arXiv Machine Learning
Aug 19

Looking Beyond the Scale: Do Surgical Skill Models Learn Transferable Representations Across Assessment Rubrics?

This study investigates whether vision‑based models for surgical skill assessment learn representations that transfer across different scoring rubrics (GOALS and OSATS) using the LASANA and JIGSAWS datasets. By evaluating end‑to‑end training, Adaptive Sharpness‑Aware Minimization, and self‑supervised/contrastive pretraining, the authors find that models pretrained on JIGSAWS can transfer reasonably well to LASANA, but transfer to JIGSAWS fails, likely due to annotation inconsistencies. Control experiments with a Kinetics‑pretrained backbone show that task‑specific heads carry most of the skill prediction load, while the backbone provides general spatiotemporal features.

By Hanna Hoffmann, Felix von Bechtolsheim, Stefanie Speidel, Rebecca Hisey
arXiv AI
Jul 13

ALICE: Learning a General-Purpose Pathology Foundation Model from Vision, Vision-Language, and Slide-Level Experts

arXiv:2607. 09526v1 Announce Type: cross Abstract: Foundation models are reshaping computational pathology, yet their capabilities remain shaped by pretraining objectives, data sources, and spatial scales, fragmenting complementary expertise across separate backbones.

By Jiawen Li, Tian Guan, Huijuan Shi, Xitong Ling, Mingxi Fu, Anjia Han, Chao He, Yonghong He