Knee-xRAI: An Explainable AI Framework for Automatic Kellgren-Lawrence Grading of Knee Osteoarthritis. - Ahmad Azmul Asmar Irfan; Nur Ahmad Khatim; Alfan Alfian Irfan; Achmad Zaki; Erike A. Suwarsono; Mansur M. Arief (CoRR, 2026)