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基于模糊Petri網和本體的網格服務發現

Grid service discovery based on fuzzy Petri net and ontology

  • 摘要: 給出了一個多Agent松散耦合的網格服務發現框架.在該框架中把Agent分為三類:服務Agent、需求Agent和服務發現Agent.提出以模糊Petri網作為服務描述語言的規范,用以發布或請求服務,用可能性變遷表示一個服務或一個需求,輸入庫所代表在提供(或請求)服務前需要成立的前提條件,輸出庫所表示提供(或獲得)服務后成立的條件,用可能性與必然性來量化一個服務Agent能對一個請求提供相關服務的信心程度.最后基于本體論給出了一個支持部分匹配的服務匹配算法,并用一個車輛維修服務系統的例子進行了說明.

     

    Abstract: A multi-agent-based grid service discovery framework was put forward, in which agents were distinguished into three categories:service-agent, request-agent and service-discovery-agent. A service description language based on fuzzy Petri nets (FPN-SDL) was proposed as a specification to publish or request for a service, it used possibility transition to represent a service or request, input places and output places to denote conditions before and after performing the service respectively, and possibility and necessity to quantify the confidence levels that the service could satisfy a request. At last this paper presented a semantic-based service matchmaking that can find an appropriate service for a request and support partial matching, and illuminated these through an example of the vehicle maintenance service system.

     

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