Concept-based query transformation based on semantic centrality in semantic peer-to-peer environment

Authors:
Jason J. Jung;Antoine Zimmerman;Jérôme Euzenat
Affiliations:
Inha University, Korea and INRIA Rhône-Alpes, France;INRIA Rhône-Alpes, France;INRIA Rhône-Alpes, France
Venue:
APWeb/WAIM'07 Proceedings of the joint 9th Asia-Pacific web and 8th international conference on web-age information management conference on Advances in data and web management
Year:
2007

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Abstract

Query transformation is a serious hurdle on semantic peer-to-peer environment. The problem is that the transformed queries might lose some information from the original one, as continuously traveling p2p networks. We mainly consider two factors; i) number of transformations and ii) quality of ontology alignment. In this paper, we propose semantic centrality (SC) measurement meaning the power of semantic bridging on semantic p2p environment. Thereby, we want to build semantically cohesive user subgroups, and find out the best peers for query transformation, i.e., minimizing information loss. We have shown an example for retrieving image resources annotated on p2p environment by using query transformation based on SC.