publications | Hamza Cherkaoui

2026

Do Heavy Tails Help Diffusion? On the Subtle Trade-off Between Initialization and Training

H. Cherkaoui, H. Halconruy, and A. Ocello

arXiv preprint, 2026

@article{Cherkaoui2026a,
  author = {Cherkaoui, H. and Halconruy, H. and Ocello, A.},
  title = {Do Heavy Tails Help Diffusion? On the Subtle Trade-off Between Initialization and Training},
  journal = {arXiv preprint},
  year = {2026},
}

When to Transfer: Adaptive Source Selection for Positive Transfer in Linear Models

H. Cherkaoui, H. Halconruy, and Y. Petetin

arXiv preprint, 2026

[paper] [bibtex]

@article{Cherkaoui2026b,
  author = {Cherkaoui, H. and Halconruy, H. and Petetin, Y.},
  title = {When to Transfer: Adaptive Source Selection for Positive Transfer in Linear Models},
  journal = {arXiv preprint},
  year = {2026},
}

High-Dimensional Analysis of Bootstrap Ensemble Classifiers

Malik Tiomoko, Hamza Cherkaoui, Mohamed El Amine Seddik, and 3 more authors

19th International Conference on Artificial Intelligence and Statistics (AISTATS), 2026

[paper] [code] [bibtex]

@article{cherkaoui2026c,
  title = {High-Dimensional Analysis of Bootstrap Ensemble Classifiers},
  author = {Tiomoko, Malik and Cherkaoui, Hamza and Seddik, Mohamed El Amine and Louart, Cosme and Schnoor, Ekkehard and Kégl, Balázs},
  journal = {19th International Conference on Artificial Intelligence and Statistics ({AISTATS})},
  year = {2026},
}

2025

Adaptive Sample Sharing for Multi Agent Linear Bandits

H. Cherkaoui, M. Barlier, and I. Colin

In Proceedings of the 42nd International Conference on Machine Learning (ICML), 2025

[paper] [code] [bibtex]

@inproceedings{Cherkaoui2025a,
  author = {Cherkaoui, H. and Barlier, M. and Colin, I.},
  title = {Adaptive Sample Sharing for Multi Agent Linear Bandits},
  booktitle = {Proceedings of the 42nd International Conference on Machine Learning ({ICML})},
  year = {2025},
  address = {Vancouver Convention Center},
}

2023

Price of Safety in Linear Best Arm Identification

X. Shang, I. Colin, M. Barlier, and 1 more author

arXiv preprint, 2023

[paper] [bibtex]

@article{Cherkaoui2023b,
  author = {Shang, X. and Colin, I. and Barlier, M. and Cherkaoui, H.},
  title = {Price of Safety in Linear Best Arm Identification},
  journal = {arXiv preprint},
  year = {2023},
}

2021

Multivariate semi-blind deconvolution of fMRI time series

H. Cherkaoui, T. Moreau, A. Halimi, and 2 more authors

NeuroImage, 2021

[paper] [code] [bibtex]

@article{Cherkaoui2021a,
  author = {Cherkaoui, H. and Moreau, T. and Halimi, A. and Leroy, C. and Ciuciu, P.},
  title = {Multivariate semi-blind deconvolution of {fMRI} time series},
  journal = {NeuroImage},
  volume = {241},
  year = {2021},
  doi = {10.1016/j.neuroimage.2021.118418},
}

Characterization of the haemodynamic response function after a buprenorphine challenge study in Human healthy volunteer

H. Cherkaoui, T. Moreau, P. Ciuciu, and 4 more authors

In Organization for Human Brain Mapping, 2021

[bibtex]

@inproceedings{Cherkaoui2021b,
  author = {Cherkaoui, H. and Moreau, T. and Ciuciu, P. and Fernandez, B. and Bottlaender, M. and Tournier, N. and Leroy, C.},
  title = {Characterization of the haemodynamic response function after a buprenorphine challenge study in Human healthy volunteer},
  booktitle = {Organization for Human Brain Mapping},
  year = {2021},
  address = {Virtual-only Conference},
}

2020

Learning to solve TV regularised problems with unrolled algorithms

H. Cherkaoui, J. Sulam, and T. Moreau

In 34th Conference and Workshop on Neural Information Processing Systems (NeurIPS), 2020

[paper] [code] [bibtex]

@inproceedings{Cherkaoui20a,
  author = {Cherkaoui, H. and Sulam, J. and Moreau, T.},
  title = {Learning to solve TV regularised problems with unrolled algorithms},
  booktitle = {34th Conference and Workshop on Neural Information Processing Systems ({NeurIPS})},
  year = {2020},
  address = {Virtual-only Conference},
}

2019

Sparsity-based blind deconvolution of neural activation signal in fMRI

H. Cherkaoui, T. Moreau, A. Halimi, and 1 more author

In 44th International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2019

[paper] [bibtex]

@inproceedings{Cherkaoui19a,
  author = {Cherkaoui, H. and Moreau, T. and Halimi, A. and Ciuciu, P.},
  title = {Sparsity-based blind deconvolution of neural activation signal in {fMRI}},
  booktitle = {44th International Conference on Acoustics, Speech and Signal Processing {(ICASSP)}},
  year = {2019},
  pages = {1323--1327},
  address = {England},
  doi = {10.1109/ICASSP.2019.8683358},
}

fMRI BOLD signal decomposition using a multivariate low-rank model

H. Cherkaoui, T. Moreau, A. Halimi, and 1 more author

In 27th European Signal Processing Conference (EUSIPCO), 2019

[paper] [bibtex]

@inproceedings{Cherkaoui19b,
  author = {Cherkaoui, H. and Moreau, T. and Halimi, A. and Ciuciu, P.},
  title = {{fMRI BOLD} signal decomposition using a multivariate low-rank model},
  booktitle = {27th European Signal Processing Conference ({EUSIPCO})},
  year = {2019},
  pages = {1--5},
  address = {Spain},
  doi = {10.23919/EUSIPCO.2019.8902660},
}

2018

Analysis vs synthesis-based regularization for combined compressed sensing and parallel MRI reconstruction at 7 tesla

H. Cherkaoui, L. Gueddari, C. Lazarus, and 6 more authors

In 26th European Signal Processing Conference (EUSIPCO), 2018

[paper] [bibtex]

@inproceedings{Cherkaoui18a,
  author = {Cherkaoui, H. and Gueddari, L. and Lazarus, C. and Grigis, A. and Poupon, F. and Vignaud, A. and Farrens, S. and Starck, J.-L.. and Ciuciu, P.},
  title = {Analysis vs synthesis-based regularization for combined compressed sensing and parallel {MRI} reconstruction at 7 tesla},
  booktitle = {26th European Signal Processing Conference ({EUSIPCO})},
  year = {2018},
  pages = {36--40},
  address = {Italy},
  doi = {10.23919/EUSIPCO.2018.8553476},
}