Revisiting Gradient Normalization and Clipping for Nonconvex SGD under Heavy-Tailed Noise: Necessity, Sufficiency, and Acceleration

arXiv — stat.MLThursday, November 20, 2025 at 5:00:00 AM
  • The study explores the necessity and sufficiency of gradient normalization and clipping in Stochastic Gradient Descent (SGD) under heavy
  • This development is crucial as it challenges long
  • The findings resonate with ongoing discussions in the field regarding optimization techniques, particularly in the context of heavy
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Algorithmic Stability in Infinite Dimensions: Characterizing Unconditional Convergence in Banach Spaces
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A recent study has provided a comprehensive characterization of unconditional convergence in Banach spaces, highlighting the distinction between conditional, unconditional, and absolute convergence in infinite-dimensional spaces. This work builds on the Dvoretzky-Rogers theorem and presents seven equivalent conditions for unconditional convergence, which are crucial for understanding algorithmic stability in computational algorithms.

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