Supporting Trust in Virtual Communities
HICSS '00 Proceedings of the 33rd Hawaii International Conference on System Sciences-Volume 6 - Volume 6
Free-riding and whitewashing in peer-to-peer systems
Proceedings of the ACM SIGCOMM workshop on Practice and theory of incentives in networked systems
Fighting peer-to-peer SPAM and decoys with object reputation
Proceedings of the 2005 ACM SIGCOMM workshop on Economics of peer-to-peer systems
A multi-swarm approach for neighbor selection in peer-to-peer networks
CSTST '08 Proceedings of the 5th international conference on Soft computing as transdisciplinary science and technology
A P2P file sharing network topology formation algorithm based on social network information
INFOCOM'09 Proceedings of the 28th IEEE international conference on Computer Communications Workshops
Multi-objective peer-to-peer neighbor-selection strategy using genetic algorithm
HiPC'07 Proceedings of the 14th international conference on High performance computing
Self-Organized Formation and Evolution of Peer-to-Peer Networks
INFORMS Journal on Computing
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Currently, peer-to-peer (P2P) networks suffer from users that do not contribute any kind of resources to the P2P community. Those users, which are called freeriders, benefit largely from contributions of other users but reduce the system performance for contributing users. This paper proposes an incentive scheme for P2P networks that motivates users to collaborate within the system. The solution that we propose has an impact on the topology formation of a P2P network. Using our market-managed topology formation algorithm (IUTopForm) for P2P networks, contributing users will be clustered within clubs that are different to clubs of freeriders. The differentiation is possible because of a reputation system, which considers users’ past contributions. The effect of this approach is that service requests of freeriders will take longer to be answered (if at all) than service requests of resource-contributing users. We illustrate this effect through measurements with our P2P network simulator. We also show that clubs are only interconnected if the difference in their reputation values is not large. The comparison with Bagla and Kapalia’s approach, which inspired our work, shows that the IUTopForm approach improves the overall utility of the system. The utility function and the topology formation algorithm are described in detail within this paper.