Search Results - "Mhenni, Ramzi Ben"

Global optimization for sparse solution of least squares problems by Ben Mhenni, Ramzi, Bourguignon, Sébastien, Ninin, Jordan

“…Finding solutions to least-squares problems with low cardinality has found many applications, including portfolio optimization, subset selection in statistics,…”
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A Greedy Sparse Approximation Algorithm Based On L1-Norm Selection Rules by Mhenni, Ramzi Ben, Bourguignon, Sebastien, Idier, Jerome

“…We propose a new greedy sparse approximation algorithm, called SLS for Single L1 Selection, that addresses a least squares optimization problem under a…”
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Sparse Branch and Bound for Exact Optimization of L0-Norm Penalized Least Squares by Mhenni, Ramzi Ben, Bourguignon, Sebastien, Mongeau, Marcel, Ninin, Jordan, Carfantan, Herve

“…We propose a global optimization approach to solve ℓ 0 -norm penalized least-squares problems, using a dedicated branch-and-bound methodology. A specific tree…”
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Spectral Unmixing with Sparsity and Structuring Constraints by Mhenni, Ramzi Ben, Bourguignon, Sebastien, Ninin, Jordan, Schmidt, Frederic

“…This paper addresses the linear spectral unmixing problem, by incorporating different constraints that may be of interest in order to cope with spectral…”
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SLS (Single $\ell_1$ Selection): a new greedy algorithm with an $\ell_1$-norm selection rule by Mhenni, Ramzi Ben, Bourguignon, Sébastien, Idier, Jérôme

“…In this paper, we propose a new greedy algorithm for sparse approximation, called SLS for Single L_1 Selection. SLS essentially consists of a greedy forward…”
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