Author

Yu-Qi Gu

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Preprint Aug 2026

Mixed Membership Model of Low-rank Matrices with Multimodal Extension

The proposed multimodal extension shares memberships across modalities with modality-specific basis matrices and can restore identifiability when one modality is insufficient, and establishes identifiability under a pure-subject condition.

David P. Snider, Zhongyuan Lyu, Jian Kang et al. · 0 citations

Preprint Sep 2026

From Good Starts to Optimal Inference: Generalized Latent Factor Models with Missingness and Implicit Regularization

A theory is developed that connects a computationally tractable nonconvex procedure directly to statistical inference for nonlinear latent factor models with exponential-family links and partially observed entries with severe missingness, weak low-rank signals, and diminishing local curvature.

Cheng-Zhu Huang, Yu-Qi Gu · 0 citations