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Trust evaluation model based on grey predication in grid

ZHANG Xu,GAO Cheng-shi,DAI Qing,YAO Hui Institute of Electronic Technology,Information Engineering University,Zhengzhou 450004,China  
A kind of trust evaluation model based on grey predication is proposed.Using the correlative methods of grey predication and according to the variety character of the entity's historic trust information,this paper puts forward GM(1,1) predication model and employs it to forecast the trust value during entities'interaction in the next time.Integrated with the predication value,an update mechanism of entities'trust value which is in the end of the interaction is presented.The examples indicate that the model,which is good at calculating and predicts accurately,is a preferable way to solve trust evaluation problem in grid.
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