@inproceedings{Jung_Zimmermann_Euzenat:WAIM2007, author = {Jason J. Jung and Antoine Zimmermann and J{\'e}r{\^o}me Euzenat}, title = {{C}oncept-{B}ased {Q}uery {T}ransformation {B}ased on {S}emantic {C}entrality in {S}emantic {P}eer-to-{P}eer {E}nvironment}, year = {2007}, pages = {622--629}, booktitle = {{A}dvances in {D}ata and {W}eb {M}anagement, {J}oint 9th {A}sia-{P}acific {W}eb {C}onference, {APWeb} 2007, and 8th {I}nternational {C}onference, on {W}eb-{A}ge {I}nformation {M}anagement, {WAIM} 2007, {H}uang {S}han, {C}hina, {J}une 16-18, 2007, {P}roceedings}, month = jun, publisher = {Springer}, editor = {Guozhu Dong and Xuemin Lin and Wei Wang and Yun Yang and Jeffrey Xu Yu}, isbn = {978-3-540-72483-4}, series = {{L}ecture {N}otes in {C}omputer {S}cience}, volume = {4505}, language = {en}, url = {http://www.springerlink.com/content/tp8167844077785v/fulltext.pdf}, 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.} }