July 15, 2014 at 11:28 am

Mohlenkamp Presents at Society for Industrial and Applied Mathematics

Dr. Martin Mohlenkamp, Associate Professor of Mathematics, presented “Dynamical Systems Analysis of Swamps in ALS” at a mini-symposium at the 2014 Society for Industrial and Applied Mathematics annual meeting on July 7.

Martin MohlenkampThe symposium was on Tensor Analysis, Computation and Application.

Abstract: The Alternating Least Squares (ALS) algorithm for approximating a tensor by a low-rank tensor is prone to periods of very slow convergence, known as swamps. Although the existence of swamps is well-known and various fixes have been proposed, the mechanisms that cause swamps are mysterious. I will discuss progress on analyzing and understanding swamps using tools from Dynamical Systems.

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