Table 5 Comparative analysis of evaluation indexes of four fusion models.

From: Analysis and construction of the coal and rock cutting state identification system in coal mine intelligent mining

Evaluation indexes

HIS

PCA

WT

MW

Standard deviation

0.1521

0.1577

0.1942

0.2011

Articulation

3.8127

4.7622

5.3161

5.9785

Signal to noise ratio

1.2144

1.5136

5.2273

7.1484

Average error

24.1194

23.2712

15.3353

12.6026

Mutual information

1.1146

1.1383

1.1757

1.1902

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