中文摘要：

利用Agent自治协作的特点,研究了一种基于Agent的云计算环境下的信任信息收集机制.其中研究的信任计算所涉及的因素分为直接信息、推荐与信誉3个方面,为了综合解决集中式信息存取模型导致的存储压力问题与分布式模式导致的管理复杂度问题,该机制利用集中分布式的方式收集与存储信任信息.引入信誉管理Agent来集中管理云服务等资源的信誉以及用户的朋友关系等信息,同时将云计算中的资源分布式划分为不同的资源社区,引入资源社区信任管理Agent分布式管理交互信息等.提出了基于Agent的信任信息收集整体框架与工作流程,以及信息收集模块的设计与信任信息预处理的相关方法,最后进行了模拟仿真试验,试验结果显示了信任预处理机制的有效性.

英文摘要：

On account of the autonomy and interoperability characters of Agent,the paper proposes an Agent-based trust information collecting mechanism in cloud computing environments.Factors involved in trust calculation are divided into three aspects： direct interactions,recommendations and reputation.In order to comprehensively solve the storage pressure leading by centralized access and management complexity leading by distributed access,the mechanism adopts centralized-distributed collection and storage.With the usage of reputation management Agent to centralize the reputation of resources such as cloud services,meanwhile,the resources are distributed divided into different resource communities and resource community management Agent is introduced to manage the information such as interactions between users and resources.Then we introduce the gross structure and workflow of the mechanism;and the detailed design of trust information collecting module is stated.Finally,the paper expounds the means to preprocess trust information and proves its effectiveness with experiment.