Table 3. Models used for accent classification.
| Reference | Classifier | Type | Description |
|---|---|---|---|
| Brown & Wormald (2017) | SVM | Shallow model | Finds a hyperplane to segregate the data classes |
| Rizwan & Anderson (2018) | ELM | Shallow model | Single-layer neural network with only output weights tunable |
| Abdurrahman & Zahra (2021) | PLDA | Shallow model | Models data as a mixture of Gaussians |
| Adeeba & Hussain (2019) | RNN | Deep learning | Neural network with feedback |
| Najafian & Russell (2020) | CNN | Deep learning | A small kernel of neural network sliding across the input |