云环境下基于双滑动窗口的供应商信任评估机制研究

Research on Trust Evaluation of Supplier Based on Double Sliding Windows in Cloud Computering

提出了一种基于企业行为证据的双滑动窗口的供应商信任量化评估机制,通过不断滑动的窗口,确定窗口更新和替换的内容以保证企业行为信任评估的可信性和可扩展性.仿真实验分析表明,该模型提供了云环境下供应商信任值计算的动态性,评估方法能够有效应用于云环境下供应商的评价中,评价结果客观有效.

Supply-chain enterprises plays an important role in their cooperation in cloud computing ,and it is the pillar of supply chain to ensure its regular operation .For the problems of without considering the importance of enterprises'recent behaviour and the time attenuation of their future behaviour ,as well as without timely response for their spiteful actions in existing trust evaluation methods ,an reliance quantifying and evaluation mechanism for suppliers using double sliding windows (DSW ) on the basis of enterprises'behaviour is proposed . Targeting on improving the trust crisis between supply-chain enterprises ,this newly-proposed mechanism take the impact of time on trust into consideration based on the time decay function .The content of window update and displacement is determined by the continuously sliding window to ensure the reliability and scalability of trust evaluation for enterprises'behaviou .The simulation experiment and analysis demonstrates that a dynamical computing of suppliers'confidence in cloud computing is provided by this model ,the evaluation method could be applied in the evaluation of suppliers in cloud computing efficiently and an objective and effective result can be achieved .