← Search

Ramzi Ben Mhenni

2 accepted papers

2020

A Greedy Sparse Approximation Algorithm Based On L1-Norm Selection Rules

ICASSP 2020accepted

We propose a new greedy sparse approximation algorithm, called SLS for Single L1 Selection, that addresses a least squares optimization problem under a cardinality constraint. The specificity and increased efficiency of SLS originate from the atom selection step, based on exploiting ℓ <sub xmlns:mml…

Cited by 0SourceScholar
2020

Sparse Branch and Bound for Exact Optimization of L0-Norm Penalized Least Squares

ICASSP 2020accepted

We propose a global optimization approach to solve ℓ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> -norm penalized least-squares problems, using a dedicated branch-and-bound methodology. A specific tree search strategy is built, with branching…

Cited by 0SourceScholar