TABLE II.
The correct classification percentages for data set 2 using different wavelet bases, feature sets, and k values for k-NN classifier
|
k |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Wavelet Bases | Features | 1 | 3 | 5 | 7 | 9 | 1 | 3 | 5 | 7 | 9 |
| Before Weight | After Weight | ||||||||||
| db2 | e1 | 94.2 | 93.2 | 92.4 | 91.7 | 90.4 | 94.9 | 94.8 | 94.0 | 93.4 | 92.4 |
| e2 | 82.4 | 84.1 | 84.0 | 84.1 | 84.1 | 90.4 | 91.7 | 91.8 | 92.1 | 92.1 | |
| e1&e2 | 92.6 | 93.8 | 94.1 | 94.0 | 93.9 | 96.5 | 96.4 | 96.2 | 95.7 | 95.7 | |
|
| |||||||||||
| db4 | e1 | 93.3 | 92.8 | 91.9 | 91.9 | 91.2 | 95.6 | 94.7 | 94.7 | 94.1 | 92.8 |
| e2 | 82.1 | 83.7 | 85.2 | 85.5 | 86.0 | 93.0 | 94.3 | 94.1 | 94.3 | 94.3 | |
| e1&e2 | 94.3 | 94.9 | 94.9 | 95.1 | 95.4 | 97.1 | 97.3 | 97.2 | 96.8 | 96.3 | |
|
| |||||||||||
| db6 | e1 | 93.9 | 93.9 | 93.5 | 93.1 | 92.3 | 95.5 | 95.1 | 94.7 | 94.4 | 93.2 |
| e2 | 79.0 | 80.9 | 82.4 | 82.9 | 82.7 | 91.6 | 92.5 | 92.6 | 92.8 | 92.9 | |
| e1&e2 | 93.1 | 94.2 | 94.4 | 94.7 | 94.5 | 96.7 | 97.4 | 97.1 | 97.0 | 96.6 | |
|
| |||||||||||
| db12 | e1 | 94.6 | 94.0 | 93.8 | 93.6 | 93.0 | 95.6 | 95.5 | 95.1 | 94.9 | 93.8 |
| e2 | 68.8 | 71.5 | 72.8 | 74.5 | 75.5 | 85.4 | 87.6 | 88.3 | 88.8 | 89.3 | |
| e1&e2 | 89.6 | 91.5 | 91.5 | 91.9 | 91.8 | 96.4 | 96.8 | 97.2 | 96.7 | 96.1 | |