Table 2 Selected optimal hyper-parameters as number (No.) of hidden neurons, optimal (Opt.) window size, average test accuracy values, and the corresponding standard deviations for each model
unreconstr. | naïve | HMM | BiLSTM-bin | BiLSTM-logi | BiLSTM-RSSI | |
|---|---|---|---|---|---|---|
No. hidden neurons | – | – | – | 64 | 16 | 32 |
Opt. window size | 0 | 6 | 6 | 27 | 25 | 27 |
Average accuracy | 77.28 % | 83.36% | 84.25% | 88.34% | 89.02% | 90.03% |
Standard deviation | 14.91% | 12.11% | 11.67% | 9.55% | 9.36% | 8.99% |