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. Author manuscript; available in PMC: 2016 Jul 1.
Published in final edited form as: J Vasc Surg. 2015 May 5;62(1):8–15. doi: 10.1016/j.jvs.2015.02.038

Fig. 1.

Fig. 1

Schematic representation of the four-variable artificial neural network, ANN-4. The four variables on the left comprise the input layer. The four processing elements (nodes) represent the ANN’s hidden layer; a training value of 0.333 was used. The output layer is a predicted likelihood of death, transformed from 0 (survival to discharge) to 1 (in-hospital mortality).