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ECIR
2007
Springer

A Decision-Theoretic Model for Decentralised Query Routing in Hierarchical Peer-to-Peer Networks

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A Decision-Theoretic Model for Decentralised Query Routing in Hierarchical Peer-to-Peer Networks
Abstract. Efficient and effective routing of content-based queries is an emerging problem in peer-to-peer networks, and can be seen as an extension of the traditional “resource selection” problem. The decision-theoretic framework for resource selection aims, in contrast to other approaches, at minimising overall costs including e.g. monetary costs, time and retrieval quality. A variant of this framework has been successfully applied to hierarchical peer-to-peer networks (where peers are partitioned into DL peers and hubs), but that approach considers retrieval quality only. This paper proposes a new model which is capable of considering also the time costs of hubs (i.e., the number of hops in subsequent steps). The evaluation on a large test-bed shows that this approach dramatically reduces the overall retrieval costs.
Henrik Nottelmann, Norbert Fuhr
Added 29 Oct 2010
Updated 29 Oct 2010
Type Conference
Year 2007
Where ECIR
Authors Henrik Nottelmann, Norbert Fuhr
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