A Feedback-Based Trust Evaluation Mechanism for Grid
Due to the drawbacks of lack of incentive mechanism in existing trust evaluation methods, a feedback based trust evaluation mechanism for grid is proposed. Based on recommendation threshold and positive factor used to control the weights of the direct and indirect trust, an improved trust evaluation method is presented to compute the general trust, with highly dynamic adaptive capacity. Then, through embedding service weight into trust evaluation, an incentive mechanism based on authorization feedback factor is proposed to update direct trust. According to the behaviors of the entities, incentive mechanism is used to increase and reduce the direct trust of the positive entities and malicious ones respectively dynamically and effectively. A series of simulation experiments are designed to test the dynamic adaptability of the trust evaluation mechanism.
grid trial trust evaluation authorization feedback
Houren Xiong Bin Zhang
Zhengzhou Information Science and Technology Institute Henan Key Laboratory of Information Security Zhengzhou 450004, China
国际会议
成都
英文
1836-1840
2010-12-17（万方平台首次上网日期，不代表论文的发表时间）