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A Comprehensive and Adaptive trust model for Large-Scale P2P Networks

Journal of Computer Science & Technology 2009年第5期24卷 868-882页

作者：李小勇桂小林 Department of Computer Science and Technology Xi'an Jiaotong University

Based on human psychological cognitive behavior, a Comprehensive and Adaptive trust （CAT） model for largescale P2P networks is proposed. Firstly, an adaptive trusted decision-making method based on HEW （Historical Evidences Window） is proposed, which can not only reduce the risk and improve system efficiency, but also solve the trust forecasting problem when the direct evidences are insufficient. Then, direct trust computing method based on IOWA （Induced Ordered Weighted Averaging） operator and feedback trust converging mechanism based on DTT （Direct trust Tree） are set up, which makes the model have a better scalability than previous studies. At the same time, two new parameters, confidence factor and feedback factor, are introduced to assign the weights to direct trust and feedback trust adaptively, which overcomes the shortage of traditional method, in which the weights are assigned by subjective ways. Simulation results show that, compared to the existing approaches, the proposed model has remarkable enhancements in the accuracy of trust decision-making and has a better dynamic adaptation capability in handling various dynamic behaviors of peers.

关键词： P2P networks dynamic trust model IOWA operator adaptability

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Research on Intelligent Mobile Commerce Transaction Security Mechanisms Based on Mobile Agent

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Computers, Materials & Continua 2020年第12期65卷 2543-2555页

作者： Weijin Jiang Wei Liu Haolong Xia Yuhui Xu Dongbo Cao Guo Liang College of Computer and Information Engineering Hunan University of Technology and BusinessChangsha410205China Institute of Big Data and Internet Innovation Mobile E-business Collaborative Innovation Center of Hunan ProvinceHunan University of Technology and BusinessChangsha410205China Key Laboratory of Hunan Province for New Retail Virtual Reality Technology Hunan University of Technology and BusinessChangsha410205China School of Bioinformatics University of MinnesotaTwin CitiesUSA

In networked mobile commerce network transactions,trust is the prerequisite and key to a smooth *** measurement of trust between entities involves factors such as transaction amount,transaction time,personal income of consumer entities and their risk attitude towards trust,etc.,so it is difficult to accurately calculate *** order to find out the essential characteristics of this trust relationship,based on the research background of mobile commerce in the mobile network environment,a dynamic trust mechanism is proposed through the research of trust in the mobile network environment,trust influencing factors and trust *** calculation model of mobile interactive services based on mobile service business *** model calculates feedback credibility through feedback deviation and feedback robustness,and combines transaction context factors and trust mapping mechanism to judge the seller’s *** model better reflects the degree of influence of subjective factors such as personal preferences and risk attitudes on trust calculations,And the sensitivity of trust algorithms and transaction attributes has been greatly *** a large number of experiments and theoretical analysis,this mechanism provides an effective explanation for solving the problem of network trust *** provides valuable new ideas for the study of secure transactions in the mobile Internet environment.

关键词： Mobile Internet mobile commerce dynamic trust model reputation management Mobile Agent System(MAS)

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Research on MAS-based cognitive model for mobile commerce secure transaction mechanism

Research on MAS-based cognitive model for mobile commerce se...

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2018中国信息通信大会(CICC2018)

作者： JIANG Wei-Jin CHEN Jia-Hui XU Yu-Hui Institute of Big Data and Internet Innovation Mobile E-business Collaborative Innovation Center of Hunan ProvinceHunan University of Commerce School of Computer Science and Technology Wuhan University of Technology

Mobile commerce is suitable for scenes with uncertain location and uncertain *** can get mobile services at any time and at any position while completing any *** transactions are *** biggest feature of mobile applications is the time to ***,the portability,flexibility and privacy of mobile terminals are also more in line with the business needs of the new *** Internet（MI）environment of randomness,fuzziness and uncertainty factors such as unpredictability to network trade brings many security problems,and in on-line transactions of the mobile commerce based on mobile Internet,trust is the premise and key which makes transactions *** measurement of trust between entities involves in trading volume,transaction time,personal income of consumer entity and its risk attitude to trust,and so on,which is difficult to be given accurately quantitative *** find out the nature of the trust relationship,we combine with cognitive theory and methods of social network in real life,mobile commerce in mobile network environment as the research background,by the research on problems in MI,such as trust,influencing factors to trust and trust mechanism,based on multi-Agent system coordination theory,a dynamic trust calculation model based on mobile Agent is *** model can achieve the qualitative and quantitative conversion of *** order to effectively prevent malicious users from the credit hype and deceptive behaviors,a special attribute evaluation method and trust punishment method are *** the existing new user trust value assignment method is improved,we proposed a system on the basis of previous minimum trust,dynamic set the method of the new user’s initial trust,effectively resist to the arbitrary abandonment of reputation *** the trading mechanism of the introduction of evaluation system and weight system,the model better reflects the subjective factors such as individual preference,r

关键词： Mobil Internet Mobil commerce dynamic trust model Reputation Management Mobil agent system(MAS) Online Transaction Security

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A semantic trust model of large scale distributed system based on Ontology

A semantic trust model of large scale distributed system bas...

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第30届中国控制与决策会议

作者： MingSheng Hu Kai Yang ZhiJuan Jia Zhengzhou Normal University

With the in-depth research of large-scale distributed application systems,the traditional software system ecology has shifted from closed relative static form to open,shared and publicly accessible dynamic collaborative service *** original trust model has been unable to adapt to the identification of new system security problems,so the research of the dynamic trust model has become a hot *** this paper,we propose a large scale distributed system trust model（LSDM） based ontology based large-scale distributed system semantic trust model,which aims to describe the interaction behaviors between entities,and give consideration to the sharing and scalability of *** the other hand,the RBTM trust calculation method is proposed to improve the recognition rate of the model based on LSDM.

关键词： distributed system dynamic trust model ontology semantics trusted computing

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