A Two-Level Sound Classification Platform for Environmental Monitoring
Table 8
Second-level classification, two-step implementation, and scalar features only-confusion matrix results for second-step classification of geophysical sounds to subclasses.
Fire samples classified to:
Gale samples classified to:
Waterfall samples classified to:
Correctly classified samples
Fire
1485
15
15
1485
Gale
0
1470
15
1470
Waterfall
15
15
1470
1470
Total samples
1500
1500
1500
4425/4500 = 98.33%
Probability of correct classification of geophysical during the first step (Table 2, row 1, column 1)
4446/4500 = 98.80%
Total accuracy of two-step classification for geophysical sounds
