基于BDI Agent的网格服务模型研究

Grid Services Model Based on BDI Agent

随着网格技术应用的不断深入,对网格服务应用过程中的自治性、智能性等提出了较高要求。为了有效解决网格服务过程中的自治性问题,在对网格服务及智能Agent的BD I模型进行研究的基础上,提出了一种基于BD IAgent的网格服务模型。分析了模型中各模块的组成及功能,基于Agent的智能性、自治性和社会性等特点,讨论了Agent在网格服务请求处理过程中的作用。同时,利用本体语义进行网格服务的匹配,从网格服务的基本概念和整体服务能力上对匹配过程进行了说明。该模型提高了网格服务发现的准确率,同时也增强了系统的可维护性、灵活性和扩展性以及网格服务管理的自治性和容错性。最后,进一步明确了该模型的未来研究方向。

With the developing of the Grid technology, the application of Grid technology becomes more and more important. It proposes the advanced request of autonomy and intelligence in Grid service. To resolve the problem in the processing of Grid service efficiently, on the basis of studying the Belief-Desire-lntention （BDI） model of intelligent Agent and Grid service, it presents a Grid Service Model based on BDI Agent to resolve autonomy and intelligence in the processing of Grid service and analyzes the model＇s architecture and functionality. Based on the characteristics of Agent in intelligence, autonomy and society, it also displays the role of BDI Agent in the processing of dealing with Grid service request. In the matching of Grid services, it uses the ontology technology, and realizes the semantic matching. It deals with the service matching algorithms in detail. The reports of the process of Grid service matching can implement from basic concepts and total service ability. In the basic concepts, it introduces five matching degree, and has achieved the semantic matching of concepts. The matching of total service ability considers the categories, input/output information of Grid service synthetically. This model increases the accuracy of Grid service discovery, improves the system modelg maintainability, feasibility and extensibility and enhances the autonomy and fault tolerance. At last, it points out the farther directions and views the model＇s future scenario.