Title	Policy-Based Ambiguity Reduction in Pervasive Context-Aware Systems
Author	Sherif G. Aly
Citation	Vol. 7  No. 2  pp. 78-88
Keywords	Pervasive Systems, Context Awareness, Ambiguity Reduction, Policies.

Title	Web Services Enabled Text Categorization System: Service Infrastructure Designing
Author	Xiaobin Zhang, Jian Mei, Suge Wang, Wu Zhang
Citation	Vol. 7  No. 2  pp. 73-77
Keywords

Title	An Artificial Immune Approach for Vehicle Detection from High Resolution Space Imagery
Author	Hong Zheng, Li Li
Citation	Vol. 7  No. 2  pp. 67-72
Keywords	Vehicle detection, space imagery, antibody learning, immune network

Title	Ecosystem Model Based Grid Resource Optimization Management
Author	Yunlan Wang, Tao Wang, Lei Tang, Dong Zhong
Citation	Vol. 7  No. 2  pp. 61-66
Keywords	Grid Computing, Computing Ecosystem, Resource allocation, Job scheduling, Knowledge Discovery