关键词: 关键词: 云计算, 区间犹豫模糊, 标准化, 距离测度, 灰色妥协关联度

Abstract: Abstract:Abstract: In order to solve the dynamic evaluation problem of cloud computing security ,a method named Interval -Valued Hesitant Fuzzy Grey Compromise Relation Analysis (IVHF-GCRA) for evaluating the security of cloud computing was proposed. Firstly, a new interval-valued hesitant fuzzy distance formula was defined to measure the distance between two interval-valued hesitant fuzzy sets accurately. Then , two new interval-valued hesitant fuzzy normalization formulas were constructed to solve the different dimensions of attributes. Meanwhile the concept of grey compromise degree was put forward to consider all the experts opinions and solve the situation when the attributes have conflicts, and the grey relation four axioms were verified. On the basis of this, a new Interval-Valued Hesitant Fuzzy Grey Compromise Relation Analysis method is presented, which can be used to evaluate the security of cloud computing. The results show that the proposed method is feasible. The scientific and effective characters of the proposed method were reflected by comparing with the existed literature.

Key words: Keywords: cloud computing, interval-valued hesitant fuzzy, standardized, distance, grey compromise relation