Intelligence and Security Informatics Pacific Asia Workshop, PAISI 2007, Chengdu, China, April 11-12, 2007. Proceedings - Yang, Christopher C.; Zeng, Daniel; Chau, Michael; Chang, Kuiyu; Yang, Qing; Cheng, Xueqi; Wang, Jue; Wang, Fei-Yue; Chen, Hsinchun (Springer Berlin Heidelberg, 2007)