Research Article

An Explainable Stacked Ensemble Model for Static Route-Free Estimation of Time of Arrival

Figure 6

Explanations via SHAP per feature, sample, and scenario for the first-level models; each subfigure refers to one scenario: (a) for SC1, (b) for SC2, (c) for SC3, and (d) for SC4; the ten trips with an expected lower influence are marked with lighter triangles—the ones with an expected higher influence with fewer light triangles.
(a)
(b)
(c)
(d)