SIGNALAI·Jun 29, 2026, 4:00 AMSignal60Medium term

How Width and Data Shape Generalization Scaling Laws in Quadratic Neural Networks

Source: arXiv cs.LG

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How Width and Data Shape Generalization Scaling Laws in Quadratic Neural Networks

arXiv:2606.28242v1 Announce Type: new Abstract: Understanding how performance scales jointly with model size and data is a central problem in modern machine learning. Existing theoretical works on scaling laws typically describe generalization as a function of data or compute, often in fixed-feature or infinite-width regimes and for online SGD. Here, we instead study how generalization scales with the number of trainable parameters and the number of samples in a feature-learning model. We analyze $\ell_2$-regularized empirical test error minimization in a quadratic two-layer network in a finit

Why this matters
Why now

This research provides new theoretical insights into AI scaling laws, a critical area given the rapid advancements and increasing resource demands of large models.

Why it’s important

Understanding how AI performance scales with data and model size is fundamental for strategic planning in AI development, resource allocation, and competitive advantage.

What changes

This research contributes to a more nuanced theoretical understanding of AI generalization, moving beyond fixed-feature or infinite-width assumptions.

Winners
  • · AI researchers
  • · Hyperscalers
  • · Organizations developing large AI models
Losers
  • · AI development relying solely on empirical trial-and-error
Second-order effects
Direct

Improved theoretical models for predicting AI model performance and resource requirements.

Second

More efficient allocation of compute and data resources in training large AI models, potentially reducing development costs.

Third

Accelerated development of more powerful and generalizable AI systems, further compressing innovation cycles.

Editorial confidence: 85 / 100 · Structural impact: 45 / 100
Original report

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