Removed due to plagiarism.The original paper was published as: S. Saberi, P. Trunfio, D. Talia, M. Fesharaki, K. Badie, "Using Social Network and Semantic Overlay Network Approaches to Share Knowledge in Distributed Data Mining Scenarios". Proc. of the 8th Int. Conference on High Performance Computing and Simulation (HPCS 2010), Caen, France, pp. 536-544, IEEE Computer Society Press, June 2010. ISBN 978-1-4244-6827-0. DOI: 10.1109/HPCS.2010.5547080