Léon Zheng

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20212024

3 citations · 5 across the 6 of their papers we have counts for

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2 papers · 1 filter

Léon Zheng, Elisa Riccietti, Rémi Gribonval

Sparse matrix factorization is the problem of approximating a matrix $Z$ by a product of $J$ sparse factors $X^{(J)} X^{(J - 1)} \dots X^{(1)}$ .…

Léon Zheng, Elisa Riccietti, Rémi Gribonval

Fast transforms correspond to factorizations of the form $Z = X^{(1)} \dots X^{(J)}$ , where each factor $X^{(ℓ)}$ is sparse and possibly st…