Retraction to: Cluster Computing (2019) 22:S3621–S3641 https://doi.org/10.1007/s10586-018-2212-1

The Editor-in-Chief is retracting this article at the request of the corresponding author Lei Wang because the model, the algorithm and the results presented are the work of Liu Aijun and Hu Hesuan of Xidian University. The Associate Dean (Research), School of Economics and Management, Xidian University, has confirmed that the intellectual property in this work belongs to Xidian University. Xiao Zhao, Xuhui Xia and Jianhua Cao have not responded to correspondence from the Publisher about this retraction.