Hadamard wirtinger flow for sparse phase retrieval

Hadamard wirtinger flow for sparse phase retrieval

We consider the problem of reconstructing an n-dimensional k-sparse signal from a set of noiseless magnitude-only measurements. Formulating the problem as an unregularized empirical risk minimization task, we study the sample complexity performance of gradient descent with Hadamard parametrization,...

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Dades bibliogràfiques
Autors principals:	Wu, F, Rebeschini, P
Format:	Conference item
Idioma:	English
Publicat:	Journal of Machine Learning Research 2021

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