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Progressive Feedforward Collapse of ResNet Training
May 3, 2024, 4:52 a.m. | Sicong Wang, Kuo Gai, Shihua Zhang
cs.LG updates on arXiv.org arxiv.org
Abstract: Neural collapse (NC) is a simple and symmetric phenomenon for deep neural networks (DNNs) at the terminal phase of training, where the last-layer features collapse to their class means and form a simplex equiangular tight frame aligning with the classifier vectors. However, the relationship of the last-layer features to the data and intermediate layers during training remains unexplored. To this end, we characterize the geometry of intermediate layers of ResNet and propose a novel conjecture, …
abstract arxiv class classifier cs.ai cs.lg features form however layer math.oc math.st networks neural collapse neural networks relationship resnet simple stat.th terminal training type vectors
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