Research On Evaluation And Selection Of Trusted Cloud Services Based On QoE

As a kind of new network services relying on cloud computing platform,cloud services have been widely applied in many areas.A large number of cloud services with the same functional attributes and different functionalities are often difficult for users to choose from.However,security risks under the outsourcing service mode and fraudulent activity under "pay-as-you-go" mode also raise trust issues on cloud services.This paper proposes a security service valuation model of the controllable cloud computing platform based on the third party supervise and two-way trust.In order to provide both credible and available cloud services for the users,this paper also introduces comprehensive estimation in which the users' experience preference depends on analytic hierarchy process and fuzzy mathematics,and ensures the security of the whole cloud computing platform.Considering the current cloud services chaos,this paper proposes a service evaluation and selection method based on QoE because of the current situation.This model can recommend the trusted cloud services which the users want to have urgently according to the AHP of QoE and the fuzzy mathematical comprehensive evaluation.Experiments show that the model can effectively improve the transaction success rate and the users' satisfaction.It also can protect users from the fraud of the malicious entities.Experiment shows that the model can not only effectively improve the transaction success rate and the overall level of user satisfaction,but also resist some fraudulent activities caused by malicious entities to some extent.