• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

计算机工程与科学

• 高性能计算 • 上一篇    下一篇

基于凸函数证据理论的关联感知云服务信任模型

刘玮1,邹璐琨2,霸元婕2,李广力3,4,张志刚1   

  1. (1.长春大学旅游学院工学院,吉林 长春 130607;2.吉林大学计算机科学与技术学院,吉林 长春 130012;
    3.中国科学院计算技术研究所,北京 100190;4.中国科学院大学计算机与控制学院,北京 100049)
  • 收稿日期:2018-08-15 修回日期:2018-10-05 出版日期:2019-01-25 发布日期:2019-01-25
  • 基金资助:

    吉林省教育厅“十二五”科学技术研究项目(吉教科文合字【2015】582);吉林省教育厅“十三五”科学技术研究项目(吉教科文合字【2016】534);吉林省教育厅2017年度职业教育与成人教育教学改革研究课题(2017ZCY285)

A relevance-aware cloud service trust model
based on convex evidence theory

LIU Wei1,ZOU Lukun2,BA Yuanjie2,LI Guangli3,4,ZHANG Zhigang1   

  1. (1.Institute of Technology,The Tourism College of Changchun University,Changchun 130607;
    2.College of Computer Science and Technology,Jilin University,Changchun 130012;
    3.Institute of Computing Technology,Chinese Academy of Sciences,Beijing 100190;
    4.School of Computer and Control Engineering,University of Chinese Academy of Sciences,Beijing 100049,China)
  • Received:2018-08-15 Revised:2018-10-05 Online:2019-01-25 Published:2019-01-25

摘要:

针对大规模分布式云计算系统中的服务可信度辨别问题,提出一种基于凸函数证据理论的关联感知云服务信任模型。对云计算系统中云服务提供商、服务和用户之间的信任关系进行形式化描述,充分挖掘了同一服务商中的不同云服务之间的关联性,利用凸函数证据理论对有序命题的处理能力,构建了云计算系统中的可信服务推荐方法,根据用户需求为其提供合理可靠的云服务。与经典证据理论方法的对比结果表明,基于凸函数证据理论的关联感知云服务信任模型在保证有效性和健壮性的同时,充分利用了云计算系统中云服务之间的关联信息,能够根据用户的请求提供合理的云服务。
 

关键词: 云服务, 服务推荐, 证据理论, 信任融合

Abstract:

Aiming at distinguishing service credibility in the largescale distributed cloud computing system, we propose a relevanceaware cloud service trust model based on convex evidence theory. The model formally describes the trust relationship among service providers, services and users in the cloud computing system. Then, the correlation between different services from the same service provider is revealed. Furthermore, the model uses the convex evidence theory to deal with ordered propositions and finally builds a credible service recommendation method for the cloud computing system, which can provide reasonable and reliable cloud services for users according to user needs. Through the comparison with the classical evidence theory, the experimental results demonstrate the validity and robustness of the relevanceaware cloud service trust model based on convex evidence theory while can make full use of correlation information among cloud services in the cloud computing system and provide reasonable cloud services according to user requests.
 

Key words: cloud service, service recommendation, evidence theory, trust fusion