基于分布式的语义Web服务发现新模型

A New Semantic Web Service Discovery Model Based on P2P Network

为了快速、准确和高效地发现目标服务,提出了一种基于分布式和语义描述的Web服务发现新模型。该模型将领域分类的思想与P2P网络相结合,构造出一种基于P2P的双层拓扑结构,并采用一种层次化的注册管理机制,从而提高了服务发现效率。同时通过使用两阶段搜索算法及二层服务匹配算法对服务进行层层递进查找,使该模型在保证查准率的基础上大大提高了服务发现的查找速度。最后,通过原型系统证明了该模型是合理的和高效的。

In order to find the aimed Web Service precisely and efficiently, presents a new service discovery model based on P2P network and semantic description. The improved model combines the idea of field classification with P2P networks, and implements a P2P double - layered topology structure which contains hierarchy registration mechanism, thereby improves the efficiency of the .service discovery. It also uses two phase search algorithm and the two - layer service matching algorithm to recursively discover the service which greatly enhances the speed of service discovering on the basis of ensuring precision ratio. At last a prototype system proves that the model has a better performance.