mlsanityData to 14 Oct 2026

Why Do Self-Supervised Models Transfer? Investigating the Impact of Invariance on Downstream Tasks

arXiv 2111.11398 ↗First posted 22 Nov 2021cs.CVcited by 15

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Abstract (arXiv)

Self-supervised learning is a powerful paradigm for representation learning on unlabelled images. A wealth of effective new methods based on instance matching rely on data-augmentation to drive learning, and these have reached a rough agreement on an augmentation scheme that optimises popular recognition benchmarks. However, there is strong reason to suspect that different tasks in computer vision require features to encode different (in)variances, and therefore likely require different augmentation strategies. In this paper, we measure the invariances learned by contrastive methods and confirm that they do learn invariance to the augmentations used and further show that this invariance largely transfers to related real-world changes in pose and lighting. We show that learned invariances strongly affect downstream task performance and confirm that different downstream tasks benefit from polar opposite (in)variances, leading to performance loss when the standard augmentation strategy is used. Finally, we demonstrate that a simple fusion of representations with complementary invariances ensures wide transferability to all the diverse downstream tasks considered.

Key facts. Cited by 15 papers in the map (data through 14 Oct 2026). Builds on 31 of its 51 references that are in the map. First posted on arXiv 22 Nov 2021.

Builds on

31 of 51 references.

References · 31

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19 more
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Cited by year (2026 to 14 Oct)

Citing papers per year: 2022: 6; 2023: 7; 2024: 0; 2025: 0; 2026: 2.

15 papers.

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