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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Classification trees of Model I (a), Model II (b), Model III (c), and Model IV (d). Values reported inside decision nodes represent threshold values. Percentage values reported in leaf nodes represent the prediction probability, i.e., how likely the achieved class is the correct one.