Probing Contextual Language Models for Common Ground with Visual Representations

• URL: http://arxiv.org/abs/2005.00619v5
• Date: Tue, 13 Apr 2021 16:02:39 GMT
• Title: Probing Contextual Language Models for Common Ground with Visual Representations
• Authors: Gabriel Ilharco, Rowan Zellers, Ali Farhadi, Hannaneh Hajishirzi
• Abstract summary: We design a probing model that evaluates how effective are text-only representations in distinguishing between matching and non-matching visual representations. Our findings show that language representations alone provide a strong signal for retrieving image patches from the correct object categories. Visually grounded language models slightly outperform text-only language models in instance retrieval, but greatly under-perform humans.
• Score: 76.05769268286038
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The success of large-scale contextual language models has attracted great interest in probing what is encoded in their representations. In this work, we consider a new question: to what extent contextual representations of concrete nouns are aligned with corresponding visual representations? We design a probing model that evaluates how effective are text-only representations in distinguishing between matching and non-matching visual representations. Our findings show that language representations alone provide a strong signal for retrieving image patches from the correct object categories. Moreover, they are effective in retrieving specific instances of image patches; textual context plays an important role in this process. Visually grounded language models slightly outperform text-only language models in instance retrieval, but greatly under-perform humans. We hope our analyses inspire future research in understanding and improving the visual capabilities of language models.

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