
Physical Review E, vol. 100, 022302 (2019).

G. Tanaka et al.
Recent Advances in Physical Reservoir Computing: A Review
Neural Networks, vol. 115, pp. 100-123 (2019).

Z. Tong and G. Tanaka
Hybrid pooling for enhancement of generalization ability in deep convolutional neural networks
Neurocomputing, vol. 333. pp. 76-85 (2019).

G. Tanaka, E. Dominguez-Huttinger, P. Christodoulides, K. Aihara, and R. J Tanaka
Bifurcation analysis of a mathematical model of atopic dermatitis to determine patient-specific effects of treatments on dynamic phenotypes
Journal of Theoretical Biology, vol. 448, pp. 66-79 (2018).

Faculty Staff Information

Tetsuya J. KOBAYASHI

Professor
Institute of Industrial Science, The University of Tokyo
Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The University of Tokyo
Department of Mathematical Informatics, Graduate School of Information Science and Technology, The University of Tokyo

Room Ce-501, Institute of Industrial Science, The University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8505, Japan.
Phone: +(81)-3-5452-6798 (Extension: 56798)
Fax: +(81)-3-5452-6798

E-mail：tetsuya＠sat.t.u-tokyo.ac.jp

[Website]

Research topics

Systems biology, Quantitative biology, Bioinformatics

Relevant Publications

・Hideki Ukai, Tetsuya J. Kobayashi, Mamoru Nagano, Koh-hei Masumoto, Mitsugu Sujino, Takao Kondo, Kazuhiro Yagita, Yasufumi Shigeyoshi and Hiroki R. Ueda:Melanopsin-dependent photo-perturbation reveals desynchronizationunderlying the singularity of mammalian circadian clocks, Nature CellBiology, Vol. 9, No.11, pp. 1327-1334, October 2007.

・Tetsuya J. Kobayashi: Implementation of Dynamic Bayesian Decision Making by Intracellular Kinetics, Physical Review Letters, Vol.104, p.0228104, June 2010.

・Tetsuya J. Kobayashi & Yuki Sughiyama: Fluctuation Relations of Fitness and Information in Population Dynamics, Physical Review Letters, Vol. 115, pp. 238102, December 2015.

Faculty Staff Information

Takashi KOHNO

Professor
Institute of Industrial Science, The University of Tokyo
Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The University of Tokyo
Department of Mathematical Informatics, Graduate School of Information Science and Technology, The University of Tokyo

Room Ee-512, Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan.
Phone: +(81)-3-5452-6900 (Extension: 56900)
Fax: +(81)-3-5452-6901

E-mail：kohno＠sat.t.u-tokyo.ac.jp

[Website]

Research topics

Neuromorphic systems, Neuronal system modeling

Relevant Publications

Takashi Kohno and Kazuyuki Aihara:
Mathematical-model-based design method of silicon burst neurons, Neurocomputing, in press.

Takashi Takemoto, Takashi Kohno, and Kazuyuki Aihara:
MOSFET Implementation of Class I* Neurons Coupled by Gap Junctions, Journal of Artificial Life and Robotics, Vol. 10, No. 1, pp. 1-5, July 2006.

Takashi Kohno and Kazuyuki Aihara:
A MOSFET-based model of a Class 2 Nerve membrane, IEEE Transactions on Neural Networks, Vol. 16, No. 3, pp. 754-773, May 2005.

Faculty Staff Information

Kazuyuki AIHARA

Professor
Institute of Industrial Science, The University of Tokyo
Department of Mathematical Informatics, Graduate School of Information Science and Technology, The University of Tokyo

Room Ce-601, Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan.
Phone: +(81)-3-5452-6691 (Extension: 56691)
Fax: +(81)-3-5452-6692 (Extension: 56692)

Room 353, Faculty of Engineering Bldg.6, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.
Phone: +(81)-3-5841-6910 (Extension: 26910)
Fax: +(81)-3-5841-8594

E-mail：aihara＠sat.t.u-tokyo.ac.jp

[Website]

Research Topics

Mathematical Modeling for Complex Systems, Chaotic and Optoelectronic　Neural Networks, Mathematics of Artificial Intelligence