Title	Priority-based hierarchical Application Layer Multicast Management Model
Author	Xu Jian-zhen, Xu Mi-hua, Zhang Fu-yan
Citation	Vol. 7  No. 4  pp. 242-249
Keywords	Application-Layer Multicast; Priority; Hierarchical Structure; Multicast Management; Efficiency

Title	GIDRE: Environment of Detection and Answer of Intrusions based on GRID
Author	Olimpia Olgu?n, Manel M?dina
Citation	Vol. 7  No. 4  pp. 232-241
Keywords	GRID, attacks, Firewalls, IDS, ADS.

Title	Model of Flexible Production Systems with Sub-Lines and Their GA Expressions
Author	Jaber Abu Qudeiri, Hidehiko Yamamoto, Rizauddin Bin Ramli
Citation	Vol. 7  No. 4  pp. 223-231
Keywords	Flexible production system, Buffer size, Genetic algorithm.

Title	Reducing Premature Convergence Problem through Numbers Structuring in Genetic Algorithm
Author	Abu Bakar Md Sultan, Ramlan Mahmud, Muhammad Nasir Sulaiman
Citation	Vol. 7  No. 4  pp. 215-217
Keywords	Genetic Algorithm, Premature Convergence, Diversity, Timetabling, Optimization