This paper introduces Weighted Low-Rank Matrix Approximation (WLRMA) as a generalization of classical low-rank approximation and matrix completion. It presents a unified framework for developing efficient optimization methods, including accelerated algorithms based on Nesterov momentum and Anderson acceleration, for both rank-constrained and nuclear-norm WLRMA problems. The research also proposes scalable implementations for large sparse data matrices and an effective-rank criterion, demonstrating substantial computational gains and applications in matrix completion and generalized linear low-rank modeling. AI
IMPACT Introduces new computational methods for statistical modeling and matrix completion, potentially improving efficiency in machine learning tasks.
RANK_REASON The item is an academic paper detailing new methods and applications for weighted low-rank matrix approximation. [lever_c_demoted from research: ic=1 ai=1.0]
- Anderson acceleration
- Elena Tuzhilina
- generalized linear low-rank models
- heteroscedastic Gaussian low-rank modeling
- logistic low-rank modeling
- matrix completion
- MovieLens dataset
- Nesterov momentum
- Weighted Low-Rank Matrix Approximation
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