Weihan Xu Yimeng Ma Jingyue Huang Yang Li Wenye Ma Taylor Berg-Kirkpatrick Julian J. McAuley Paul Pu Liang Hao-Wen Dong REGen: Multimodal Retrieval-Embedded Generation for Long-to-Short Video Editing. 2025 May abs/2505.18880 CoRR https://doi.org/10.48550/arXiv.2505.18880 db/journals/corr/corr2505.html#abs-2505-18880 streams/journals/corr