基于Web服务可信性的用户反馈度量研究

发布时间：2018-07-25 15:12

【摘要】：目前,可信问题成为阻碍Web服务发展的一项重要瓶颈。本文结合国内外专家、学者对于可信的研究,归纳总结可信、可信的Web等相关概念,提出基于用户反馈度量研究Web服务可信性的重要性,构建更具有效化的用户反馈度量模型,并通过仿真实验对本文所构建的基于多影响因子的Web服务可信性的用户反馈度量模型进行验证,主要研究成果为：首先,分析指出基于Web服务可信性的用户反馈度量研究具有重要的现实意义。对现有的相关度量模型进行有效性分析,指出这些模型都不能够激励服务提供者持续保持诚信交易。接着,本文依据动态规划理论,通过数学公式推导对服务评价者的可信度、服务交易时间还有服务交易价值这些因子的有效性进行分析,指出当这些影响因子在满足一定条件时,可以激励服务提供者持续保持诚信交易。随后,本文构建了考虑多因子影响的基于Web服务可信性的用户反馈度量模型,并且在模型中引入惩罚因子,增加对于恶意服务提供者的惩罚力度。最后,通过仿真实验验证本文所提出的度量模型在度量的结果方面更具客观化和有效性。本文的研究有助于降低Web服务交易双方的信息不对称性,提高服务提供者恶意行为的成本,减少Web服务交易的风险性,促使Web服务健康发展。
[Abstract]:At present, the problem of trustworthiness has become an important bottleneck that hinders the development of Web services. In this paper, based on the domestic and foreign experts and scholars, we summarize the related concepts of trusted and trusted Web, propose the importance of researching the credibility of Web services based on user feedback metrics, and construct a more effective user feedback metric model. The user feedback metric model of Web service credibility based on multi-influence factors is verified by simulation experiment. The main research results are as follows: firstly, It is pointed out that the research of user feedback metrics based on Web service credibility is of great practical significance. This paper analyzes the validity of the existing measurement models and points out that these models can not encourage service providers to keep on trading in good faith. Then, according to the dynamic programming theory, this paper analyzes the validity of the reliability, service transaction time and service transaction value of service evaluators by mathematical formula. It is pointed out that when these influencing factors meet certain conditions, service providers can be encouraged to keep good faith transactions. Then this paper constructs a user feedback metric model based on Web service credibility considering the influence of multiple factors and introduces a penalty factor to increase the penalty for malicious service providers. Finally, the simulation results show that the proposed metric model is more objective and effective. The research in this paper is helpful to reduce the asymmetry of information between the two parties of Web service transaction, to increase the cost of malicious behavior of service provider, to reduce the risk of Web service transaction, and to promote the healthy development of Web service.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.09

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