Title	A Study on DRM System for On/Off Line Key Authentication
Author	Kun-Won Jang, Chan-Kil Park, Jung-Jae Kim, Moon-Seog Jun
Citation	Vol. 6  No. 2  pp. 233~238
Keywords	DRM, Symmetric key, Agent, PKI.

Title	Decision-making models for resource allocation in multi-population coevolutionary genetic algorithms implemented on networks
Author	Gong Dun-wei, Sun Xiao-yan
Citation	Vol. 6  No. 2  pp. 239~245
Keywords	genetic algorithms, coevolution, multi-population, implemented on networks, resource allocation.

Title	Processing Continuous k-Nearest Neighbor Queries in Location-Dependent Application
Author	Wei Zhang, Jianzhong Li, Haiwei Pan
Citation	Vol. 6  No. 3  pp. 1-9
Keywords	Query Processing, Continuous Query, Location-dependent, Spatio-temporal

Title	A Learning Method based on Hopfield Neural Network and Its application in Point-feature Labeling Placement Problem
Author	Zheng He, Koichi Harada
Citation	Vol. 6  No. 3  pp. 10-16
Keywords	Constraint optimization, Hopfield neural network, Learning method, Point-feature labeling placement