Incentives: Difference between revisions
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== Point incentive system == |
== Point incentive system == |
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Simple point incentive mechanisms as in e.g. [[The Maze Peer-To-Peer System|Maze]] don't prevent users from cheating. ... |
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The [[The Maze Peer-To-Peer System|Maze]] P2P network consists of a simple point incentive system to prevent users from free-riding. Peers consume points by downloading and earn points by uploading files. According to their point total ''P'', peer's download requests are queued by ''<math>requestTime - 3\cdot log_{10}P</math>'' and provided with higher bandwidth. In order to encourage uploading and to prevent imposing hardships on peers with slow links and those holding many unpopular files, a rule was established which gives uploading more points |
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== EigenTrust == |
== EigenTrust == |
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Revision as of 18:00, 23 July 2007
Problem
File-sharing networks like KaZaA and Gnutella have popularized the peer-to-peer (P2P) resource sharing model. Based on the altruistic behaviour of its users, principles of P2P systems sometimes conflict user's rational individuality. The individual's utility function is also influenced by negative factors like e.g. upload costs, limited upload bandwidth, enviousness or egoism. Hence some users use P2P networks without sharing own resources (free-riding).
Incentive systems
Point incentive system
Simple point incentive mechanisms as in e.g. Maze don't prevent users from cheating. ...
EigenTrust
coming soon
Tit-for-Tat
coming soon