【摘要】 针对多自治域环境中的域间信任关系动态的、不确定性等特点,提出了一种基于时间的动态信任关系模型。每个自治域都维护有一个描述该域和其他域之间的信任度的信任向量。在本模型中,两个域间的信任关系取决于时间和域间的互操作记录。基于蚁群算法给出了根据多自治域的当前环境来实时地计算域间信任关系的基本方法,当局部的信任度发生改变时,可以根据蚁群算法及时调整全局信任关系。最后,通过仿真实验验证了域间信任关系的建立及变化过程。更多还原

【Abstract】 This paper introduced a model for time-based temporal trust.The trust in multi-domain environment is uncertain,which is variation for various factors.Every domain is endowed with a trust-vector,which figures the trust intensity between this domain and the others.The trust intensity is dynamic due to the time and the inter-operation between two domains,a method was proposed to quantify this change based on the mind of ant colony algorithm and then an algorithm for the transfer of trust relation was also proposed.Furthermore,this paper analysed the influence to the trust intensity among all entities that is aroused by the change of trust intensity between the two entities,and presented an algorithm to resolve the problem.Finally,we show the process of the trusts’ change that is aroused by the time’s lapse and the inter-operation through the Simulation Experiment.更多还原