Λεπτομέρειες

ΕίδοςΔημοσίευση
ΚωδικόςTR-2006-4
ΤίτλοςGrouPeer: Dynamic Clustering of P2P Databases
ΣυγγραφέαςΒηρένα Καντερέ, Δημήτρης Τσουμάκος, Τίμος Σελλής, Νίκος Ρουσσόπουλος
Έτος2006
Λέξεις κλειδιάp2p databases
ΠερίληψηPeer-to-Peer networking has become a major research topic over the last few years. Sharing of structured data in such decentralized environments is a challenging problem, especially in the absence of a global schema. The standard practice of answering a query that is consecutively rewritten along the propagation path often results in signicant loss of information. In this paper, we present an adaptive and bandwidth-efcient solution to the problem in the context of an unstructured, purely decentralized system. Our method allows peers to individually choose which rewritten version of a query to answer and discover information-rich sources left hidden otherwise. Utilizing normal query trafc only, we describe how efcient query routing and clustering of peers can be used to produce high quality answers. Experimental results show that our technique produces very accurate answers and clusters very close to the optimal values by contacting a very small number of nodes inside the overlay.
ΚατηγορίαP2P Data Management
ΔημοσίευσηTechnical Report
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