Table 3.
Risk stratification performance based on top 10 features. Three classifications are examined: Normotension (48 subjects) vs. Prehypertension (41 subjects), Normotension (48 subjects) vs. Hypertension (35 subjects), and Normotension + Prehypertension (89 subjects) vs. Hypertension (35 subjects). The classifier with the highest F1 score is highlighted in yellow. LDA stands for Linear Discriminant Analysis; SVM stands for Support Vector Machines, KNN stands k-nearest neighbors, and LR stands for Logistic Regression.
| LDA | LR | Cubic SVM | Weight KNN | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Index | PP | SE | F1 | PP | SE | F1 | PP | SE | F1 | PP | SE | F1 | |
|
Normal (n = 48)
vs. Prehyp. (n = 41) |
Spearman | 75.76% | 60.98% | 67.57% | 70.27% | 63.41% | 66.67% | 67.57% | 60.98% | 64.10% | 75.00% | 58.54% | 65.75% |
| ReliefF | 71.79% | 68.29% | 70.00% | 74.36% | 70.73% | 72.50% | 65.12% | 68.29% | 66.67% | 81.82% | 65.85% | 72.97% | |
| Info Gain | 78.13% | 60.98% | 68.49% | 73.53% | 60.98% | 66.67% | 60.00% | 51.22% | 55.26% | 80.65% | 60.98% | 69.44% | |
| Chi2 | 70.27% | 63.41% | 66.67% | 72.73% | 58.54% | 64.86% | 55.00% | 53.66% | 54.32% | 75.00% | 58.54% | 65.75% | |
| mRMR | 79.41% | 65.85% | 72.00% | 76.47% | 63.41% | 69.33% | 55.56% | 60.98% | 58.14% | 71.43% | 60.98% | 65.79% | |
| Gini | 70.59% | 58.54% | 64.00% | 67.57% | 60.98% | 64.10% | 58.54% | 58.54% | 58.54% | 73.53% | 60.98% | 66.67% | |
|
Normal (n = 48)
vs. Hyp. (n = 35) |
Spearman | 93.33% | 80.00% | 86.15% | 91.18% | 88.57% | 89.86% | 88.57% | 88.57% | 88.57% | 90.32% | 80.00% | 84.85% |
| ReliefF | 93.55% | 82.86% | 87.88% | 87.50% | 80.00% | 83.58% | 96.77% | 85.71% | 90.91% | 93.75% | 85.71% | 89.55% | |
| Info Gain | 93.55% | 82.86% | 87.88% | 82.86% | 82.86% | 82.86% | 100.00% | 82.86% | 90.63% | 93.55% | 82.86% | 87.88% | |
| Chi2 | 93.10% | 77.14% | 84.38% | 87.88% | 82.86% | 85.29% | 100.00% | 77.14% | 87.10% | 96.67% | 82.86% | 89.23% | |
| mRMR | 87.10% | 77.14% | 81.82% | 78.38% | 82.86% | 80.56% | 96.77% | 85.71% | 90.91% | 100.00% | 85.71% | 92.31% | |
| Gini | 93.33% | 80.00% | 86.15% | 87.88% | 82.86% | 85.29% | 100.00% | 80.00% | 88.89% | 93.55% | 82.86% | 87.88% | |
|
Normal + Prehyp. (n = 89)
vs. Hyp. (n = 35) |
Spearman | 59.26% | 45.71% | 51.61% | 62.86% | 62.86% | 62.86% | 65.52% | 54.29% | 59.38% | 86.36% | 54.29% | 66.67% |
| ReliefF | 68.97% | 57.14% | 62.50% | 60.00% | 60.00% | 60.00% | 87.10% | 77.14% | 81.82% | 87.50% | 60.00% | 71.19% | |
| Info Gain | 69.57% | 45.71% | 55.17% | 60.61% | 57.14% | 58.82% | 58.33% | 40.00% | 47.46% | 76.19% | 45.71% | 57.14% | |
| Chi2 | 64.00% | 45.71% | 53.33% | 54.55% | 51.43% | 52.94% | 76.00% | 54.29% | 63.33% | 88.89% | 45.71% | 60.38% | |
| mRMR | 73.08% | 54.29% | 62.30% | 67.86% | 54.29% | 60.32% | 52.50% | 60.00% | 56.00% | 76.00% | 54.29% | 63.33% | |
| Gini | 66.67% | 51.43% | 58.06% | 59.38% | 54.29% | 56.72% | 79.17% | 54.29% | 64.41% | 84.00% | 60.00% | 70.00% | |