| CNN | Convolutional neural network |
| SVM | Support Vector Machine |
| RNN | Recurrent Neural Networks |
| DRNN | Deep Recurrent Neural Network |
| MFCC | Mel-Frequency Cepstrum Coefficient |
| CRNN | Deep Convolutional andRrecurrent Deural Network |
| DNN | Deep Neural Network |
| HMM | Hidden Markov model |
| ALMMo-0* | Zero-Order Autonomous Learning Multiple-Model |
| TQWT | Tunable Q-factor Wavelet Transform |
| VMD | Variational Mode Decomposition |
| NN | Neural Network |
| TWSVM | Twin Support Vector Machine |
| MSAR | Markov-Switching Autoregressive |
| LOFO | Leave-One-Feature-Out |