2022

All in One: Exploring Unified Video-Language Pre-training

Wang, Alex Jinpeng, Ge, Yixiao, Yan, Rui et al.

Understand

Mainstream Video-Language Pre-training models \cite{actbert,clipbert,violet} consist of three parts, a video encoder, a text encoder, and a video-text fusion Transformer.

  • They pursue better performance via utilizing heavier unimodal encoders or multimodal fusion Transformers, resulting in increased parameters with lower efficiency in downstream tasks.
  • In this work, we for the first time introduce an end-to-end video-language model, namely \textit{all-in-one Transformer}, that embeds raw video and textual signals into joint representations using a unified backbone architecture.
  • We argue that the unique temporal information of video data turns out to be a key barrier hindering the design of a modality-agnostic Transformer.

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