Description
Speaker: Tim Seynnaeve, Institute of Mathematics of Polish Academy of Sciences (IMPAN, Warsaw, Poland) - https://timseynnaeve.github.io/
Title: Chisel-based tensor decomposition
Abstract: Chiseling is a general algorithm for tensor sparsification recently introduced by Brooksbank, Kassabov and Wilson. It computes a change of basis that give a given tensor a sparse block structure. In ongoing works with Daniele Taufer, David Thorsteinsson and Nick Vannieuwenhoven, we leverage and extend the chiseling algorithm to compute additive tensor decompositions. It applies to a variety of elementary tensors and their corresponding decompositions, such as tensor rank, subspace, Chow, Grassmann, and Waring decompositions.
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