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GradMax: Growing Neural Networks using Gradient Information

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arxiv 2201.05125 v3 pith:YUYHDA4M submitted 2022-01-13 cs.LG cs.CV

classification cs.LGcs.CV
keywords architecturecostlygradientgradmaxgrowingmaximizingnetworksneural
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The architecture and the parameters of neural networks are often optimized independently, which requires costly retraining of the parameters whenever the architecture is modified. In this work we instead focus on growing the architecture without requiring costly retraining. We present a method that adds new neurons during training without impacting what is already learned, while improving the training dynamics. We achieve the latter by maximizing the gradients of the new weights and find the optimal initialization efficiently by means of the singular value decomposition (SVD). We call this technique Gradient Maximizing Growth (GradMax) and demonstrate its effectiveness in variety of vision tasks and architectures.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. An optimal control approach for neural network architecture adaptation with a posteriori error estimation

    cs.LG 2026-07 conditional novelty 7.0 of 10

    The paper derives a posteriori error estimates for neural network depth adaptation by formulating training as an optimal control problem and using dual weighted residuals to insert layers where error is highest.

  2. SPARKLING: Balancing Signal Preservation and Symmetry Breaking for Width-Progressive Learning

    cs.LG 2026-02 conditional novelty 6.0 of 10

    A width-progressive training method (RMS-preserving rescaling plus asymmetric optimizer-state reset and LR rewarmup) enables mid-training 2x width expansion with up to 35% compute savings over training from scratch.

  3. Evolutionary Developmental Biology Can Serve as the Conceptual Foundation for a New Design Paradigm in Artificial Intelligence

    cs.AI 2025-06 conditional novelty 6.0 of 10

    The paper proposes regulatory connections, weak linkage, and component-level variation-selection, drawn from evo-devo, as the unifying conceptual foundation for a new AI design paradigm.

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