Papers › Modulate Your Spectrum in Self-Supervised Learning

Modulate Your Spectrum in Self-Supervised Learning

26 May 2023arXiv:2305.16789archive 2025-07-28

Xi Weng, Yunhao Ni, Tengwei Song, Jie Luo, Rao Muhammad Anwer, Salman Khan, Fahad Shahbaz Khan, Lei Huang

Whitening loss offers a theoretical guarantee against feature collapse in self-supervised learning (SSL) with joint embedding architectures. Typically, it involves a hard whitening approach, transforming the embedding and applying loss to the whitened output. In this work, we introduce Spectral Transformation (ST), a framework to modulate the spectrum of embedding and to seek for functions beyond whitening that can avoid dimensional collapse. We show that whitening is a special instance of ST by definition, and our empirical investigations unveil other ST instances capable of preventing collapse. Additionally, we propose a novel ST instance named IterNorm with trace loss (INTL). Theoretical analysis confirms INTL's efficacy in preventing collapse and modulating the spectrum of embedding toward equal-eigenvalues during optimization. Our experiments on ImageNet classification and COCO object detection demonstrate INTL's potential in learning superior representations. The code is available at https://github.com/winci-ai/INTL.

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TL winci-ai/intl/methods/intl.py official repository ran · fixture could not drive it fingerprinted no licence file found · pointer only · fd5a8c5885afe450 · report
Whitening2d winci-ai/intl/methods/intl.py official repository ran no licence file found · pointer only · 9ffcb5f1749f224d · report
Whitening2dIterNorm winci-ai/intl/methods/intl.py official repository ran no licence file found · pointer only · dc7f8d39246774de · report
cal_trade_off winci-ai/intl/methods/intl.py official repository ran · honoured contract no licence file found · pointer only · 38bb36e898fcaec2 · report
get_projection winci-ai/intl/methods/intl.py official repository ran · our draft was wrong no licence file found · pointer only · b2125624341a7fc4 · report
BaseMethod winci-ai/intl/methods/intl.py official repository unverified no licence file found · pointer only · 453362505bc60b1b · report
INTL winci-ai/intl/methods/intl.py official repository unverified no licence file found · pointer only · 072b3cb1850f5fc7 · report
get_backbone winci-ai/intl/methods/intl.py official repository unverified no licence file found · pointer only · 305fc0beef959cfc · report

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Object DetectionSelf-Supervised Learningobject-detection

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