2Nd International Conference on Ubiquitous Information Management and Communication, Icuimc-2008, Date: 31 January 2008 through 1 February 2008, Location: Suwon, Patrocinadores: Spec. Interest Group Knowl. Discov. Data Min. (ACM SIGKDD);Sungkyunkwan Univ. (SKKU), Educ. Cent. Mob. Commun. (ECMC);Ajou Univ., BK21 Team Commun. Syst. Cross-Layer;Optim. Des. Technol.;Seoul National University, Center for e-Business Technology