A Distributed Quality of Service Index Framework
To efficiently support customers to find web service which satisfies the non-functional requirement, a distributed quality of service (QoS) index framework is proposed in this paper. The framework consists of two kinds of structured distributed system, one is chord overlay network which is assigned to classify the web services according to the similarity of web services descriptions, the other is a tree-structured distributed network named DQoS tree which manages the classified web services QoS. Since there is a dominance relation among multi-dimension QoS, therefore, a guideline based on this relation to construct a QoS tree managed by a subpeer is designed. Through the dominance relation, its easily find the qualified QoS among web services with less compare times, thus, the query effectiveness is guaranteed. Additionally, to avoid the load imbalance of query load in the DQoS tree, a load balance strategy is introduced which can balance work load efficiently. Experimental results validate the effectiveness and efficiency of the proposed approaches.
Web Service Selection Quality of Service DQoS Tree Load Balance
XiLu Zhu Bai Wang
Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia Beijing University of Posts and Telecommunications Beijing, China
国际会议
2010 IEEE Asia-Pacific Services Computing Conference(2010 IEEE亚太地区服务计算会议 APSCC 2010)
杭州
英文
123-130
2010-12-16（万方平台首次上网日期，不代表论文的发表时间）