关键词: 网格, 服务发现, 移动代理, 蚁群算法

Abstract: A grid resource discovery model which combines ACO and mobile agent is presented based on grid cluster theory. The mobile agent technology is employed to collect information of grid resources and store the abstracts of grid service information in clusters’ cache. The cached service information abstracts are used as the heuristic factor of ACO, so that the accuracy of the pheromone can be improved in ACO. The improvement of the accuracy and the speed of the grid service discovery can increase the efficiency of the grid. Simulations have run and the result of the simulations indicate that the designed service discovery mechanism is available and efficient.

Key words: grid, service discovery, mobile agent, Ant Colony Algorithm（ACO）