http://dx.doi.org/10.1016/j.bjp.2013.12.010">
 

Document Type

Journal Article

Department/Unit

Department of Computer Science

Title

User behaviors in private BitTorrent communities

Language

English

Abstract

Many private BitTorrent communities employ Sharing Ratio Enforcement (SRE) schemes to incentivize users to contribute. It has been demonstrated that users in private communities are highly dedicated and that they seed much longer than users in communities where SRE is not employed. While most previous studies focus on showing the positive effect of user dedication in achieving high download speed, in this paper we explore the user behaviors in private communities, we argue the reasons for these behaviors, and we demonstrate both the positive and the negative effects of these behaviors. We show that under SRE, users seed for excessively long times to maintain required sharing ratios, but that their seedings are often not very productive (in terms of low upload speed) and that their long seeding times do not necessarily lead to large upload amounts. We find that as users evolve in the community, some users become more committed, in terms of increasing ratios between their seeding and leeching times. In the mean time, some users game the system by keeping risky and low sharing ratios while leeching more often than seeding. Based on these observations, we analyze strategies that alleviate the negative effects of these user behaviors from both the user's and the community administrator's perspective. © 2013 Elsevier B.V. All rights reserved.

Keywords

Incentive policy, Peer-to-Peer, Private BitTorrent community, Sharing ratio enfocement, User behavior

Publication Date

2014

Source Publication Title

Computer Networks

Volume

60

Start Page

34

End Page

45

Publisher

Elsevier

ISSN (print)

13891286

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