A Social Mechanism of Reputation Management in Electronic Communities
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GECON '08 Proceedings of the 5th international workshop on Grid Economics and Business Models
Smart cheaters do prosper: defeating trust and reputation systems
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NCA '10 Proceedings of the 2010 Ninth IEEE International Symposium on Network Computing and Applications
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GECON'11 Proceedings of the 8th international conference on Economics of Grids, Clouds, Systems, and Services
Client Classification Policies for SLA Enforcement in Shared Cloud Datacenters
CCGRID '12 Proceedings of the 2012 12th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (ccgrid 2012)
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Online Reputation Systems would help mitigate the information asymmetry between clients and providers in Cloud Computing Markets. However, those systems raise two main drawbacks: the disagreement for assuming the cost of ownership of such services and their vulnerability to reputation attacks from dishonest parties that want to increase their reputation. This paper faces both problems by describing a decentralized model that would not need from the intervention of a central entity for managing it. This model includes mechanisms for allowing participants to avoid such dishonest behaviour from other peers: each client statistically analyses the external reports about providers and accordingly weights them in the overall trust calculation. The validity of the model is demonstrated through experiments for several use cases.