A two-tier semantic overlay network for P2P search

This paper proposes a two-tier semantic peer-to-peer network that facilitates efficient search for context information in wide-area networks. Context data with the same semantics are grouped together into a one-dimensional semantic ring space in the upper-tier network. This is achieved by applying a...

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Main Authors: Tao Gu, Daqing Zhang, Hung Keng Pung
Format: Conference Proceeding
Language:English
Subjects:
Context modeling
Context Ontology
Context Search
Data mining
Ontologies
Peer to peer computing
Resource description framework
Scalability
Search engines
Semantic Peer-to-Peer Network
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creator Tao Gu
Daqing Zhang
Hung Keng Pung
description This paper proposes a two-tier semantic peer-to-peer network that facilitates efficient search for context information in wide-area networks. Context data with the same semantics are grouped together into a one-dimensional semantic ring space in the upper-tier network. This is achieved by applying an ontology- based semantic clustering technique and dedicating part of node identifiers to correspond to their data semantics. In the lower-tier network, peers in each semantic cluster are organized as Chord identifier space. Thus, all the nodes in the same semantic cluster know which node is responsible for storing context data triples they are looking for, and context queries can be efficiently routed to those nodes. Through the simulation studies, we demonstrate the effectiveness of our proposed scheme.
doi_str_mv 10.1109/ICPADS.2007.4447754
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Context modeling
Context Ontology
Context Search
Data mining
Ontologies
Peer to peer computing
Resource description framework
Scalability
Search engines
Semantic Peer-to-Peer Network
title A two-tier semantic overlay network for P2P search
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