基于信任路径搜索的分布式虚拟化环境下可信服务组件选择方法——HA_OTPS

发布时间：2018-05-13 20:21

本文选题：分布式虚拟化环境 + 可信性保障　；参考：《电子学报》2017年01期

【摘要】：可信服务组件选择是实现分布式虚拟化环境下服务可信性保障的关键.将服务组件选择抽象为多限制优化路径问题后,可以通过搜索信任路径来选择服务组合所需组件,但现有的信任路径搜索算法计算复杂度过高、性能表现差,同时在建立可信服务组件选择模型时缺少从服务组件信任关系和证据传播的角度出发,对可信服务构建与组合过程中服务组件社会关系方面考虑.针对以上不足,本文提出可信质量Qo D概念,引入组件亲和度等属性来对分布式虚拟化环境可信服务组件选择模型加以描述与限制,并设计一种基于Qo D的启发式优化信任服务路径搜索算法HA-OTPS,选择优化信任服务路径上的服务组件来满足用户可信性需求.实验结果表明,与现有的信任路径搜索算法相比,HA-OTPS算法具有运行时间较短、搜索结果效用值较高等优势.
[Abstract]:Trusted service component selection is the key to guarantee service credibility in distributed virtualization environment. After abstracting the service component selection to the multi-constrained optimization path problem, we can search the trust path to select the components needed for the service composition. However, the existing trust path search algorithms have high computational complexity and poor performance. At the same time, in the establishment of trusted service component selection model, the relationship between service components in the process of constructing and composing trusted services is considered from the point of view of the trust relationship of service components and the propagation of evidence. In view of the above shortcomings, this paper proposes the concept of trusted quality QoS, and introduces some attributes such as component affinity to describe and restrict the trusted service component selection model in distributed virtualization environment. A heuristic optimized trust service path search algorithm HA-OTPS-based on QOD is designed, and the service components on the trust service path are selected to meet the needs of user credibility. The experimental results show that compared with the existing trust path search algorithm, the HA-OTPS algorithm has the advantages of shorter running time and higher utility value of the search results.
【作者单位】：哈尔滨工程大学计算机科学与技术学院;
【基金】：国家自然科学基金(No.61370212,No.61402127,No.61502118) 黑龙江省自然科学基金(No.F2015029) 博士点基金优先发展领域项目(No.20122304130002) 中央高校基本科研业务费专项资金(No.HEUCF100601)
【分类号】：TP391.9

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