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Computational Intelligence and Neuroscience
Volume 2016, Article ID 9328062, 12 pages
Research Article

Main Trend Extraction Based on Irregular Sampling Estimation and Its Application in Storage Volume of Internet Data Center

1Baidu, Inc., Beijing 100085, China
2Center of Quality Engineering, AVIC China Aero-Polytechnology Establishment, Beijing 100028, China
3School of Computer and Information Engineering, Beijing Technology and Business University, Beijing 100048, China

Received 31 August 2016; Accepted 15 November 2016

Academic Editor: Francisco Martínez-Álvarez

Copyright © 2016 Beibei Miao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The storage volume of internet data center is one of the classical time series. It is very valuable to predict the storage volume of a data center for the business value. However, the storage volume series from a data center is always “dirty,” which contains the noise, missing data, and outliers, so it is necessary to extract the main trend of storage volume series for the future prediction processing. In this paper, we propose an irregular sampling estimation method to extract the main trend of the time series, in which the Kalman filter is used to remove the “dirty” data; then the cubic spline interpolation and average method are used to reconstruct the main trend. The developed method is applied in the storage volume series of internet data center. The experiment results show that the developed method can estimate the main trend of storage volume series accurately and make great contribution to predict the future volume value.