3 citations · 7 across the 21 of their papers we have counts for
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cs.CC2021★ 2 cited
Spurious Valleys, NP-hardness, and Tractability of Sparse Matrix Factorization With Fixed Support
Quoc-Tung Le, Elisa Riccietti, Rémi Gribonval
The problem of approximating a dense matrix by a product of sparse factors is a fundamental problem for many signal processing and machine learning tasks. It can be decomposed into…
cs.LG2021
Identifiability in Two-Layer Sparse Matrix Factorization
Léon Zheng, Elisa Riccietti, Rémi Gribonval
Sparse matrix factorization is the problem of approximating a matrix by a product of sparse factors .…
cs.LG2021★ 1 cited
Efficient Identification of Butterfly Sparse Matrix Factorizations
Léon Zheng, Elisa Riccietti, Rémi Gribonval
Fast transforms correspond to factorizations of the form , where each factor is sparse and possibly st…