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arXiv · 2211.13108

Integral Continual Learning Along the Tangent Vector Field of Tasks

Tian Yu Liu·Aditya Golatkar·Stefano Soatto·Alessandro Achille
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Abstract

We propose a lightweight continual learning method which incorporates information from specialized datasets incrementally, by integrating it along the vector field of "generalist" models. The tangent plane to the specialist model acts as a generalist guide and avoids the kind of over-fitting that leads to catastrophic forgetting, while exploiting the convexity of the optimization landscape in the tangent plane. It maintains a small fixed-size memory buffer, as low as 0.4% of the source datasets, which is updated by simple resampling. Our method achieves strong performance across various buffer sizes for different datasets. Specifically, in the class-incremental setting we outperform the existing methods that do not require distillation by an average of 18.77% and 28.48%, for Seq-CIFAR-10 and Seq-TinyImageNet respectively. Our method can easily be used in conjunction with existing replay-based continual learning methods. When memory buffer constraints are relaxed to allow storage of metadata such as logits, we attain an error reduction of 17.84% towards the paragon performance on Seq-CIFAR-10.

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Tian Yu Liu, Aditya Golatkar, Stefano Soatto, Alessandro Achille. 2022-11-23. Integral Continual Learning Along the Tangent Vector Field of Tasks. https://arxiv.org/abs/2211.13108

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