Weakly Supervised Vision-and-Language Pre-training with Relative Representations

Chi Chen; Peng Li; Maosong Sun; Yang Liu

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arXiv · 2305.15483

Weakly Supervised Vision-and-Language Pre-training with Relative Representations

Chi Chen·Peng Li·Maosong Sun·Yang Liu

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Abstract

Weakly supervised vision-and-language pre-training (WVLP), which learns cross-modal representations with limited cross-modal supervision, has been shown to effectively reduce the data cost of pre-training while maintaining decent performance on downstream tasks. However, current WVLP methods use only local descriptions of images, i.e., object tags, as cross-modal anchors to construct weakly-aligned image-text pairs for pre-training. This affects the data quality and thus the effectiveness of pre-training. In this paper, we propose to directly take a small number of aligned image-text pairs as anchors, and represent each unaligned image and text by its similarities to these anchors, i.e., relative representations. We build a WVLP framework based on the relative representations, namely RELIT, which collects high-quality weakly-aligned image-text pairs from large-scale image-only and text-only data for pre-training through relative representation-based retrieval and generation. Experiments on four downstream tasks show that RELIT achieves new state-of-the-art results under the weakly supervised setting.

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BibTeX RIS

Chi Chen, Peng Li, Maosong Sun, Yang Liu. 2023-05-24. Weakly Supervised Vision-and-Language Pre-training with Relative Representations. https://arxiv.org/abs/2305.15483

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