Figure 2
From: Data Driven Investigation of Bispectral Index Algorithm
Decision tree analysis and performance evaluation. The decision tree developed with the balanced training dataset indicates that BSR, EMG, SEF, and RBR are classifiers to determine 5 different BIS ranges. The accuracy and positive predictive values calculated in the balanced test dataset are represented in the decision and leaf nodes. Abbreviations: BIS = bispectral index, BSR = burst suppression ratio, EMG = power of electromyography, PPV = positive predictive value, RBR = relative beta ratio, SEF = 95% spectral edge frequency.
