Concept-Based Query Transformation Based on Semantic Centrality in Semantic Peer-to-Peer Environment
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.
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- 1.Jung, J.J., Euzenat, J.: From personal ontologies to semantic social space. In: Poster of the 4th European Semantic Web Conference, ESWC 2006 (2006)Google Scholar
- 2.Euzenat, J., Valtchev, P.: Similarity-based ontology alignment in OWL-Lite. In: de Mántaras, R.L., Saitta, L. (eds.) Proceedings of the 16th European Conference on Artificial Intelligence (ECAI’2004), Valencia, Spain, August 22-27, 2004, pp. 333–337. IOS Press, Amsterdam (2004)Google Scholar
- 3.Newman, M.E.J.: Fast algorithm for detecting community structure in networks. Physical Review E 69, 066133 (2004)Google Scholar