Application in Feature Extraction of AE Signal for Rolling Bearing in EEMD and Cloud Similarity Measurement

Table 1

Comparison between the mutual information and cloud similarity of each IMF and original signal.

	IMF1	IMF2	IMF3	IMF4
Mutual information	0.1175	0.0998	0.0363	0.028
Cloud similarity	0.9653	0.9551	0	0