Table 2. Mean accuracy and standard deviation of the test accuracy for ten runs each with raw data and Fourier transformed data with a DFT length of 1600, 1200, 800 und 400 samples.
No. | Data | N | mean test accuracy | std |
|---|---|---|---|---|
1 | raw | – | 86.20% | 6.11% |
2 | DFT | 1600 | 94.07% | 2.41% |
3 | DFT | 1200 | 92.98% | 2.16% |
4 | DFT | 800 | 90.13% | 3.61% |
5 | DFT | 400 | 87.33% | 3.01% |