A Research On Trusted Services Adaptation Based On Intelligent Algorithms In Social Internet Of Things

Social Internet of Things has an open,dynamic and changeable network environment.With the increasingly personalized and diversed users' demands,single service has been unable to meet the needs of users,therefore,it is necessary to combine services with certain rules in an orderly manner for users to invoke an on-demand effective adaptation.However,with the complexity of user requirements,the existing methods are difficult to guarantee accuracy of the solution.Therefore,it is of great theoretical significance and application prospect to effectively select and improve intelligent optimization algorithms to solve the problem of services adaptation.In order to improve the success rate of services adaptation,this thesis mainly studies the problem of trusted services adaptation in Social Internet of Things,so as to meet users' needs in a high quality.The main work of this thesis is as follows:(1)An adaptive dynamic trusted evaluation model with filtering mechanism has been proposed.For recommenders,this model filters out more suitable recommender to provide recommendation information,and builds a complete trusted evaluation mechanism,which updates the trust of nodes in real time.The experimental results validate the convergence,accuracy and flexibility of the model,and the model still has the high flexibility in a very hostile environment.(2)A trusted services adaptation mechanism based on local search based artificial bee colony algorithm has been proposed.The mechanism builds a trusted services adaptation model with trust as constraints and multi quality of service attributes as parameters in Social Internet of Things,and proposes a local search based artificial bee colony algorithm to solve this model,which can solve the complex problem of services adaptation and also guarantee the trust of the service in Social Internet of Things.(3)The case of the trusted services adaptation in the Social Internet of Things has been analyzed.Through the description and analysis of smart home procurement adaptation,the process of trusted services adaptation mechanism is given in detail,which verifies the feasibility and effectiveness of the mechanism.