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2005
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An Empirical Study of Free-Riding Behavior in the Maze P2P File-Sharing System

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An Empirical Study of Free-Riding Behavior in the Maze P2P File-Sharing System
Maze1 is a P2P file-sharing system with an active and large user base. It is developed, deployed and operated by an academic research team. As such, it offers ample opportunities to conduct experiments to understand user behavior. Embedded in Maze is a set of incentive policies designed to encourage sharing and contribution. This paper presents an in-depth analysis of the effectiveness of the incentive policies and how users react to them. We found that in general the policies have been effective. But they also encourage the more selfish users to cheat by whitewashing their accounts as a variation of Sybil attack. We examine multiple factors that may contribute to the free-riding behavior. Our conclusions are that upload speed, NAT and amount of shared files are not the problems, and selfish behavior is demonstrated more by shorter online time. Since free-riders are also avid consumers of popular files, we suggest a two-pronged approach to reduce free-riding further: mechanisms to dir...
Mao Yang, Zheng Zhang, Xiaoming Li, Yafei Dai
Added 27 Jun 2010
Updated 27 Jun 2010
Type Conference
Year 2005
Where IPTPS
Authors Mao Yang, Zheng Zhang, Xiaoming Li, Yafei Dai
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