Differential diagnosis of Crohn’s disease and intestinal tuberculosis based on ATR-FTIR spectroscopy combined with machine learning

Figure 10 Schematic diagram of XGBoost used to identify intestinal tuberculosis and Crohn’s disease. A: Original spectra; B: Derivative spectra; C: Feature extraction; D: Modeling analysis; E: Classification results. CD: Crohn’s disease; ITB: Intestinal tuberculosis; PCA: principal component analysis; ICA: Independent component analysis.