Abstract: To solve the problem of service selection in cloud manufacturing environment,a cloud service selection model based on Quality of Service (QoS) aware was presented.The QoS information aware and quantify mechanism were established.For the problem of dishonest evaluation,an information correction method was proposed.According to the theory of variable precision rough set,the weight of QoS evaluating-indicator was calculated.Combining with the weight set by user,the comprehensive performance sequence of service quality was acquired by using manufacturing cloud service selection algorithm.The experiment results showed that the model could accurately select the most suitable cloud service.

Key words: cloud manufacturing, quality of service, variable precision rough set, service selection

摘要： 为解决云制造环境下的服务选择问题,提出一种基于服务质量感知的云服务选择模型,建立了QoS信息感知和量化机制,针对不诚实评价问题提出信息校正方法,根据变精度粗糙集理论计算服务质量评价指标的权重,与用户设定的权重相结合,利用制造云服务选择算法取得服务质量综合性能排序。实验结果表明,该模型能够准确地为用户选择最佳服务。

关键词: 云制造, 服务质量, 变精度粗糙集, 服务选择