Using heuristics to improve service portfolio selection in P2P grids
IM'09 Proceedings of the 11th IFIP/IEEE international conference on Symposium on Integrated Network Management
Fast and scalable simulation of volunteer computing systems using SimGrid
Proceedings of the 19th ACM International Symposium on High Performance Distributed Computing
Characterizing and harnessing peer-production of information in social tagging systems
Proceedings of the fifth ACM international conference on Web search and data mining
Capacity and load-aware service discovery with service selection in peer-to-peer grids
Future Generation Computer Systems
Trans-Social networks for distributed processing
IFIP'12 Proceedings of the 11th international IFIP TC 6 conference on Networking - Volume Part I
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In this paper we study reciprocation-based mechanisms to encourage donation in peer-to-peer grids in which multiple services, such as processing power and data transfers, are shared explicitly. We have modeled such a system and established how peers should assess whether it is profitable to exchange services with another peer, an issue that is not present in the single service case. Unfortunately, this assessment relies on information provided by untrustworthy peers. As an alternative, we have extended, to the case of multiple services, a reciprocation-based mechanism which uses only reliable information gathered locally. We have assessed this mechanism by simulating scenarios in which services are exchanged that are combinations of two different basic services. In the explored scenarios the mechanism performs very well, and can marginalize free riders even when the cost to peers of donating a service is nearly as large as the utility gained by receiving it.