A two-tier semantic overlay network for P2P search

Tao Gu, Daqing Zhang, Hung Keng Pung
2007 2007 International Conference on Parallel and Distributed Systems  
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 ontologybased 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
more » ... 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:10.1109/icpads.2007.4447754 dblp:conf/icpads/GuZP07 fatcat:r5llk4ajzjfyhnnxb4uohptop4