云计算环境下基于用户偏好的服务选择策略

User Preferences-Based Service Selection Strategy for Cloud Computing

摘要: 云计算环境下，服务是指各种抽象的虚拟化的网络资源，伴随着环境的动态化、服务的多样化和用户需求的个性化，服务选择问题越来越重要。把这些服务经过进一步的组合后，以服务组合的方式提供给终端用户，能保证用户能高效地选取服务。本文从用户体验质量的角度，分析云计算环境下用户访问服务的行为特征，利用其访问服务的偏好性，提出基于用户行为偏好的服务选择策略。理论分析和实验结果表明，该策略能保证较高的性能及用户满意度，并能减少时间开销，为用户提供更有效的服务选择方案。

Abstract: Service of cloud computing refers to all kinds of abstract and virtualized network resources, along with the environmental dynamism, the diversification of the services and personalized user re-quirements. Service selection problem is becoming more and more important. Further combining these services and providing them to end users in the form of service composition can ensure that the users can select service efficiently. The paper analyzes the behavior characteristics of the user to access the service under the cloud computing environment from the perspective of the user ex-perience and puts forward the service selection strategy based on behavior preferences of users by using the access service preferences. Theoretical analysis and experimental results show that the strategy can guarantee high performance and user satisfaction, reduce the time overhead and provide users with more effective service options.