TLadder: QoE-Centric Video Ladder Optimization with Playback Feedback at Billion Scale. - Zhuqi Li; He Liu; Shenglan Huang; Baojin Geng; Jack Chen; Jialin Chen; Liyang Sun; Qianyun Ma; Peizhe Liu; Junjun Zhao; Yiting Liao; Jamie Chen; et al. (SIGCOMM, 2025)