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Super-peer-based routing strategies for RDF-based peer-to-peer networks

✍ Scribed by Wolfgang Nejdl; Martin Wolpers; Wolf Siberski; Christoph Schmitz; Mario Schlosser; Ingo Brunkhorst; Alexander Löser

Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
250 KB
Volume
1
Category
Article
ISSN
1570-8268

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✦ Synopsis

RDF-based P2P networks have a number of advantages compared to simpler P2P networks such as Napster, Gnutella or to approaches based on distributed indices on binary keys such as CAN and CHORD. RDF-based P2P networks allow complex and extendable descriptions of resources instead of fixed and limited ones, and they provide complex query facilities against these metadata instead of simple keyword-based searches.

In this paper, we will discuss RDF-based P2P networks like Edutella as a specific example of a new type of P2P networksschema-based P2P networks-and describe the use of super-peer based topologies for these networks. Super-peer based networks can provide better scalability than broadcast based networks, and provide support for inhomogeneous schema-based networks, with different metadata schemas and ontologies (crucial for the Semantic Web). Based on (dynamic) metadata routing indices, stated in RDF, the super-peer network supports sophisticated routing and distribution strategies, as well as preparing the ground for advanced mediation and clustering functionalities.

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