摘要
针对UDDI注册中心存在查询瓶颈以及缺乏对服务的语义描述,提出了基于Chord的分布式注册、查找服务模式,并对OWL-S进行了QoS的扩展以满足客户对于服务语义和服务质量的需求.服务发布者根据Chord协议注册服务,服务需求者根据Chord协议进行服务社区定位后,采用基于服务功能的语义匹配和服务QoS的匹配.通过验证,本算法有较好的查准率以及查询效率,克服了传统集中式UDDI存在服务瓶颈的问题.
To solve the problems of UDDI registry such as query bottleneck and lack of semantic description of services, distributed registration and search pattern based on Chord is put forward in this paper. Qos extension is adopted in OWL - S to meet the customers＇ requirements of both service semantics and service quality. Service publishers register and service under the Chord protocol, while the service requesters locate the service protocol community based on Chord and then realize matching by service functional semantics and service Qos. It is validated that the algorithm enjoys better precision and query efficiency, which solves the bottleneck problem in the traditional centralized UDDI service.
出处
《昆明理工大学学报（自然科学版）》
CAS
北大核心
2011年第4期47-51,共5页
Journal of Kunming University of Science and Technology(Natural Science)
基金
陕西省自然科学基础研究项目(2007D22)
咸阳师范学院专项科研项目(07XSYK214
07XSYK107)
