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. Author manuscript; available in PMC: 2022 Dec 1.
Published in final edited form as: Crit Care Med. 2021 Dec 1;49(12):e1196–e1205. doi: 10.1097/CCM.0000000000005175

Figure 1: Schematic diagram of domain adaptation*.

Figure 1:

*-The connections between each node in the AISE2 model are initially assigned random “weights” to determine model output. The model was trained on a sample of data from the development site (the training set), which updated the model weights (step 1). Before the model was applied to a remote external site, domain adaptation was used to refine the model weights using a sample of new training data from the remote (validation) site (step 2). Therefore, the model was customized for prediction at the validation site.