Computer Science > Computer Vision and Pattern Recognition
arXiv:2401.05224 (cs)
[Submitted on 10 Jan 2024 (v1), last revised 22 Mar 2024 (this version, v2)]
Title:Do Vision and Language Encoders Represent the World Similarly?
Authors:Mayug Maniparambil,Raiymbek Akshulakov,Yasser Abdelaziz Dahou Djilali,Sanath Narayan,Mohamed El Amine Seddik,Karttikeya Mangalam,Noel E. O'Connor
View a PDF of the paper titled Do Vision and Language Encoders Represent the World Similarly?, by Mayug Maniparambil and 6 other authors
View PDFHTML (experimental)Abstract:Aligned text-image encoders such as CLIP have become the de facto model for vision-language tasks. Furthermore, modality-specific encoders achieve impressive performances in their respective domains. This raises a central question: does an alignment exist between uni-modal vision and language encoders since they fundamentally represent the same physical world? Analyzing the latent spaces structure of vision and language models on image-caption benchmarks using the Centered Kernel Alignment (CKA), we find that the representation spaces of unaligned and aligned encoders are semantically similar. In the absence of statistical similarity in aligned encoders like CLIP, we show that a possible matching of unaligned encoders exists without any training. We frame this as a seeded graph-matching problem exploiting the semantic similarity between graphs and propose two methods - a Fast Quadratic Assignment Problem optimization, and a novel localized CKA metric-based matching/retrieval. We demonstrate the effectiveness of this on several downstream tasks including cross-lingual, cross-domain caption matching and image classification. Code available atthis http URL.
| Comments: | Accepted CVPR 2024 |
| Subjects: | Computer Vision and Pattern Recognition (cs.CV); Artificial Intelligence (cs.AI); Computation and Language (cs.CL); Machine Learning (cs.LG) |
| Cite as: | arXiv:2401.05224 [cs.CV] |
| (orarXiv:2401.05224v2 [cs.CV] for this version) | |
| https://doi.org/10.48550/arXiv.2401.05224 arXiv-issued DOI via DataCite |
Submission history
From: Mayug Maniparambil [view email][v1] Wed, 10 Jan 2024 15:51:39 UTC (31,647 KB)
[v2] Fri, 22 Mar 2024 18:39:41 UTC (32,634 KB)
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View a PDF of the paper titled Do Vision and Language Encoders Represent the World Similarly?, by Mayug Maniparambil and 6 other authors
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