Towards Robust Skin Lesion Classification: Lesion Segmentation, Mole Collision Simulation and Hierarchical Learning. - Hang Nguyen; Paul Fricker; Marianne Defresne; Frederik Pahde; Serena Bonin; Jonathan Wolfe; Eros Azzalini; Iris Zalaudek; Skye Tanzmann; Zung Nguyen (CMMCA@MICCAI, 2025)