- Program Committee member: The 21st Australian Joint Conference of Artificial Intelligence 2008 (AI 2008), 1-5 December, Auckland, New Zealand.
- Program Committee member: The 2008 Winter Workshop on Economics with Heterogeneous Interacting Agents (WEHIA/ESHIA), December 5-7, Taiwan.
- Program Committee member: The 2008 World Congress on Computational Intelligence (WCCI), Hong Kong.
- Program Committee member: The 2008 Genetic and Evolutionary Computation Conference (GECCO), USA.
- Program Committee member: The 2008 Simulation of Adaptive Behavior (SAB), Osaka, Japan, on 7-12 July, 2008.
- Program Committee member: The 12th European Conference on Genetic Programming (EuroGP2008), 2008.
- Program Committee member: The 2007 IEEE Symposium on Computational Intelligence in Multi-Criteria Decision-Making (MCDM 2007), April 1-5, Hawaii.
- Program Committee member: The 2007 IEEE Computational Intelligence for Security and Defense Applications (CISDA 2007) , April 1-5, Hawaii.
- Program Committee member: Evolutionary Multi-Criterion Optimization 2007 (EMO 2007), Matsushima, Japan, March 5-8, 2007.
- Program Committee member: The 2nd International Symposium on Intelligence Computation and Applications (ISICA 2007), China University of Geosciences, Wuhan, China, April 6 to 8, 2007.
- Program Committee member: The 2007 IEEE International Symposium on Data Mining and Information Retrieval (IEEE DMIR-07), Ontario, Canada, May 21-23 2007.
- Program Committee member: 10th European Conference on Genetic Programming (EuroGP2006), Spain, 2006.
- Program Committee member: The 30th Australasian Computer Science Conference (ACSC2006), Australia, 2007.
- Program Committee member: The 2006 Computational Intelligence in Security,
- Program Committee member: Australasian Data Mining Conference (AusDM06), Sydney, December, 2006.
- Program Committee member: The 19th Australian Joint Conference of Artificial Intelligence 2006 (AI 2006), Hobart, Tasmania, Australia.
- Program Committee member: Second International Conference on Pattern Recognition and Machine Intelligence (PReMI) at the Indian Statistical Institute, Kolkata, India, during December 18-22, 2007.
- Program Committee member: The 29th Australasian Computer Science Conference (ACSC2006), Australia, 2006.
- Publicity Chair and Program committee member: “The Australian National Joint Conference on Artificial Intelligence (AI’05)”, Perth, Australia, 2005.
- Program Committee member: The European Conference on Artificial Life (ECAL 05), Kent, UK, 2005.
- Program Committee member: The Congress on Evolutionary Computation (CEC 2005) 2005
- Program Committee member: Genetic and Evolutionary Computation Conference (GECCO2005), Washington, D.C. USA (GA Track), 2005.
- Program Committee member: 8th European Conference on Genetic Programming (EuroGP2005), University of Lausanne, Switzerland, 2005.
- Program Committee member: The third International Conference on Evolutionary Multi-Criterion Optimization (EMO 2005), Guanajuato, Mexico, 2005.
- Program Committee member: The 28th Australasian Computer Science Conference (ACSC2005), Newcastle, Australia, 2005.
- Program Committee member: The 8th International Conference on Parallel Problem Solving from Nature (PPSN VIII), 2004.
- Program Committee member: The Ninth International Conference on the Simulation and Synthesis of Living Systems (ALIFE9) 2004
- Program Committee member: The Genetic and Evolutionary Computation Conference (GECCO-2004) [Artificial Life track] 2004
- Program Committee member: The Congress on Evolutionary Computation 2004
- Program Committee member: The IEEE Conference on Cybernetics and Intelligent Systems (CIS'04), 2004.
- Program committee member: “The Australian National Joint Conference on Artificial Intelligence (AI’04)”, Perth, Australia, 2004.
- Program committee member: The fifth Asia-Pacific Industrial Engineering and Management Systems Conference and the Seventh Asia-Pacific Division Meeting of the International Foundation of Production Research, Gold Coast, Australia, 2004.
- Program committee member: Seventh International Conference on Knowledge-Based Intelligent Information and Engineering Systems (KES2004), New Zealand, 2004.
- Program committee member: The 27th Australasian Computer Science Conference (ACSC2004), Australian Computer Science Week, 2004.
- Program committee member: “The Australian National Joint Conference on Artificial Intelligence (AI’03)”, Perth, Australia, 2003.
- Program committee member: “The Genetic and Evolutionary Computation Conference (GECCO)”, Chicago, USA, 2003.
- Program committee member: The Asia-Pacific Symposium on Intelligent and Evolutionary Systems, Technology and Applications, Kitakyushu, Japan, 2003.
- Program committee member: “The Information Resources Management Association (IRMA) International Conference”, Philadelphia, PA, USA, 2003.
- Workshop and tutorial chair, and program committee member: “The International Conference on Artificial Life (Alife8)”, Sydney, Australia, 2002.
- Technical committee member: “Congress on Evolutionary Computation”, Honolulu, USA, 2002.
- Workshop chair: “The Inaugural workshop on Artificial Life (AL'01)”, Adelaide, Australia, 2001.
- Technical committee member: “Congress on Evolutionary Computation”, SEOL, Korea, 2001.
- Program chair: “The inaugural Australian workshop on the applications of Artificial Intelligence in Plants and Animal Production (AWAPAP'99)”, The 12th Australian Joint Conference on Artificial Intelligence (AI'99), Australia, 1999.
- Program committee member: “The Australian Workshop on Constraint Programming and Applications”, The 12th Australian Joint Conference on Artificial Intelligence (AI'99), Australia, 1999
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