- Keynote address: 2002 South African Institute for Computer Science
and IT Conference, Port Elizabeth, South Africa.
- Invited tutorial: 2000 IEEE International Conference on Multimedia
Software Engineering, Taipei, Taiwan.
- School of Computing Science, Simon Fraser University, Vancouver,
Canada.
- Knowledge Systems Group, School of Computer Science and Engineering,
University of New South Wales, Sydney, Australia.
- Dept. of Computer Science, National Taiwan University, Taipei,
Taiwan, Republic of China.
- Information Systems Group, School of Management, University of
Newcastle, Australia.
- AI-Economics Group, Dept. of Economics, National Chengchi
University, Taipei, Taiwan, Republic of China.
- Dept. of Computer Science, University of Western Sydney, Nepean,
NSW, Australia.
- School of Computing and Information Technology, Griffith University,
Brisbane, Australia.
- Dept. of Computer Science, National Chiao-Tung University, Hsinchu,
Taiwan, Republic of China.
- Fujitsu Labs, Kawasaki, Japan.
- Dept. of Computer Science, University of South Africa, Pretoria,
South Africa.