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Title : Survey of Research towards Robust Peer-to-Peer Networks: Search Methods
Author(s) : J. Risson, T. Moors
Filename : draft-irtf-p2prg-survey-search-01.txt
Pages : 82
Date : 2007-3-5
The pace of research on peer-to-peer (P2P) networking in the last
five years warrants a critical survey. P2P has the makings of a
disruptive technology - it can aggregate enormous storage and
processing resources while minimizing entry and scaling costs.
Failures are common amongst massive numbers of distributed peers,
though the impact of individual failures may be less than in
conventional architectures. Thus the key to realizing P2P's potential
in applications other than casual file sharing is robustness.
P2P search methods are first couched within an overall P2P taxonomy.
P2P indexes for simple key lookup are assessed, including those based
on Plaxton trees, rings, tori, butterflies, de Bruijn graphs and skip
graphs. Similarly, P2P indexes for keyword lookup, information
retrieval and data management are explored. Finally, early efforts to
optimize range, multi-attribute, join and aggregation queries over
P2P indexes are reviewed. Insofar as they are available in the
primary literature, robustness mechanisms and metrics are highlighted
throughout. However, the low-level mechanisms that most affect
robustness are not well isolated in the literature. Recommendations
are given for future research.
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