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CN
2007

Information retrieval in schema-based P2P systems using one-dimensional semantic space

13 years 11 months ago
Information retrieval in schema-based P2P systems using one-dimensional semantic space
The widespread use of RDF-based information necessitates efficient information retrieval techniques in wide-area networks. In this paper, we present Dynamic Semantic Space, a schema-based peer-to-peer overlay network that facilitates efficient lookup for RDF-based information in dynamic environments. Peers in this overlay are grouped based on the semantics of their data which are extracted according to a set of schemas, and self-organized as a semantic overlay network. To reduce overheads incurred by peer joining, leaving and content changes in a high-dimensional overlay network, peers are constructed as a one-dimensional semantic space that facilitates efficient routing for both pull and push requests. A search or a subscription request is only routed to the appropriate cluster that holds related data, thus reducing unnecessary search cost and increasing the efficiency of locating information. Through a comprehensive simulation study, we demonstrate the effectiveness of our proposed...
Tao Gu, Hung Keng Pung, Daqing Zhang
Added 12 Dec 2010
Updated 12 Dec 2010
Type Journal
Year 2007
Where CN
Authors Tao Gu, Hung Keng Pung, Daqing Zhang
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