Mathematical Problems in Engineering
Volume 2017 (2017), Article ID 6872060, 1 page
https://doi.org/10.1155/2017/6872060

Corrigendum

Corrigendum to “A Diagnosis Method for Rotation Machinery Faults Based on Dimensionless Indexes Combined with -Nearest Neighbor Algorithm”

Jianbin Xiong,1,2 Qinghua Zhang,1,2 Zhiping Peng,² Guoxi Sun,² Weichao Xu,³ and Qi Wang²

¹Guangdong Provincial Key Laboratory of Petrochemical Equipment Fault Diagnosis, Maoming 525000, China
²School of Computer and Electronic Information, Guangdong University of Petrochemical Technology, Maoming 525000, China
³School of Automation, Guangdong University of Technology, Guangzhou 510006, China

Correspondence should be addressed to Guoxi Sun; 158011382@qq.com

Received 3 January 2016; Accepted 13 December 2016; Published 28 June 2017

Copyright © 2017 Jianbin Xiong 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.

In the article titled “A Diagnosis Method for Rotation Machinery Faults Based on Dimensionless Indexes Combined with -Nearest Neighbor Algorithm” [1], there was an error in the “Theory” section which should be corrected as follows.

when , , kurtosis index is defined as

should be corrected to

when , , kurtosis index is defined as

References

J. Xiong, Q. Zhang, Z. Peng, G. Sun, W. Xu, and Q. Wang, “A diagnosis method for rotation machinery faults based on dimensionless indexes combined with -nearest neighbor algorithm,” Mathematical Problems in Engineering, vol. 2015, Article ID 563954, 9 pages, 2015.