RiskProp: Collision-Anchored Self-Supervised Risk Propagation for Early Accident Anticipation. - Yiyang Zou; Tianhao Zhao; Peilun Xiao; Hongyu Jin; Longyu Qi; Yuxuan Li; Liyin Liang; Yifeng Qian; Chunbo Lai; Yutian Lin; Zhihui Li; Yu Wu (CoRR, 2026)