Copyright: ©Author(s) 2026.
World J Gastroenterol. Apr 14, 2026; 32(14): 115162
Published online Apr 14, 2026. doi: 10.3748/wjg.v32.i14.115162
Published online Apr 14, 2026. doi: 10.3748/wjg.v32.i14.115162
Table 5 Specific sensitivity results of feature subset machine learning
| Sensitivity | Specificity | Accuracy | F1 score | |||||||||||||||||
| Model | 40 | 35 | 30 | 25 | 20 | 40 | 35 | 30 | 25 | 20 | 40 | 35 | 30 | 25 | 20 | 40 | 35 | 30 | 25 | 20 |
| SVM | 0.581 | 0.774 | 0.71 | 0.71 | 0.71 | 0.813 | 0.875 | 0.875 | 0.906 | 0.844 | 0.698 | 0.826 | 0.794 | 0.81 | 0.778 | 0.655 | 0.814 | 0.772 | 0.786 | 0.759 |
| RF | 0.677 | 0.742 | 0.742 | 0.677 | 0.71 | 0.688 | 0.719 | 0.719 | 0.719 | 0.813 | 0.683 | 0.73 | 0.73 | 0.698 | 0.762 | 0.677 | 0.73 | 0.73 | 0.689 | 0.746 |
| KNN | 0.58 | 0.713 | 0.516 | 0.613 | 0.581 | 0.75 | 0.813 | 0.719 | 0.719 | 0.75 | 0.667 | 0.714 | 0.619 | 0.667 | 0.667 | 0.632 | 0.679 | 0.571 | 0.644 | 0.632 |
| LR | 0.702 | 0.713 | 0.723 | 0.713 | 0.744 | 0.854 | 0.854 | 0.875 | 0.865 | 0.875 | 0.789 | 0.779 | 0.8 | 0.789 | 0.811 | 0.773 | 0.759 | 0.782 | 0.767 | 0.795 |
- Citation: Zhang L, Wang MY, Wei SY, Su C, Hu SY, Ren XY, Liu YP, Liu C, Wan Y. Predicting gastrointestinal bleeding and audio biomarkers based on machine learning analysis of bowel sounds. World J Gastroenterol 2026; 32(14): 115162
- URL: https://www.wjgnet.com/1007-9327/full/v32/i14/115162.htm
- DOI: https://dx.doi.org/10.3748/wjg.v32.i14.115162