SIGNALAI·Jun 16, 2026, 4:00 AMSignal55Medium term

When to use what Schatten-$p$ norm in deep learning?

Source: arXiv cs.LG

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When to use what Schatten-$p$ norm in deep learning?

arXiv:2606.15268v1 Announce Type: new Abstract: Schatten-$\infty$ based optimizers such as Muon have shown promising empirical performance, but there remains seemingly conflicting observations regarding whether they are beneficial. We resolve this conflict by showing that the conclusion is regime dependent. Even when the objective is smooth in the Schatten-$\infty$ geometry, smaller Schatten-$p$ geometries can be optimal, specifically in the low-dimensional regime, which we show includes Chinchilla scaling. This conclusion follows from a new noise-robust acceleration result for the SODA framew

Why this matters
Why now

This paper offers a new theoretical framework for understanding the optimal choice of Schatten-p norms in deep learning optimization, driven by recent empirical observations of techniques like Muon.

Why it’s important

Understanding the fundamental mathematical properties of optimization algorithms directly impacts the efficiency, performance, and scaling laws of future AI models.

What changes

This research refines the theoretical understanding of deep learning optimizers, suggesting that optimal techniques are regime-dependent, which could lead to more targeted and efficient model development.

Winners
  • · AI researchers
  • · Deep learning practitioners
  • · AI model developers
Losers
  • · Inefficient AI optimization techniques
  • · Companies relying on sub-optimal deep learning frameworks
Second-order effects
Direct

Improved theoretical understanding of deep learning's mathematical foundations.

Second

Development of more efficient and context-aware AI optimization algorithms.

Third

Acceleration of AI model training and potentially reduced computational costs for specific tasks, impacting the compute supply chain.

Editorial confidence: 85 / 100 · Structural impact: 40 / 100
Original report

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