CAJ | 학술논문

客观地评价资源是信任模型有效的基础,而评价的主观性则使其难以实现,审计成为维护评价客观性的重要方法.针对信任评价,提出了一个带有审计功能的评价模型,通过采集调度数据、标准化、距离计算、异常评价发现和评价修正等步骤,实现评价的审计和对评价的控制.讨论了审计周期,给出了审计算法.实验表明,所提出的方法对用户信任评价的审计是有效的,发现了评价中存在的问题并在后来的评价中加以修正,同时促进了系统的稳定性和吞吐量.
객관지평개자원시신임모형유효적기출,이평개적주관성칙사기난이실현,심계성위유호평개객관성적중요방법.침대신임평개,제출료일개대유심계공능적평개모형,통과채집조도수거、표준화、거리계산、이상평개발현화평개수정등보취,실현평개적심계화대평개적공제.토론료심계주기,급출료심계산법.실험표명,소제출적방법대용호신임평개적심계시유효적,발현료평개중존재적문제병재후래적평개중가이수정,동시촉진료계통적은정성화탄토량.
Objective evaluation of trust value is the basis of trust model validity,but the subjectivity of evaluation makes it hard to achieve. Audit is one of the effective ways to this problem. In this paper,the authors presented an approach of trust evaluating model with audit function,by the support of basis running data. The process included standardization,distance calculating,and abnormity evaluation detecting and correcting,thus implementing the control of evaluation. As to the model requirement,the authors analyzed the refresh periods of audit,and an audit algorithm was put forward. Finally simulations were performed to validate the audit. The experimental results show that the audit is efficient on trust model stability and at the same time is helpful with the throughput of grid.