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KNN performance under variable K value with the FFT amplitude
| K | Accuracy rate (%) | Computation time (sec) |
|---|---|---|
| 1 | 94.7368 | 0.060759 |
| 2 | 94.7368 | 0.044100 |
| 3 | 68.4211 | 0.003209 |
| 4 | 84.2105 | 0.004112 |
| 5 | 73.6842 | 0.003160 |
| 6 | 78.9474 | 0.003282 |
| 7 | 73.6842 | 0.003519 |
| 8 | 73.6842 | 0.003193 |
| 9 | 73.6842 | 0.003118 |
| 10 | 73.6842 | 0.003153 |
Bold entries specify the highest accuracy rate and lowest computation time
