Manager Araya Inc. Advanced Technology Department Research & Development Group Toranomon 15 Mori Building, 2-8-10 Toranomon Minato-ku Tokyo, 105-0001, Japan Visiting Researcher RIKEN, Brain Science Institute Behavioral Neurophysiology Lab. 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan E-mail: oizumi atmark araya.org Last updated: Sep 18, 2018 Publications 25. Shun-ichi Amari, Ryo Karakida, Masafumi Oizumi Fisher Information and Natural Gradient Learning of Random Deep Networks arXiv:1808.07172; https://arxiv.org/abs/1808.07172 24. Shun-ichi Amari, Ryo Karakida, Masafumi Oizumi Statistical Neurodynamics of Deep Networks: Geometry of Signal Spaces arXiv:1808.07169; https://arxiv.org/abs/1808.07169 23. Shun-ichi Amari, Naotsugu Tsuchiya, Masafumi Oizumi Geometry of Information Integration. IGAIA (Information Geometry and its Applications) IV, in press. arXiv: 1709.02050; https://arxiv.org/abs/1709.02050 22. Shohei Hidaka, Masafumi Oizumi Fast and exact search for the partition with minimal information loss PLoS ONE, 13(9), e0201126, 2018. 21. Jun Kitazono, Ryota Kanai, Masafumi Oizumi Efficient Algorithms for Searching the Minimum Information Partition in Integrated Information Theory Entropy, 20(3), 173, 2018. 20. Shun-ichi Amari, Ryo Karakida, Masafumi Oizumi Information Geometry Connecting Wasserstein Distance and Kullback-Leibler Divergence via the Entropy-Relaxed Transportation Problem Information Geometry, 1(1), 1-25, 2018. 19. Andrew M. Haun, Masafumi Oizumi, Christopher K Kovach, Hiroto Kawasaki, Hiroyuki Oya, Matthew A Howard, Ralph Adolphs, Naotsugu Tsuchiya Contents of Consciousness Investigated as Integrated Information in Direct Human Brain Recordings eNeuro, ENEURO-0085-17, 2017. 18. Masafumi Oizumi, Naotsugu Tsuchiya, Shun-ichi Amari Unified Framework for Information Integration Based on Information Geometry Proceedings of the National Academy of Sciences, 113(51), 14817-14822, 2016. press release (in Japanese), blog (in English) 17. Masafumi Oizumi, Shun-ichi Amari, Toru Yanagawa, Naotaka Fujii, Naotsugu Tsuchiya Measuring Integrated Information from the Decoding Perspective PLoS Comput Biol, 12(1), e1004654, 2016. 16. Melanie Boly, Shuntaro Sasai, Olivia Gosseries, Masafumi Oizumi, Adenauer Casali, Marcello Massimini, Giulio Tononi Stimulus Set Meaningfulness and Neurophysiological Differentiation: A Functional Magnetic Resonance Imaging Study. PLoS ONE, 10(5): e0125337, 2015. 15. Masafumi Oizumi#, Larissa Albantakis#, Giulio Tononi From the Phenomenology to the Mechanisms of Consciousness: Integrated Information Theory 3.0. PLoS Computational Biology, 10, e1003588, 2014. #Equal contribution 14. Akinori Mitani, Ryo Sasaki, Masafumi Oizumi, Takanori Uka A leaky-integrator model as a control mechanism underlying flexible decision making during task switching. PLoS ONE, 8, e59670, 2013. 13. Masafumi Oizumi, Ryota Satoh, Hokto Kazama, Masato Okada Functional differences between global pre- and postsynaptic inhibition in the Drosophila olfactory circuit. Frontiers in Computational Neuroscience, 6:14, 2012. 12. Yasuhiko Igarashi, Masafumi Oizumi, Masato Okada Theory of correlation in a network with synaptic depression. Physical Review E 85, 016108, 2012. 11. Yosuke Otsubo, Kenji Nagata, Masafumi Oizumi, and Masato Okada Influence of synaptic depression on memory storage capacity. Journal of the Physical Society of Japan, 80, 084004, 2011. 10. Masafumi Oizumi, Masato Okada, Shun-ichi Amari Information loss associated with imperfect observation and mismatched decoding. Frontiers in Computational Neuroscience, 5:9, 2011. 9. Yosuke Otsubo, Kenji Nagata, Masafumi Oizumi, Masato Okada Instabilities in associative memory model with synaptic depression and switching phenomena among attractors. Journal of the Physical Society of Japan, 79, 084002, 2010. 8. Yasuhiko Igarashi, Masafumi Oizumi, Masato Okada Mean field analysis of stochastic neural network models with synaptic depression. Journal of the Physical Society of Japan, 79, 084001, 2010. 7. Ryota Satoh#, Masafumi Oizumi#, Hokto Kazama, Masato Okada Mechanisms of maximum information preservation in the Drosophila antennal lobe. PLoS ONE, 5, e10644, 2010. #Equal contribution 6. Masafumi Oizumi, Keiji Miura, Masato Okada Analytical investigation of the effects of lateral connections on the accuracy of population coding. Physical Review E, 81, 051905, 2010. 5. Masafumi Oizumi, Toshiyuki Ishii, Kazuya Ishibashi, Toshihiko Hosoya, Masato Okada Mismatched decoding in the brain. The Journal of Neuroscience, 30, 4815-4826, 2010. *Featured in This Week In The Journal. 4. Yasuhiko Igarashi, Masafumi Oizumi, Yosuke Otsubo, Kenji Nagata, Masato Okada Statistical mechanics of attractor neural network models with synaptic depression. Journal of Physics Conference Series, 197, 012018, 2009. 3. Masafumi Oizumi, Toshiyuki Ishii, Kazuya Ishibashi, Toshihiko Hosoya, Masato Okada A general framework for investigating how far the decoding process in the brain can be simplified. Advances in Neural Information Processing Systems, 21, 1225-1232, 2009. 2. Masafumi Oizumi, Yoichi Miyawaki, Masato Okada Rate reduction for associative memory model in Hodgkin-Huxley-type network. Journal of the Physical Society of Japan, 77(6), 064802, 2008. 1. Masafumi Oizumi, Yoichi Miyawaki, Masato Okada Higher order effects on rate reduction for networks of Hodgkin-Huxley neurons. Journal of the Physical Society of Japan, 76(4), 044803, 2007. Publications in Japanese 2. Masafumi Oizumi Integrated information theory of consciousness. Clinical Neuroscience, 32(8), 905-912, 2014. 1. Masafumi Oizumi, Naotsugu Tsuchiya "Does a thermometer have consciousness?" -- theory and practice towards development of a consciousness meter. LiSA, 19(4), 352-359, 2012. Education 2001-2005 B.S. Department of Physics, The University of Tokyo 2005-2007 M.S. Department of Complexity Science and Engineering, The University of Tokyo (Prof Masato Okada's Lab) 2007-2010 Ph.D. Department of Complexity Science and Engineering, The University of Tokyo (Prof Masato Okada's Lab) Work History Mar, 2017 - present, Manager Araya Inc., Basic Research Group. Mar, 2017 - present, Visiting Researcher RIKEN, Brain Science Institute, Behavioral Neurophysiology Lab. Sep, 2014 - Dec, 2014 & Apr, 2015 - Oct 2016, Visiting Researcher Monash University, Monash Biomedical Imaging, A/Prof Naotsugu Tsuchiya's Lab. Apr, 2014 - Feb, 2017, RIKEN Special Postdoctoral Researcher RIKEN, Brain Science Institute, Prof Shun-ichi Amari's Lab. Oct, 2011 - Oct, 2013, Visiting Researcher University of Wisconsin - Madison, Prof Giulio Tononi's Lab. Apr, 2011 - Mar, 2014, JSPS Superlative Postdoctoral Fellow (SPD) RIKEN, Brain Science Institute, Prof Shun-ichi Amari's Lab. Oct, 2010 - Mar, 2011, JSPS Postdoctoral Fellow (PD) RIKEN, Brain Science Institute, Prof Shun-ichi Amari's Lab. Grants and Fellowships
Awards
Misc. Kanai-Tsuchiya Radio #2, ASSC in San Diego, July, 2013 (in Japanese) Kanai-Tsuchiya Radio #1, SfN in New Orleans, Oct, 2012 (in Japanese) Report about the lecture by Dr Masataka Watanabe in ASCONE 2010 (in Japanese) On neural mechanisms of consciousness. |
Masafumi Oizumi (大泉匡史)
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大泉匡史 (日本語ページ)