REGen: Multimodal Retrieval-Embedded Generation for Long-to-Short Video Editing - Xu, Weihan; Ma, Yimeng; Huang, Jingyue; Li, Yang; Ma, Wenye; Berg-Kirkpatrick, Taylor; McAuley, Julian; Liang, Paul; Dong, Hao-Wen (Advances in Neural Information Processing Systems, 2025)