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Maryam Fazel

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#machine learning Jun 2025

Global Convergence of Gradient EM for Over-Parameterized Gaussian Mixtures

This is the first global convergence and recovery result for EM or Gradient EM beyond the special case of m=2, and it is proved that with only mild over-parameterization, randomly initialized gradient EM converges to the ground truth with polynomial time and samples.

Mo Zhou, Weihang Xu, Maryam Fazel et al. · 2 citations · ⚡1