主要な業績

学術論文

Preprint

1. Kazuki Takahashi, Tomoki Fukai, Yutaka Sakai, Takashi Takekawa, "Goal-oriented infernce of environment from redundant observations", arXiv, 2305.04432, May 2023. https://arxiv.org/abs/2305.04432 

2. Takashi Takekawa, Hirotaka Asai, Noriaki Ohkawa, Masanori Nomoto, Reiko Okubo-Suzuki, Khaled Ghandour, Masaaki Sato, Yasunori Hayashi, Kaoru Inokuchi, Tomoki Fukai, "HOTARU: Automatic sorting system for large scale calcium imaging data", bioRxiv, 487077, April, 2022.  https://doi.org/10.1101/2022.04.05.487077 

3. Takashi Takekawa, "Clustering of non-Gaussian data by variational Bayes for normal inverse Gaussian mixture models", arXiv, 2009.06002, Sep. 2020. https://arxiv.org/abs/2009.06002 

4. Takashi Takekawa, Hirotaka Asai, Noriaki Ohkawa, Masanori Nomoto, Reiko Okubo-Suzuki, Khaled Ghandour, Masaaki Sato, Yasunori Hayashi, Kaoru Inokuchi, Tomoki Fukai, "Automatic sorting system for large calcium imaging data", bioRxiv, 215145, Nov, 2017.  https://doi.org/10.1101/215145 

2013 年度〜

1. Kazkuki Takahashi, Takashi Takekawa, "Discriminant Laplacian Eigenmaps by the Approximation of Discriminant  Analysis using Similarity", Nonlinear Theory and Its Applications, E13-N, 2 (2022). https://doi.org/10.1587/nolta.13.300 

2. Takashi Takekawa, "Fast parallel calculation of modified Bessel function of the second kind and its derivatives", SoftwareX, 17, 100923, (2022). https://doi.org/10.1016/j.softx.2021.100923 

3. Masaaki Sato, Kotaro Mizuta, Tanvir Islam, Masako Kawano, Yukiko Sekine, Takashi Takekawa, Daniel Gomez-Dominguez, Alexander Schmidt, Fred Wolf, Karam Kim, Hiroshi Yamakawa, Masamichi Ohkura, Min Goo Lee, Tomoki Fukai, Junichi Nakai, Yasunori Hayashi, "Distinct Mechanisms of Over-Representation of Landmarks and Rewards in the Hippocampus", Cell Report, 32, 1, (2020). https://doi.org/10.1016/j.celrep.2020.107864 

4. 大川宣昭，竹川高志，野本真順，井ノ口馨，脳深部 Ca2+ イメージングへの誘い，日本神経回路学会誌，77, 2, 74-86 (2020).  https://doi.org/10.3902/jnns.27.74 

5. Khaled Ghandour, Noriaki Ohkawa, Chi Chung Alan Fung, Hirotaka Asai, Yoshito Saitoh, Takashi Takekawa, Reiko Okubo-Suzuki, Shingo Soya, Hirofumi Nishizono, Mina Matsuo, Makoto Osanai, Masaaki Sato, Masamichi Ohkura, Junichi Nakai, Yasunori Hayashi, Takeshi Sakurai, Takashi Kitamura, Tomoki Fukai, and Kaoru Inokuchi, "Orchestrated ensemble activities constitute a hippocampal memory engram", Nature Comunications, 10, 2637 (2019).  https://doi.org/10.1038/s41467-019-10683-2

6. Mami Kaneko, Takefumi Hitomi, Takashi Takekawa, Takuya Tsuji, Yo Kishimoto, Shigeru Hirano, "Effects of Voice Therapy on Laryngeal Motor Units During Phonation in Chronic Superior Laryngeal Nerve Paresis Dysphonia", Journal of Voice, 32, 729-733 (2018).  http://doi.org/10.1016/j.jvoice.2017.08.026

7. 小澤勲男・竹川高志，"大きさ推定における事前バイアスとアンカリング効果 ―情報量の少ない固有名詞を用いた例―"，電子情報通信学会誌D，101，405-413 (2018). http://doi.org/10.14923/transinfj.2017HAP0008 

8. Takashi Handa, Takashi Takekawa, Rie Harukuni, Yoshikazu Isomura and Tomoki Fukai, "Medial frontal circuit dynamics represents probabilistic choices for unfamiliar sensory experience", Cerebral Cortex, 27, 3818-3831 (2017). https://doi.org/10.1093/cercor/bhx031 

9. Takashi Takekawa, Keisuke Ota, Masanori Murayama and Tomoki Fukai, "Spike detection from noisy neural data in linear-probe recordings", European Journal of Neuroscience, 39, 1943-1950 (2014).  https://doi.org/10.1111/ejn.12614 

10. Yoshikazu Isomura, Takashi Takekawa, Rie Harukuni, Takashi Handa, Hidenori Aizawa, Masahiko Takada, and Tomoki Fukai, "Reward-modulated motor information in identified striatum neurons", Journal of Neuroscience, 33, 10209-10220 (2013).  https://doi.org/10.1523/JNEUROSCI.0381-13.2013 

11. Hidenori Aizawa, Shin Yanagihara, Megumi Kobayashi, Kazue Niisato, Takashi Takekawa, Rie Harukuni, Thomas McHugh, Tomoki Fukai, Yoshikazu Isomura, Hitoshi Okamoto, "The synchronous activity of lateral habenular neurons is essential for regulating hippocampal theta oscillation", Journal of Neuroscience, 33, 8909-8921 (2013).   https://doi.org/10.1523/JNEUROSCI.4369-12.2013 

〜 2012 年度

1. Takashi Takekawa, Yoshikazu Isomura, Tomoki Fukai, "Spike sorting of heterogeneous neuron types by multimodality-weighted PCA and explicit robust variational Bayes", Frontiers in Neuroinformatics, 6:5, 1-13 (2012).  https://doi.org/10.3389/fninf.2012.00005 

2. Takashi Takekawa, Yoshikazu Isomura, Tomoki Fukai, "Accurate spike-sorting for multiunit recordings", European Journal of Neuroscience, 31, 263-272 (2010).  https://doi.org/10.1111/j.1460-9568.2009.07068.x 

3. Takashi Takekawa, Tomoki Fukai, "A novel view of the variational Bayesian clustering", Neurocomputing, 72, 3366-3369 (2009). https://doi.org/10.1016/j.neucom.2009.04.003 

4. Takashi Takekawa, Toshio Aoyagi, Tomoki Fukai, "Synchronous and asynchronous bursting states: role of intrinsic neural dynamics", Journal of Computational Neuroscience, 23, 189-200 (2007).  https://doi.org/10.1007/s10827-007-0027-9 

5. Takashi Takekawa, Toshio Aoyagi, Tomoki Fukai, "Synchronization Properties of Slow Cortical Oscillations", Progress of Theoretical Physics, S161, 356-359 (2006).  https://doi.org/10.1143/PTPS.161.356 

6. Takashi Takekawa, Toshio Aoyagi, Tomoki Fukai, "Influences of synaptic location on the synchronization of rhythmic bursting neurons", Network: Computation in Neural Systems, 15, 1-12 (2004).  https://doi.org/10.1088/0954-898X_15_1_001 

7. Toshio Aoyagi, Takashi Takekawa, Tomoki Fukai, "Gamma rhythmic bursts: Coherence control in networks of cortical pyramidal neurons", Neural Computation, 15, 1035-1061 (2003).  https://doi.org/10.1162/089976603765202659 

知的財産権

1. 竹川高志，高橋春輝，酒井裕，深井朋樹「最適化装置、最適化方法、及び最適化プログラム」，工学院大学・沖縄科学技術大学院大学，特願2021-021962，2021年2月15日出願。

2. 竹川高志，「情報処理装置、方法、及びプログラム」，工学院大学，特許6787561号（特願2016-083093），2016年4月18日出願。

3. 竹川高志・山川宏，「情報処理装置、情報処理プログラム」，理化学研究所・富士通，特許6029101号（特願2012-248839），2012年11月12日出願．

4. 角谷寛・南一成・竹川高志，「睡眠障害実験システム」，JST，特許第4726544号（特願2005-154821），2005年5月27日出願．

研究費獲得実績

2013 年度〜

1. スパースモデリングと画像処理による高速な汎用セルソーティング手法の開発，科研費 基盤C（代表），2019-2021年度

2. 神経細胞の活動動態検出の自動化，CREST「生命動態の理解と制御のための基盤技術の創出」井ノ口チーム（分担），2016-2018年度．

3. スパース正則化モデルによる神経回路の光計測データからの信号抽出，科研費 若手B（代表），2014-2015年度．