考虑用户偏好的外协云服务优选策略研究

Research on optimization strategy of outsourcing cloud services considering user preferences

为解决现有服务优选研究中不能很好地满足用户偏好这一问题,提出一种考虑用户偏好的云制造服务可靠度模型,并构建基于此模型的外协云服务优选新策略。首先对外协云服务可靠度评价指标体系进行了系统的阐述,给出可靠度模型所涉及的具体指标及其含义;然后在考虑用户偏好的基础上建立基于三角模糊数的偏好符合度求解模型;最后利用逼近理想值的方法求解候选服务的相对贴近度,加权求出最终的可靠度值为服务优选提供数据支撑。经实例验证表明,该优选策略能准确、高效地为用户优选出符合偏好的高质量外协云服务。

In order to solve the problem that the existing service optimization research cannot satisfactorily satisfy the user’s preferences,proposes a cloud manufacturing service reliability model considering user preferences,and constructs a new outsourcing cloud service optimization strategy based on this model.Firstly,the outsourcing cloud service reliability evaluation index system is systematically expounded,and the specific indicators and their meanings are introduced.Then,a preference conformity solving model based on the triangular fuzzy number is established while considering user preference.Finally,the method of approximating the ideal value is used to solve the relative closeness of the candidate service,and the weightedness is used to obtain the final reliability value.The example shows that the preferred strategy can accurately and efficiently optimize high-quality outsourcing cloud services to users that meet the preferences.