Research On The Dynamic Trust Monitoring And Updating Mechanism Based On Behavior

In order to form effective and safety operation of environment resource sharing and serving inthe open network environment, the research of dynamic trust mechanism becomes more and moreimportant.First of all, the multi-level service selection model based on the user similar group is proposedon the basis of trust before the start of operation, in this article. The comprehensive trust valuecalculation method based on the activity of weights dynamic allocation is mainly discussed, thus,the prediction result about the service node trust value is more close to the real value, in this way,the effective basis for service selection is provided.Afterwards, the research on dynamic trust update mechanism respectively from two differentangles in the process of operation are proposed in this article, On the one hand, the dynamic trustmonitoring mechanism of the user level which is supported by the behavior context changes isgiven by this article, the four factors influence the trust of the user node value is analyzed: Level ofimportance factor, behavioral decision factor and so on, a kind of fine grained trust update methodsupport behavior is designed based on the four kinds of factors, so the purpose of real-timemonitoring and updating about the trust value of the user node is achieved. On the other hand, fromthe perspective of service node, the dynamic monitoring and the updating of trust mechanism ofservice level is proposed, four properties such as security and reliability of service node are set up,at the same time, the dynamic weight relationship between attributes is set up by using fuzzyclustering and information entropy mathematical methods, Thus a more scientific and effectiveabout service node trust value is achieved.Finally, the trust online monitoring system is designed, through concrete examples, thescientificity and effectiveness of the dynamic trust mechanism of this article are verified.