Two-level-feedback Based Trust Model for Grid Resource Scheduling

The feedback of common trust model is provided by grid resource consumer,as it is one-level feedback,untruthful grid resource consumers would provide untruthful feedbacks to maximize their payoffs.To overcome this drawback,a new two-level-feedback based trust model is raised.This module compares the feedback from an independent neutral deputy with the one from grid resource consumer,filters the untruthful feedback and punish the untruthful grid resource consumers,so as to increase the fairness of the grid and the output of the resources.We use GridSim as simulation software to demonstrate the effectuation of our model.