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. 2022 Jan 21;11(2):169. doi: 10.3390/biology11020169

Table 3.

The parameters in LSTM models used in this study. Time step refers to the length of input features used to make predictions. Loss function measures the difference between predicted and observed values. Number of units refers to the number of units in the LSTM layer. Epoch represents the number of completed training using all data in a training set. Batch size refers to the size of the input data used to update LSTM parameters one time. Learning rate refers to the rate for updating LSTM parameters. Optimizer refers to the algorithm for updating parameters. Dropout rate is the percent of units in the LSTM layer that is randomly discarded in the model training. The two groups of LSTM parameters were fixed separately by comparing the RMSE and MAE computed, based on validation, dataset.

Parameters LSTM with NDVImean, RHmean, Rsum and Tmean LSTM with Historical Dengue Data, NDVImean, RHmean, Rsum and Tmean
Time step 12 12
Loss function MSE MSE
Number of units 64 64
Epoch 1150 2000
Batch size 12 12
Learning rate 0.005 0.001
Optimizer Adam Adam
Dropout rate 0.8 0.65