The feature contribution map for the classification of different dark matter models in the X-ray channel approach. From left to right, the feature contribution maps obtained for the CDM, SIDM0.1, and SIDM1.0 models are shown. The color scale bar on the right indicates the normalized h_i values for each point in the original distribution. Overlaid contours in each panel emphasize the spatial pattern of h_i. Notably, both the intensity regions and overall morphology exhibit significant variations as the self-interaction strength changes.