Zoom In, Reason Out: Efficient Far-field Anomaly Detection in Expressway Surveillance Videos via Focused VLM Reasoning Guided by Bayesian Inference. - Xiaowei Mao; Bowen Sui; Weijie Zhang; Yawen Yang; Shengnan Guo 001; Shilong Zhao; Jiaqi Lin; Tingrui Wu; Youfang Lin; Huaiyu Wa (CoRR, 2026)