基于Petri网的OWL-S语义匹配机制研究  

Research on Petri Net Based OWL-S Semantic Matching Mechanism

作　　者：裘杭萍[1] 胡汭[1] 罗晨[1] 

机构地区：[1]解放军理工大学指挥自动化学院,南京210007

出　　处：《计算机科学》2012年第10期174-176,213,共4页Computer Science

基　　金：国家863基金项目--大规模复杂系统的分析能力技术(2007AA126)资助

摘　　要：传统的UDDI不支持语义推理以及基于服务属性的匹配,因此存在召回率低、匹配效率低等问题。基于此问题提出了一种基于Petri网的OWL-S语义匹配机制,即借助Multi-Agent服务发现框架,使用PNSDL描述语言来发布和请求服务。该匹配机制借助Petri网对服务的描述能力,通过使用可能性和必然性程度代表服务可以胜任需求的置信度,从而实现服务的匹配。该机制具有强大的逻辑推理能力及对多服务的建模能力,能提高匹配的真实度、匹配度等。Traditional UDDI does not have the capability to process semantic and match to the service attribute,as a result,it has the low recall rate and matching rate.Through the service matching framework of Multi-Agent,a Petri net based OWL-S semantic matching mechanism was proposed to deal with the shortcoming,in which PNSDL description language is used to publish and request service.In virtue of the ability of Petri net for describing Web service,the matching mechanism uses the possibility and necessity to quantify the confidence levels that the service could satisfy a request,so as to finish the matching of service.The matching mechanism has the advantage of powerful ability to process,modeling for Multi-service,high reality of matching and high matching rate,etc.

关 键 词：OWL-S语义 语义匹配 服务发现 PETRI网 MULTI-AGENT 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]