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. 2023 May 26;13(11):1863. doi: 10.3390/diagnostics13111863

Figure 4.

Figure 4

Schematic diagram of the iRF model. This study used the iRF algorithm to analyze the feature importance of a data set. The iRF model is based on the random forest algorithm, but it includes additional steps to eliminate less essential features and iteratively retrain the model. The dark green squares represent the classification results at the endpoints of each tree branch.