Professor Takashi Ikegami

I have been working on the field of artificial life for more than 20 years. Evolution of genetic codes, mutation rates and cooperative relationships is one the main targets of my research. For example, complexity of coupled cognitive systems have been studied using dynamical recognizers and other recurrent neural (often embodied) systems. Recently, I am interested in constructing artificial life in the real world. To fruition the concepts developed through the study of artificial life, such as "autonomy", "enaction", "sustainability", and "evolvability", I have newly started several experimental and conceptual works, using an android (called Alter3), a large scale Boids model and other bio-chemical experiments.

Takashi Ikegami, Atsushi Masumori, jonhsmith and Norihiro Maruyama, in the proceedings of Artificial Life 2021 (Prague). Can Mutual Imitation Generate Open-Ended Evolution?

Takashi Ikegami, Yasuhiro Hashimoto and Mizuki Oka. Open-Ended Evolution and a Mechanism of Novelties in Web Services. Artificial Life, 2019 25:2, pp.168-177.

Takashi Ikegami, Yoh-ichi Mototake, Shintaro Kobori, Mizuki Oka, Yasuhiro Hashimoto: Life as an emergent phenomenon: studies from a large-scale boid simulation and web data, Phil.Roy.Soc.,375, pp.1-15, 2017.

Takashi Ikegami, Mizuki Oka: Massive Data Flows: Self-organization of energy, material, and information flows. 6th International Conference on Agents and Artificial Intelligence ICAART 2014, pp. 237-242, 2014.

Takashi Ikegami, A Design for Living Technology: Experiments with the Mind Time Machine. Artificial Life, Summer/Fall 2013, Vol. 19, No. 3(4), pp. 387-400, 2013.

Martin M. Hanczyc and Takashi Ikegami: Chemical Basis for Minimal Cognition. Artificial Life. 16(3): 233-243, 2010.

Takashi Ikegami, Life-long Achievement Award, Artificial Life 2021.

Postdocs

Norihiro Maruyama

Norihiro Maruyama is a Postdoc at Ikegami laboratory. He is interested in the mind underlying sensing behavior by the system (human, animal or artificial life) in open environment. His research is conducted by wireless sensor network comprised of autonomous sensing nodes. Current works are making wireless sensor network, simulation of it and experiment in open space.

Atsushi Masumori

Atsushi Masumori is a Postdoc at Ikegami laboratory. He is interested in an embodied mind. His current main research is a learning and memory on embodied cultured biological neural cells using closed-loop system where the cultured neural cells and an external device (for example, a robot) are interconnected. He is also working on a cognitive experiment using HMD (head-mounted display), headphone or other sensing devices. He is also interested in an artificial self-assembly system and developing some self-assembly systems; for example, a passively foldable self-folding device.

Hiroki Kojima

Researcher. He obtained Ph.D. in Physics from the University of Tokyo. Now, he is mainly working on the information-theoretical analysis of complex systems, such as collective behaviors of microbes, dyadic human interactions, and generative deep neural networks.

Itsuki Doi

Born 1989 in Hyogo, Japan. Ph.D. in Arts and Sciences (Graduate School of Arts and Sciences, The University of Tokyo.) He studied molecular biology and neuroscience at Tokyo University of Science as undergraduate. His main research topic is relations between individual behaviors and the collective behaviors of a social insect, and also a subjective time which emerges in an artificial system. He has also been working as a sound artist. Recent his works include "Blues" (installation, 2017), "Peeling Blue" (CD, 2018), "Bee Wee" (installation, 2020), "Revision of Shadows" (installation, 2021). Also, he is active in sound productions and software programmings for the exhibition/installation. Major recent works include Alter"(sound/software programming, Award of Distinction of Ars Electronica).

http://cotofu.com

Michael Crosscombe

Michael Crosscombe is a JSPS International Research Fellow at Ikegami laboratory. He is interested in emergent collective intelligence. His research seeks to discover the role that information bottlenecks play in the emergence of collective intelligence. Previously, he has developed models for collective decision-making in multi-agent systems and robot swarms.

External Lab. Members

Dr. Mizuki Oka

Dr. Mizuki Oka recieved the International Baccalaureate at the United World College of the Adriatic in 1998. Studied computer science at the University of Tsukuba where she obtained the Doctor of Engineering in 2008. Served also as a research fellow for the Japan Society for the Promotion of Science from 2005 to 2008. Currently working as a post-doc at the Center for Knowledge Structuring at the University of Tokyo in Japan. During her studies, she worked as an intern at several research institutes and companies including Google Inc. (2005.8-2005.9), and Microsoft Research Asia (2007.4-2007.9) and engaged in several projects related to extraction of knowledge from the Web. Currently, she is interested in applying Aritificial Life to understanding the dynamics of a Web system.

Dr. Yasuhiro Hashimoto

Doctor of Engineering, University of Tokyo

Dr. Alex Woodward

Dr. Alexander Woodward obtained a PhD majoring in Computer Science from the University of Auckland. During this time his main focus was on Computer Vision and real-time stereo 3D reconstruction. He is currently a Post-doctoral fellow at the Ikegami lab where he has collaborated with Takashi Ikegami on video-feedback systems sustained by recurrent neural network dynamics. His interests revolve around the study of complex systems, artificial life, parallel processing, machine learning, the brain, robotics, audio and music synthesis. Feel free to contact him to discuss any of these topics!

Dr. Ken Suzuki

Doctor of Philosophy, University of Tokyo

Toshiki Abe

Toshiki Abe was a master student conducting research on the boundary between society and person, especially the personal decision making based on brain activity. His main research are the re-organization of behavior based on the analysis of monkey’s brain activity using ECoG data and the analysis of communication in mailing list of many project teams of his association. His unique perspective and method are the constructive approach to simulate society in real world to understand what society is. He consider the society as Life and try to know the mechanism of self-organization of society and human communication.

Hiroshi Sakuma

Hiroshi Sakuma received the degree of Master of Arts and Sciences from the University of Tokyo, where he studied Virtual Reality and Avatars. He is also the director at the Osaka Pavilion promotion committee for the 2025 World Exposition.

https://hiroshi-sakuma.com

Doctoral Students

Daichi Saito

Daichi Sato is a Ph.D student at Ikegami laboratory. 

Hiroki Sato

Hiroki Sato is a Ph.D student at Ikegami laboratory. His backgrounds are paleontology and geology. He is interested in theory of evolutionary. His current research project is about evolution of artificial systems, especially evolution of internet memes. 

johnsmith

johnsmith is a PhD student at Ikegami laboratory. He studied Media Art and Media Creation (Media Archaeology, Device Art, Human Computer Interaction). He has a background in Art and Engineering.

Part-time lectuarer of  Tokyo Art University 

http://johnsmithstudios.com

Ryuzo Hirota

Ryuzo Hirota is a Ph.D student at Ikegami Lab. He studied computer science and cognitive science at the University of Tokyo, and he is now interested in the Life-mind continuity thesis, Autopoiesis, and Enactivism. He is also working on transdisciplinary studies which integrate artificial life and philosophy, especially phenomenology.

Tanner Lund

Tanner is a doctoral student at Ikegami Laboratory and a software industry professional of 8+ years. Among his interests are complex heterogeneous multi-agent systems, risk, uncertainty, music, communication, the features of life and artifice, and most fundamentally: learning.

Ryosuke Takata

Ryosuke Takata is a Ph.D student at Ikegami laboratory. He studies the emergence of collectivity through interactions between evolving or learning agents. He is also interested in autonomously generating "playful" interactions. 

https://bonochof.github.io

Master's Students

Yoh Suzuki

Yoh Suzuki is a master's student at Ikegami laboratory.

Riku Adachi

Riku Adachi is a master's student at Ikegami laboratory.

Takahide Yoshida

Takahide Yoshida is a master's student at Ikegami laboratory.

Suzune Baba

Suzune Baba is a master's student at Ikegami laboratory.

Ilya Horiguchi

Ilya Horiguchi is a master's student at Ikegami laboratory.


Intern Members

Year Name

2018 Fitahiana Karen Ramambazafy

2016 Badrinath Singhal

2014 Federico Da Rold

2014 Miguel Aguilera

2014 Lana Sinapayen

Almuni Postdocs

Year Name Current Affiliation

2018 Yasuhiro Hashimoto Ph.D.

2013 Alex Woodward Ph.D.

2013 Mizuki Oka Ph.D. Assistant Professor, Tsukuba University

2012 Tom Froese Ph.D. Assistant Professor, Okinawa institute of science and technology graduate university

2012 Geoff Nitschke Ph.D. Assistant Professor, Capetown University

2011 Ryoko UNO Ph.D. Associate Professor, Tokyo University of Agriculture and Technology

2009 Marieke ROHDE Ph.D. Department of Cognitive Neuroscience, University of Bielefeld

Hiroyuki IIZUKA Ph.D. Associate professor, Department of Electronics and Information Engineering, Hokkaido University

Dowman MIKE Ph.D. Image Scope

Jean-Julien AUCOURUTURIER Ph.D. LEAD lab, University of Burgundy, Dijon, France.

Eric SILVERMAN Ph.D.

Chris SALZBERG Ph.D.

Hisanao TAKAHASHI Ph.D.

Hiroshi ITOH Ph.D.

Almuni Ph.D

Year Name Current Affiliation

2019 Itsuki Doi Project Researcher at Ikegami laboratory; Senior Researcher at Alternative Machine Inc.

2019 Atsushi Masumori Project Researcher at Ikegami laboratory; Senior Researcher at Alternative Machine Inc.

2018 Norihiro Maruyama Project Researcher at Ikegami laboratory

2018 Hiroki Kojima Project Researcher at Ikegami laboratory

2018 Lana Sinapayen Associate Researcher at Sony CSL

2016 Yhoichi Mototake

2015 Julien Hubert

2015 Olaf Witkowski

2013 Eiko MATSUDA Ph.D Research fellow at Research Center for Advanced Science and Technology, the University of Tokyo.

2013 Frédéric DABANSENS

2013 Yoshiaki SENDA

2012 Yuki SATO Ph.D Green Computing systems research organization Global Robot Academia, Waseda University

2011 Yuta OGAI Ph.D. Asistant Professor in Department of Electronics and Mechatronics, Faculty of Engineering, Tokyo Polytechnic University

Kenta SUZUKI Ph.D.

Duraid MADINA Ph.D. Research Scientist at RIKEN

2009 Kohei NAKAJIMA Ph.D. Assistant Professor, The Hakubi Center for Advanced Research, Kyoto University

Ken SUZUKI Ph.D. Sargasso Inc. The University of Tokyo

2008 Hiroki MATSUNO Ph.D.

2007 Keisuke SUZUKI Ph.D. Sackler Centre for Consciousness Science, University of Sussex, Brighton, UK

Gentaro MORIMOTO Ph.D. RIKEN, HPCI Program for Computational Life Sciences

Etsushi NAMEDA Ph.D.

2005 Kazutoshi SASAHARA Ph.D. Assistant Professor, Nagoya University

2004 Hiroyuki IIZUKA Ph.D. Associate professor, Department of Electronics and Information Engineering, Hokkaido University

2003 Gen MASUMOTO Ph.D. RIKEN, Advanced Center for Computing and Communication

2001 Koh HASHIMOTO Ph.D.

Naoaki ONO Ph.D.

Ichiro IGARI Ph.D.

2000 Yuzuru SATO Ph.D. Associate Professor, RIES Complex Systems Research Group / Department of Mathematics, Hokkaido University

1999 Shin I. NISHIMURA Ph.D. Department of Mathematical and Life Sciences, Graduate School of Science, Hiroshima University

1997 Eken S. YOSHIKAWA Ph.D.

1995 Takashi HASHIMOTO Ph.D. Professor, Japan Advanced Institute of Science and Technology

Almuni Master's Degree

Year Name Current Affiliation

2023 Kenta Fusegi

2023 Hiroshi Sakuma

2022 Ryozo Hirota

2020 Yuzuru Mitsui

2020 Kohei Homma

2019 Yuma Kajihara

2018 Tomoya Tazumi

2017 Masanori Miyake

2017 Kanjin Yoneda

2015 Itsuki Doi

2015 Atsushi Masumori

2012 Norihiro Maruyama

2012 Sayaka ISHIHARA Graduate School of Arts and Sciences, Department of Life Science, Hasegawa and Saito Lab, The University of Tokyo

2010 Kaisen TAKAYUKI

Satoshi KOBAYASHI

2008 椎名 真

2007 Toshiyuki HORIE

田中 成幸

2006 Masaki GOTO

2005 Masumi NASUKAWA

渡士 誠教

2003 Tomoha IWATA

2002 Kenshi SHOJAKU

Takashi NAGASHIMA

Kouji KISHI

Daisuke KOMATSU

Masanori MATSUSHIMA

Shuhei SHIGEHISA

Noriaki TAKEMOTO

Hidenori AWAYA

Asako MATSUMOTO

Kouji HARADA

Junichi TANAKA

Taiga ABE

Junko TANIGUCHI

Yusuke KANAYAMA

Join the Lab

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