Chengqi Zhang Hans W. Guesgen Wai-Kiang Yeap PRICAI 2004: Trends in Artificial Intelligence, 8th Pacific Rim International Conference on Artificial Intelligence, Auckland, New Zealand, August 9-13, 2004, Proceedings PRICAI Lecture Notes in Computer Science 3157 Springer 2004 3-540-22817-9 db/conf/pricai/pricai2004.html