Figure 4
From: Enhancing cardiotocography classification via ensemble learning and threshold optimization
Ranked importance of all extracted features used in CTG classification. Feature bars are color-coded by their category, including time-domain (orange), frequency-domain (green), autocorrelation (purple), Jx-EMGT or EMG-inspired (blue), and clinical fetal heart rate morphological features (red). The dominance of EMG and time-domain metrics is evident among the highest-ranked inputs. Please refer to Table 15 for feature name abbreviations and their full terms.
