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letter
. 2023 Mar 23;13(2):221–233. doi: 10.1007/s13534-023-00271-1

Fig. 4.

Fig. 4

Model architecture. The left figure shows the overall architecture in training step. After training is finished, the model estimates SBP and DBP and monitors the MAE. If the MAE is 5 or above, the pre-trained model is recalled and new data set are fed in to the model to relearn and calibrate