  To promote the development of Vision-Language Pre-training (VLP) and
multimodal Large Language Model (LLM) in the Chinese community, we firstly
release the largest public Chinese high-quality video-language dataset named
Youku-mPLUG, which is collected from Youku, a well-known Chinese video-sharing
website, with strict criteria of safety, diversity, and quality. Youku-mPLUG
contains 10 million Chinese video-text pairs filtered from 400 million raw
videos across a wide range of 45 diverse categories for large-scale
pre-training. In addition, to facilitate a comprehensive evaluation of
video-language models, we carefully build the largest human-annotated Chinese
benchmarks covering three popular video-language tasks of cross-modal
retrieval, video captioning, and video category classification. Youku-mPLUG can
enable researchers to conduct more in-depth multimodal research and develop
better applications in the future. Furthermore, we release popular
video-language pre-training models, ALPRO and mPLUG-2, and our proposed
modularized decoder-only model mPLUG-video pre-trained on Youku-mPLUG.
Experiments show that models pre-trained on Youku-mPLUG gain up to 23.1%
improvement in video category classification. Besides, mPLUG-video achieves a
new state-of-the-art result on these benchmarks with 80.5% top-1 accuracy in
video category classification and 68.9 CIDEr score in video captioning,
respectively. Finally, we scale up mPLUG-video based on the frozen Bloomz with
only 1.7% trainable parameters as Chinese multimodal LLM, and demonstrate
impressive instruction and video understanding ability. The zero-shot
instruction understanding experiment indicates that pretraining with
Youku-mPLUG can enhance the ability to comprehend overall and detailed visual
semantics, recognize scene text, and leverage open-domain knowledge.
