Research Area:  Cloud Computing
A large number of resources are integrated into a data center to provide various resource services in cloud computing. A major challenge is how to provide resources timely and accurately to satisfy users demands. However, users resource demands change constantly and sometimes fluctuate very strong. The resource provision may be not performed in time. And even, sometimes the active physical resources may be too insufficient to satisfy users demands because some of them are shut down in order to reduce energy. So it is important to provide a proactive resource provision to guarantee good users experiences in cloud computing. The key is to predict the future resource demands accurately to support resource provision in advance. In this paper, we propose a resource demand prediction method EEMD-ARIMA based on ensemble empirical mode decomposition (EEMD) in cloud computing. This method decomposes the non-stationary users resource demands into a plurality of intrinsic mode function components (IMFs) and residual component (RES) through EEMD method to improve the prediction accuracy. The experimental results show that our method has a higher prediction accuracy compared with the existing ARIMA prediction model in the short-term prediction of cloud resource demands.
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Author(s) Name:  Jing Chen, Yinglong Wang
Journal name:  Procedia Computer Science
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Publisher name:  ACM Digital Library
DOI:  10.1016/j.procs.2018.04.193
Volume Information:  Volume 131, Pages 116 - 123, (2018)
Paper Link:   https://dl.acm.org/doi/abs/10.1016/j.procs.2018.04.193