Failure Prediction Based EX_QoS Driven Adaptive Approach for Distributed Service Composition

摘要：

As web services may dynamically change,composite service should repair itself if any execution problems occur,in order to successfully complete its execution.This paper proposes an adaptive approach for distributed service composition.Compared with works have been done,this paper emphasizes on finding the replacement composite service with global optimization in decentralized service composition and thus an EX_QoS model is proposed.Besides this,through failure prediction,the re-selection process will be started earlier before the invocation of failed service.This will make the re-selection process minimize the interrupting time (caused by online re-selection) of the composite service execution and improve the availability of the composite service.The experimentations show better performance of our algorithm.

关键词： EX_QoS Service Composite Service Distributed Service Composition Failure Prediction

作者: Yu Dai Lei Yang Bin Zhang Kening Gao

作者单位: School of Information Science and Technology,Northeastern University,Shenyang,Liaoning 110004,P.R.China

会议类型: 国际会议

会议名称: 2008年国际电子商务、工程及科学领域的分布式计算和应用学术研讨会(2008 International Symposium on Distributed Computing and Applications for Business Engineering and Science)

会议地点: 大连

会议语种:英文

页码: 940-949

在线出版日期: 2008-07-27（万方平台首次上网日期，不代表论文的发表时间）