VLMo: Unified Vision-Language Pre-Training with
Mixture-of-Modality-Experts
- URL: http://arxiv.org/abs/2111.02358v1
- Date: Wed, 3 Nov 2021 17:20:36 GMT
- Title: VLMo: Unified Vision-Language Pre-Training with
Mixture-of-Modality-Experts
- Authors: Wenhui Wang, Hangbo Bao, Li Dong, Furu Wei
- Abstract summary: We present a unified Vision-Language pretrained Model (VLMo) that jointly learns a dual encoder and a fusion encoder with a modular Transformer network.
Because of the modeling flexibility of MoME, pretrained VLMo can be fine-tuned as a fusion encoder for vision-language classification tasks.
We propose a stagewise pre-training strategy, which effectively leverages large-scale image-only and text-only data besides image-text pairs.
- Score: 46.55920956687346
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We present a unified Vision-Language pretrained Model (VLMo) that jointly
learns a dual encoder and a fusion encoder with a modular Transformer network.
Specifically, we introduce Mixture-of-Modality-Experts (MoME) Transformer,
where each block contains a pool of modality-specific experts and a shared
self-attention layer. Because of the modeling flexibility of MoME, pretrained
VLMo can be fine-tuned as a fusion encoder for vision-language classification
tasks, or used as a dual encoder for efficient image-text retrieval. Moreover,
we propose a stagewise pre-training strategy, which effectively leverages
large-scale image-only and text-only data besides image-text pairs.
Experimental results show that VLMo achieves state-of-the-art results on
various vision-language tasks, including VQA and NLVR2. The code and pretrained
models are available at https://aka.ms/vlmo.
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