SingularClip: Preventing Spectral Collapse to Maintain Plasticity in Continual and Reinforcement Learning
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Computer Science > Machine Learning
Title:SingularClip: Preventing Spectral Collapse to Maintain Plasticity in Continual and Reinforcement Learning
Abstract:Neural networks trained on nonstationary tasks frequently lose the ability to fit new targets, a phenomenon referred to as loss of plasticity. We identify a novel source of plasticity loss due to the growing anisotropy of weight matrices' singular values during training, and analyze this phenomenon both empirically and theoretically. To mitigate this issue, we introduce SingularClip, a procedure that periodically clips the singular values of all weight matrices. We show that SingularClip performs strongly against baselines across a range of tasks in both continual supervised learning and deep reinforcement learning.
| Subjects: | Machine Learning (cs.LG) |
| Cite as: | arXiv:2608.18319 [cs.LG] |
| (or arXiv:2608.18319v1 [cs.LG] for this version) | |
| https://doi.org/10.48550/arXiv.2608.18319
arXiv-issued DOI via DataCite (pending registration)
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