摘要
针对云服务信任评估问题,提出一种区间数多属性决策的云服务信任评估方法.该方法先将云服务评估问题层次化,形成一个包括目标层、服务层和指标层的多层次结构模型;对于服务质量指标层,监测云服务运行的实时指标数据并用区间数表示,构建决策矩阵;基于不同层次间指标影响程度的不同,计算云服务层和目标层的指标权重体系;最后,结合决策矩阵和权重体系进行云服务综合评价和优劣排序.实验结果表明,该方法能够客观、有效地对云服务信任做出评估,避免了信任评估中常见的滞后、串谋和恶意评价问题.
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 multi-level structure model,which includes target layer,service layer and index layer. In the QoS index layer,the real-time 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.
作者
武小年
王青芝
张楚芸
叶志博
WU Xiao-nian;WANG Qing-zhi;ZHANG Chu-yun;YE Zhi-bo(Guangxi Wireless Broadband Communication and Signal Processing Key Laboratory, Guilin University of Electronic Technology, Guilin 541004, China;Guangxi Key Laboratory of Trusted Software, Guilin University of Electronic Technology, Guilin 541004, China;Guangxi Colleges Key Laboratory of Cloud Computing and Complex Systems, Guilin University of Electronic Technology, Guilin 541004, China)
出处
《小型微型计算机系统》
CSCD
北大核心
2018年第7期1492-1497,共6页
Journal of Chinese Computer Systems
基金
国家自然科学基金项目(61572148)资助
广西可信软件重点实验室基金项目(kx201622)资助
广西无线宽带通信与信号处理重点实验室主任基金项目(GXKL061510
GXKL0614110)资助
广西高校云计算与复杂系统重点实验室项目(YF16205)资助
研究生教育创新计划项目(2017YJCX26)资助
关键词
云服务
信任评估
多属性决策
区间数
服务质量
cloud services
trust evaluation
multiple attribute decision making
interval number
service of quality
