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Learning dynamics reshape internal representations in neural networks and brains

A new paper published on arXiv details how learning processes reshape power-law anisotropy within the internal representations of neural networks. Researchers analyzed a two-layer linear neural network and found that the local power-law exponent evolves non-monotonically during training, potentially entering up to four distinct asymptotic regimes. This dynamic interaction between input statistics and task structure appears to be a general mechanism for generating power-law internal representations, a phenomenon observed in both artificial language models and biological systems like the mouse cerebral cortex. AI

IMPACT Provides insight into the fundamental mechanisms driving representation learning in AI models.

RANK_REASON The cluster contains a research paper detailing findings on neural network internal representations. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv stat.ML →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Learning dynamics reshape internal representations in neural networks and brains

COVERAGE [1]

  1. arXiv stat.ML TIER_1 English(EN) · Asahi Nakamuta, Jun-nosuke Teramae ·

    Learning reshapes power-law anisotropy in internal representations

    arXiv:2608.15239v1 Announce Type: cross Abstract: Power-law anisotropy in internal representations has been observed across a wide range of biological and artificial neural systems, from state-of-the-art language models to the mouse cerebral cortex. This anisotropy is a key geome…