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cs.LG2023★ 1 cited
Convergence of Alternating Gradient Descent for Matrix Factorization
Rachel Ward, Tamara G. Kolda
We consider alternating gradient descent (AGD) with fixed step size applied to the asymmetric matrix factorization objective. We show that, for a rank- matrix $\mathbf{A} \in \m…
cs.LG2011★ 22 cited
COMET: A Recipe for Learning and Using Large Ensembles on Massive Data
Justin D. Basilico, M. Arthur Munson, Tamara G. Kolda +2
COMET is a single-pass MapReduce algorithm for learning on large-scale data. It builds multiple random forest ensembles on distributed blocks of data and merges them into a mega-en…