云计算下用户行为特征的服务选择策略

Services selection strategy based on user behavior in cloud computing

在云模型中,不同的网络资源被网络虚拟化抽象成为各种服务,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。为保证用户能高效地选取服务,从用户体验质量的角度,分析云环境下用户访问服务的行为,利用其访问服务的偏好性,提出基于用户行为特征的服务选择策略。理论分析和实验表明,该策略能保证较高的性能及用户满意度,能为用户提供有效的选择方案。

In the cloud model, different network resources are abstracted into various services by network virtualization. Af- ter further combination, these services are provided to end users through service composition. To ensure that users can se- lect services efficiently, this paper, with a view to Quality of Experience, analyses user behaviors of access to services in the cloud environment, exploits user preferences of access to service and then presents a service selection strategy based on user behavior. The theoretical analysis and experimental results show that the strategy can ensure higher performance and user satisfaction, and provide users with effective options.