Cellular Automata : 6th International Conference on Cellular Automata for Research and Industry ACRI 2004 Amsterdam The Netherlands October 25 28 2004. Proceedings This book constitutes the refereed proceedings of the 6th International Conference on Cellular Automata for Research and Industry ACRI 2004 held in Amsterdam The Netherlands in October 2004. The 60 revised full papers and 30 poster papers presented were carefully reviewed and selected from 150 submissions. The papers are devoted to methods and theory; evolved cellular automata; traffic networks and communication; applications in science and engineering; biomedical applications natural phenomena and ecology; and social and economical applications