基于模糊集的面向服务计算QoS扩展模型  

Extended QoS Model Based on Fuzzy Set in Service-oriented Computing

作　　者：刘冬梅[1] 邵志清[1] 

机构地区：[1]华东理工大学计算机科学与工程系,上海200237

出　　处：《计算机科学》2008年第12期129-132,共4页Computer Science

基　　金：国家自然科学基金(No.60373075;No.60773094;No.60473055);上海市科技发展基金(06dz15004-1)

摘　　要：面向服务的研究是当今网络应用研究的热点,服务的QoS计算又是其中的重要部分。已有文献建立过一些服务质量评价模型,用于服务QoS的计算,但是将用户对服务的期望和上下文一起加以考虑的却极少。对具有相似期望的用户进行选择,只允许具有相似期望的评价影响对服务的总评价,并应用模糊数学思想,根据属性的权重和用户的权重,提出一种QoS的模糊计算模型,从而得到更加精确而有意义的QoS度量。Service-oriented computing （SOC） is currently a hot research area in internet application, and the ability to gauge quality of service is critical in SOC. Different evaluating models for calculating QoS of service have been proposed, but it is very few to consider the context alongside the expectations of user using service. We selected ratings which have similar expectations,and only the ratings with similar expectations influence the aggregate rating for service. Proposed an extended fuzzy calculating QoS model based on attributes weight and user weight which adapt the idea in fuzzy mathematics. The model can drive a more accurate and meaningful measurement for quality of service.

关 键 词：QoS建模 QOS度量 SOC 模糊集 

分 类 号：TP311.52[自动化与计算机技术—计算机软件与理论] TP393[自动化与计算机技术—计算机科学与技术]