Divide-and-Conquer Matrix Factorization

no code implementations • NeurIPS 2011 • Lester W. Mackey, Michael. I. Jordan, Ameet Talwalkar

This work introduces Divide-Factor-Combine (DFC), a parallel divide-and-conquer framework for noisy matrix factorization.

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Deflation Methods for Sparse PCA

no code implementations • NeurIPS 2008 • Lester W. Mackey

In analogy to the PCA setting, the sparse PCA problem is often solved by iteratively alternating between two subtasks: cardinality-constrained rank-one variance maximization and matrix deflation.