【摘要】 由于网格动态异构等特点,传统的基于资源属性的精确匹配方法不够灵活,并且扩展性差。近年来,本体论引入到网格计算中,试图在语义层次上采用通用可扩展的信息系统建模工具,使得网格资源分配系统能够高效和精确地检索网格资源信息。通常采用的技术是建立和维护一个集中和一致的网格资源本体。这种集中的本体不适合具有分布式特性的 P2P 网格资源匹配。针对 P2P 网格,本文提出了一种基于分布式网格本体的 P2P 网格资源匹配模型。在该模型中,全局本体由各个节点的独立的本地网格资源本体构成。网格资源匹配操作完全分布式地由节点自主控制。这种方法可扩展性强,更适合 P2P 网格的资源匹配。更多还原

【Abstract】 Because of the dynamic and heterogeneous characteristic of grid,traditional resource matchmaking which is based on exactly resources attributes matching leads to low flexibility and bad extension.Recent years,the ontology is introduced to the grid computing.Using the information system modeling tool in the semantic level,the grid system highly,effectively and precisely retrieves the grid resources.Usually used method is to establish and maintain consistent and centralized grid resource ontology.However,this kind of centralized ontology is not suitable for the P2P Grid.In view of P2P Grid,this article proposed an ontology-based P2P Grid Resource Matchmaking Model (ORMM).In this model,the global ontology constitutes by the integration of the local ontology located in each P2P node.Grid resources matchmaking is done and controlled completely by the local P2P node without central control mechanism.This model is flexible and extensible,and is suitable for P2P Grid resources matchmaking.更多还原