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Additional implementation details of the six models.
| Model | Number of Hidden Layers | Number of Units | Number of Convolution Filters | Size of Convolution Kernels |
|---|---|---|---|---|
| LSTM | 3 | 50 | – | – |
| Bi-LSTM | 3 | 50 | – | – |
| Conv-LSTM | 3 | – | 64 | 12 |
| Bi-Conv-LSTM | 3 | – | 64 | 12 |
| GRU | 3 | 50 | – | – |
| Bi-GRU | 3 | 50 | – | – |
