| CWT | Continuous wavelet transform |
| SVM | Support vector machine |
| ResNet | Residual networks |
| Polymethacrylimide | PMI |
| PTFE | Polytetrafluoroethylene |
| THz-TDS | Terahertz time-domain spectroscopy |
| ReLU | Rectified Linear Units |
| VGG-16 | Visual Geometry Group 16-layer network |
| VGG-19 | Visual Geometry Group 19-layer network |
| KNN | K-Nearest Neighbors |
| DT | Decision Tree |