Ontology与Agent在服务选择中的应用研究

Study on Service Selections Based on Ontology and Agent

为了解决服务选择过程中由于缺少语义和有效的协商,使得用户难以获取满意服务这个问题,提出利用Ontol-ogy和Agent来进行服务选择的方法SBOA(Service based ontology and agent),该方法包括本体相似度计算和Agent协商这两个主要过程。在本体相似度协商过程中,研究了一个改进的基于语义的相似度计算方法,在Agent协商策略的设计过程中,把寻找相似度值与服务成本的比值最大作为协商策略,设计了Agent之间基于效用最大的具体的协商算法。SBOA既利用了Ontology的语义表示能力,也利用了Agent具有的自主协商能力,为它们的结合提供了一个途径,也为用户根据语义选择用户满意的服务提供了一个有效的方法。仿真实验表明了SBOA的过程和它的有效性。

Lacking of the semantic and negotiation between user and resource,we can’t find and select the service satisfied,a method SBOA（Service Based Ontology and Agent） to select the service is proposed,which includes the processing of similarity measurement and negotiation,we research and advance a method to measure the similarity of ontology based on semantic units.A negotiation strategy （NBUM） is designed based on maximum of similarity and service cost.By using of semantic ability of ontology and the negotiation of agent,SBOA provide a way to use ontology and agent,and also provide a method to select service user satisfied.Experiments show that our method is efficiency.