Global optimization for sparse solution of least squares problems.

Autor: Ben Mhenni, Ramzi¹ (AUTHOR), Bourguignon, Sébastien¹ (AUTHOR) Sebastien.Bourguignon@ec-nantes.fr, Ninin, Jordan² (AUTHOR)

Publikováno v: Optimization Methods & Software. Oct2022, Vol. 37 Issue 5, p1740-1769. 30p.

Mixed-Integer Programming Methods for sparse optimization in signal processing

Autor: Ben Mhenni, Ramzi

Publikováno v: Traitement du signal et de l'image [eess.SP]. École Centrale de Nantes (ECN), 2020. Français

Sparse approximation aims to fit a linear model in a least-squares sense, with a small number of non-zero components (the L0 ``norm''). Due to its combinatorial nature, it is often addressed by suboptimal methods. It was recently shown, however, that

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______212::53f5e532d74ed813928eb4c432be09c0
https://hal.archives-ouvertes.fr/tel-02733897

Global optimization of L0-norm-based sparse approximation criteria with a branch-and-bound algorithm

Autor: Ben Mhenni, Ramzi, Bourguignon, Sébastien, Ninin, Jordan

Publikováno v: SPARS, Signal Processing with Adaptive Sparse Structured Representations
SPARS, Signal Processing with Adaptive Sparse Structured Representations, 2019, Toulouse, France

International audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::6872f7833b58f9723ed0b4753320ac6b
https://hal.archives-ouvertes.fr/hal-02583286

Méthodes exactes de démélange spectral en norme L0 et contraintes de parcimonie structurée à l'aide de MIP

Autor: Ben Mhenni, Ramzi, Bourguignon, Sébastien, Ninin, Jordan, Schmidt, Frédéric

Publikováno v: 19ème congrès de la ROADEF (2018)
19ème congrès de la ROADEF (2018), Feb 2018, Lorient, France

International audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::8304208536a510635694ba168ec0f54f
https://hal.archives-ouvertes.fr/hal-02051460/document

La classification des gènes basée sur les CSP pondérés

Autor: Ben Mhenni, Ramzi, MHAMDI, Amel, Naanaa, Wady

Publikováno v: Actes des Douzièmes Journées Francophones de Programmation par Contraintes
JFPC 2016 Douzièmes Journées Francophones de Programmation par Contraintes
JFPC 2016 Douzièmes Journées Francophones de Programmation par Contraintes, Jan 2016, Montpellier, France

The classification of objects relative to a similarity or a given distance is a central problem in computational biology. Several well-known classification algorithms, such as partitioning problem of similar genes, are based on the transformation of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::33a5ea86af2af2cee984851e9de7d6a9
https://hal.archives-ouvertes.fr/hal-02051483