LFS: Learnable Frame Selector for Event-Aware and Temporally Diverse Video Captioning. - Lianying Chao; Linfeng Yin; Peiyu Ren; Yifan Jiang; Qiaoyu Ren; Dingcheng Shan; Jing-Cheng Pang; Sijie Wu; Xubin Li; Kai Zhang (CoRR, 2026)