Member of the Knowledge Board, The Planetary Collegium
Member of the Programme Committee of The VIIIth European Conference on Artificial Life (ECAL 2005)
Organizing Committee and Scientific Committee for the Workshop on "Evolution of Complexity", in conjunction with the ALife X conference, June, 2006, Indiana University
Program Committee for the Workshop on "Machine Self-Replication", in conjunction with the ALife X conference, June, 2006, Indiana University
International Organizing Committee/International Program Committee, International Symposium on Artificial Life and Robotics (AROB 11th '06), Oita, Japan, January 23-25, 2006.
GECCO-2003,2004 (Genetic and Evolutionary Computation Conference) Program Committee Member
ECAL-2003 (European Conference on Artificial life) Program Committee Member
Chairman of the OU Arts and Sciences Support of Teaching and Research Committee, 2003-2004
Member of Board of Directors of the Norman Society of International Affairs, 2002
Co-chairman of the Norman-Seika Friendship Committee of the Norman Society of International Affairs, 2002-2004
Member of faculty search committee, OU Health Sciences Center Department of Immunology and Microbiology
Co-chairman of the Common Computing Needs Sub-committee of the Information Technology Council, 2002-2004
Member of the OU Arts and Sciences Support of Teaching and Research Committee, 2002-2004
Member of the OU Information Technology Council, 1999 to present
Member of Founding Board of the International Society for Artificial Life.
International Organizing Committee, International Symposium on Artificial Life and Robotics, Oita, Japan, January 26-28, 2000.
Member of Silicon Graphics Vanguards of Visual Computing Program, from November 1998.
Scientific Committee member, The 5th European Conference on Artificial Life (ECAL99), EPFL in Lausanne, Switzerland, 13-17 September 1999.
Senior Program Committee member, 1999 Genetic and Evolutionary Computation Conference (GECCO-99). July 1999.
Program Committee, 4th International Conference on Virtual Systems and MultiMedia 1998, The International Society on Virtual Systems and MultiMedia, Softopia, Gifu/Ogaki Japan, November, 18-20, 1998.
Program Committee, First International Conference on Virtual Worlds (ICVW+98), International Institute of Multimedia, Paris, France, July 1-3, 1998.
Program Committee, Computation for Metaphors, Analogy and Agents: An International Workshop, University of Aizu, Aizu-Wakamatsu City, Japan, April 6-10, 1998.
Program Committee, Bio-Computing and Emergent Computation (BCEC97), Skovde, Sweden, 1-2 September 1997.
Program Committee, The 4th European Conference on Artificial Life (ECAL'97), Brighton, UK, 28-31 July 1997.
Program Committee member, Semigroups & Algebraic Engineering Conference, Aizu Japan, March 24-28, 1997.
Member of the International Steering Group of the University of Sussex School of Cognitive and Computing Sciences Evolutionary and Adaptive Systems Program.
Associate Editor, International Journal for Artificial Life and Robotics, 1996 to present.
Invited nominator for 1996 Kyoto Prize.
Program Committee, Artificial Life V Conference, Nara Japan, May 16-18, 1996.
Science Advisory Board, Bionomics Institute, 1994 to present.
International Organizing Committee, International Symposium on Artificial Life and Robotics, Oita, Japan, February 18--20, 1996.
Program Committee for the IEEE Conference on Evolutionary Computation, December 1995, Perth, Australia.
Editorial Board of the journal Artificial Life published by MIT Press, April 1993 to present.
Program Committee for the IEEE Conference on Evolutionary Computation, June 29 - July 1, 1994, Orlando, Florida.
International Programme Committee for ECAL '93 (European Conference on Artificial Life), Brussels, Belgium, May 24--26, 1993.
Research Priorities Committee, Tropical Biology section of the American Botanical Society, 1993.
Program Committee for the 1993 IEEE International Conference on Neural Networks.
Scientific Committee, Istituto Veneto Di Scienze, Lettere Ed Arti, Venice, Italy, 1992 to present.
Reviewer for SuperQuest 1992, a best-paper competition for work done on super-computers by high school students.