Tag: dependence
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Canonical Tail Dependence for Soft Extremal Clustering of Multichannel Brain Signals
Canonical Tail Dependence for Soft Extremal Clustering of Multichannel Brain Signals arXiv:2512.06435v1 Announce Type: new Abstract: We develop a novel characterization of extremal dependence between two cortical regions of the brain when its signals display extremely large amplitudes. We show that connectivity in the tails of the distribution reveals unique features of extreme events (e.g.,…
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A Sharp KL-Convergence Analysis for Diffusion Models under Minimal Assumptions
A Sharp KL-Convergence Analysis for Diffusion Models under Minimal Assumptions arXiv:2508.16306v1 Announce Type: new Abstract: Diffusion-based generative models have emerged as highly effective methods for synthesizing high-quality samples. Recent works have focused on analyzing the convergence of their generation process with minimal assumptions, either through reverse SDEs or Probability Flow ODEs. The best known guarantees,…