1（Guangxi Wireless Broadband Communication and Signal Processing Key Laboratory，Guilin University of Electronic Technology，Guilin 541004，China）
2（Guangxi Key Laboratory of Trusted Software，Guilin University of Electronic Technology，Guilin 541004，China）
3（Guangxi Colleges Key Laboratory of Cloud Computing and Complex Systems，Guilin University of Electronic Technology，Guilin 541004，China）
Abstract：Aiming at the problem of trust evaluation for cloud services，a cloud service trust evaluation method based on interval multiple attribute decision making is proposed.In this method，the cloud service evaluation is hierarchically structured to form a multilevel structure model，which includes target layer，service layer and index layer.In the QoS index layer，the realtime index data of cloud services are monitored and collected and expressed by interval numbers，and a decision matrix is constructed.Based on the different influence degree of indicators between different levels，the index weight system of cloud service layer and target layer is calculated.Finally，combined with the decision matrix and weight system，the comprehensive evaluation of cloud services are calculated and sorted.The experimental results show that the proposed method can objectively and effectively evaluate the cloud service trust，and avoid the common problems such as lag，collusion and malicious evaluation.
2018, Vol. 39 
