A Dynamic Web Services Selection Algorithm Based on Trust Model for Grid Environment

In order to find the service nodes, which the users are satisfied with, in a high speed and efficiency in open network environment, a new grid-oriented multi-level service selection model is proposed, which is based on the concept of user-similarity group. On this condition, direct trust calculation based on time decay is given and fine-grained recommendation trust calculation is studied, which can distinguish the ability of honesty. In addition, based on activity level of nodes, dynamic weight-allocation method is proposed, which can make the prediction results be closer to the fact. After job-interaction, the update algorithm about honesty ability of recommendation nodes is researched, which will provide more reasonable and reliable reference for the next prediction. Simulation results show that the service selection model and trust calculation methods are reasonable and accurate.

[1]  Xiao-She Dong,et al.  A Trust Model Based on Behaviors Risk Evaluation: A Trust Model Based on Behaviors Risk Evaluation , 2009 .

[2]  Lang Bo.  Access control oriented quantified trust degree representation model for distributed systems , 2010 .

[3]  Sun Yu.  Bayesian Decision-Making Based Recommendation Trust Revision Model in Ad Hoc Networks , 2009 .

[4]  Leandros Tassiulas,et al.  Trust-based exchange of services to motivate cooperation in P2P networks , 2011, Peer-to-Peer Netw. Appl..

[5]  Zhang Run.  A Trust Model Based on Behaviors Risk Evaluation , 2009 .

[6]  Wang Hai-yan.  Trust transitivity algorithm based on multiple influencing factors for grid environment , 2011 .

[7]  Zhang Yong-ping.  A Trust Evaluation Model Based on Fuzzy Set for Grid Environment , 2008 .

[8]  Tharam S. Dillon,et al.  Fuzzy trust evaluation and credibility development in multi-agent systems , 2007, Appl. Soft Comput..

[9]  Li Ming.  Grid Dynamic Authorization Model Based on Feedback Mechanism , 2009 .

[10]  Xiao-Yong Li,et al.  Adaptive Dynamic Trust Measurement and Prediction Model Based on Behavior Monitoring: Adaptive Dynamic Trust Measurement and Prediction Model Based on Behavior Monitoring , 2009 .

[11]  Ren Xing-tian.  A Trust Enhanced Service Composition Scheduling Algorithm , 2009 .

[12]  Li-Jun Chen,et al.  Bayesian Decision-Making Based Recommendation Trust Revision Model in Ad Hoc Networks: Bayesian Decision-Making Based Recommendation Trust Revision Model in Ad Hoc Networks , 2009 .

[13]  Yang Xiang,et al.  A novel capacity and trust based service selection mechanism for collaborative decision making in CPS , 2011, Comput. Sci. Inf. Syst..

[14]  Deren Chen,et al.  User‐centric trust and reputation model for personal and trusted service selection , 2011, Int. J. Intell. Syst..

[15]  Li Xiao.  Adaptive Dynamic Trust Measurement and Prediction Model Based on Behavior Monitoring , 2009 .

[16]  Jongmoon Baik,et al.  A QOS Enhanced Framework and Trust Model for Effective Web Services Selection , 2010, J. Web Eng..