# Sébastien GADAT

(Sebastien GADAT)

## Personal Details

First Name: | Sebastien |

Middle Name: | |

Last Name: | Gadat |

Suffix: | |

RePEc Short-ID: | pga846 |

| |

http://perso.math.univ-toulouse.fr/gadat/ | |

## Affiliation

### Groupe de Recherche en Économie Mathématique et Quantitative (GREMAQ)

Toulouse School of Economics (TSE)

Toulouse, Francehttp://www-gremaq.univ-tlse1.fr/

RePEc:edi:getlsfr (more details at EDIRC)

## Research output

Jump to: Working papers Articles### Working papers

- Gadat, Sébastien & Corre, Lola & Doury, Antoine & Ribes, Aurélien & Somot, Samuel, 2021.
"
**Regional Climate Model Emulator Based on Deep Learning: Concept and First Evaluation of a Novel Hybrid Downscaling Approach**," TSE Working Papers 21-1233, Toulouse School of Economics (TSE). - Fanny Lafouresse & Romain Jugele & Sabina Müller & Marine Doineau & Valérie Duplan-Eche & Eric Espinosa & Marie-Pierre Puissegur & Sébastien Gadat & Salvatore Valitutti, 2021.
"
**Stochastic asymmetric repartition of lytic machinery in dividing CD8+ T cells generates heterogeneous killing behavior**," Post-Print hal-03369410, HAL. - Gadat, Sébastien & Panloup, Fabien & Pellegrini, C., 2020.
"
**On the cost of Bayesian posterior mean strategy for log-concave models**," TSE Working Papers 20-1155, Toulouse School of Economics (TSE), revised Feb 2022. - Gadat, Sébastien & Costa, Manon, 2020.
"
**Non asymptotic controls on a stochastic algorithm for superquantile approximation**," TSE Working Papers 20-1149, Toulouse School of Economics (TSE). - Costa, Manon & Gadat, Sébastien & Bercu, Bernard, 2020.
"
**Stochastic approximation algorithms for superquantiles estimation**," TSE Working Papers 20-1142, Toulouse School of Economics (TSE). - De Castro, Y. & Gadat, Sébastien & Marteau, Clément & Maugis, Cathy, 2019.
"
**SuperMix: Sparse Regularization for Mixture**," TSE Working Papers 19-1040, Toulouse School of Economics (TSE), revised Sep 2020. - Gadat, Sébastien & Gerchinovitz, Sebastien & Marteau, Clément, 2018.
"
**Optimal functional supervised classification with separation condition**," TSE Working Papers 18-904, Toulouse School of Economics (TSE). - Gadat, Sébastien & Panloup, Fabien, 2017.
"
**Optimal non-asymptotic analysis of the Ruppert-Polyak averaging stochastic algorithm**," TSE Working Papers 17-856, Toulouse School of Economics (TSE), revised Feb 2022. - Gadat, Sébastien & Panloup, Fabien & Saadane, Sofiane, 2016.
"
**Stochastic Heavy Ball**," TSE Working Papers 16-712, Toulouse School of Economics (TSE). - Gadat, Sébastien & Gavra, Ioana & Risser, Laurent, 2016.
"
**How to calculate the barycenter of a weighted graph**," TSE Working Papers 16-652, Toulouse School of Economics (TSE).- Sébastien Gadat & Ioana Gavra & Laurent Risser, 2018.
"
**How to Calculate the Barycenter of a Weighted Graph**," Mathematics of Operations Research, INFORMS, vol. 43(4), pages 1085-1118, November.

- Sébastien Gadat & Ioana Gavra & Laurent Risser, 2018.
"
- Gadat, Sébastien & Marteau, Clément & Maugis, Cathy, 2016.
"
**Parameter recovery in two-component contamination mixtures: the L2 strategy**," TSE Working Papers 16-653, Toulouse School of Economics (TSE), revised Feb 2018.- Sébastien Gadat & Jonas Kahn & Clément Marteau & Cathy Maugis, 2020.
"
**Parameter recovery in two-component contamination mixtures: the L2 strategy**," Post-Print hal-03328654, HAL.

- Sébastien Gadat & Jonas Kahn & Clément Marteau & Cathy Maugis, 2020.
"
- Christophe, Claire & Gadat, Sébastien & Cattiaux, Patrick, 2016.
"
**A stochastic model for cytotoxic T. Lymphocyte interaction with tumor nodules**," TSE Working Papers 16-711, Toulouse School of Economics (TSE). - Gadat, Sébastien & Panloup, Fabien & Saadane, Sofiane, 2015.
"
**Regret bound for Narendra-Shapiro bandit algorithms**," TSE Working Papers 15-556, Toulouse School of Economics (TSE), revised May 2016. - Chopin, Nicolas & Gadat, Sébastien & Guedj, Benjamin & Guyader, Arnaud & Vernet, Elodie, 2015.
"
**On some recent advances in high dimensional Bayesian Statistics**," TSE Working Papers 15-557, Toulouse School of Economics (TSE). - Gadat, Sébastien & Klein, Thierry & Marteau, Clément, 2014.
"
**Classification with the nearest neighbor rule in general finite dimensional spaces**," TSE Working Papers 14-540, Toulouse School of Economics (TSE). - Vasconcelos, Zilton & Müller, Sabina & Wong, Y. & Christophe, C. & Gadat, Sébastien & Valitutti, S. & Dupré, L., 2014.
"
**Individual human cytotoxic T Lymphocytes exhibit intraclonal heterogeneity in cumulative killing**," TSE Working Papers 14-538, Toulouse School of Economics (TSE). - Christophe, C. & Rodrigues, M. & Müller, Sabina & Dupré, L. & Gadat, Sébastien & Valitutti, S. & Cattiaux, Patrick, 2014.
"
**A biased competition model of dynamical cytotoxic T lymphocytes/tumor nodule interaction**," TSE Working Papers 14-539, Toulouse School of Economics (TSE). - S'ebastien Gadat & Laurent Miclo & Fabien Panloup, 2013.
"
**A stochastic model for speculative bubbles**," Papers 1309.6287, arXiv.org.

### Articles

- Sébastien Gadat & Ioana Gavra & Laurent Risser, 2018.
"
**How to Calculate the Barycenter of a Weighted Graph**," Mathematics of Operations Research, INFORMS, vol. 43(4), pages 1085-1118, November.- Gadat, Sébastien & Gavra, Ioana & Risser, Laurent, 2016.
"
**How to calculate the barycenter of a weighted graph**," TSE Working Papers 16-652, Toulouse School of Economics (TSE).

- Gadat, Sébastien & Gavra, Ioana & Risser, Laurent, 2016.
"
- Claire Christophe & Sabina Müller & Magda Rodrigues & Anne-Elisabeth Petit & Patrick Cattiaux & Loïc Dupré & Sébastien Gadat & Salvatore Valitutti, 2015.
"
**A Biased Competition Theory of Cytotoxic T Lymphocyte Interaction with Tumor Nodules**," PLOS ONE, Public Library of Science, vol. 10(3), pages 1-23, March. - Lê Cao, Kim-Anh & Bonnet, Agnès & Gadat, Sébastien, 2009.
"
**Multiclass classification and gene selection with a stochastic algorithm**," Computational Statistics & Data Analysis, Elsevier, vol. 53(10), pages 3601-3615, August. - Lê Cao Kim-Anh & Gonçalves Olivier & Besse Philippe & Gadat Sébastien, 2007.
"
**Selection of Biologically Relevant Genes with a Wrapper Stochastic Algorithm**," Statistical Applications in Genetics and Molecular Biology, De Gruyter, vol. 6(1), pages 1-23, November.

## Citations

Many of the citations below have been collected in an experimental project, CitEc, where a more detailed citation analysis can be found. These are citations from works listed in RePEc that could be analyzed mechanically. So far, only a minority of all works could be analyzed. See under "Corrections" how you can help improve the citation analysis.### Working papers

- Gadat, Sébastien & Panloup, Fabien & Pellegrini, C., 2020.
"
**On the cost of Bayesian posterior mean strategy for log-concave models**," TSE Working Papers 20-1155, Toulouse School of Economics (TSE), revised Feb 2022.Cited by:

- Crespo, Marelys & Gadat, Sébastien & Gendre, Xavier, 2023.
"
**Stochastic Langevin Monte Carlo for (weakly) log-concave posterior distributions**," TSE Working Papers 23-1398, Toulouse School of Economics (TSE). - Crespo, Marelys, 2024.
"
**Discretisation of Langevin diffusion in the weak log-concave case**," TSE Working Papers 24-1506, Toulouse School of Economics (TSE).

- Crespo, Marelys & Gadat, Sébastien & Gendre, Xavier, 2023.
"
- Gadat, Sébastien & Costa, Manon, 2020.
"
**Non asymptotic controls on a stochastic algorithm for superquantile approximation**," TSE Working Papers 20-1149, Toulouse School of Economics (TSE).Cited by:

- Vishwajit Hegde & Arvind S. Menon & L. A. Prashanth & Krishna Jagannathan, 2021.
"
**Online Estimation and Optimization of Utility-Based Shortfall Risk**," Papers 2111.08805, arXiv.org, revised Nov 2023.

- Vishwajit Hegde & Arvind S. Menon & L. A. Prashanth & Krishna Jagannathan, 2021.
"
- Costa, Manon & Gadat, Sébastien & Bercu, Bernard, 2020.
"
**Stochastic approximation algorithms for superquantiles estimation**," TSE Working Papers 20-1142, Toulouse School of Economics (TSE).Cited by:

- Gadat, Sébastien & Gavra, Ioana, 2021.
"
**Asymptotic study of stochastic adaptive algorithm in non-convex landscape**," TSE Working Papers 21-1175, Toulouse School of Economics (TSE). - Vishwajit Hegde & Arvind S. Menon & L. A. Prashanth & Krishna Jagannathan, 2021.
"
**Online Estimation and Optimization of Utility-Based Shortfall Risk**," Papers 2111.08805, arXiv.org, revised Nov 2023. - Manon Costa & Sébastien Gadat, 2021.
"
**Non-asymptotic study of a recursive superquantile estimation algorithm**," Post-Print hal-03610477, HAL. - Sébastien Gadat & Ioana Gavra, 2022.
"
**Asymptotic study of stochastic adaptive algorithm in non-convex landscape**," Post-Print hal-03857182, HAL. - Gadat, Sébastien & Costa, Manon, 2020.
"
**Non asymptotic controls on a stochastic algorithm for superquantile approximation**," TSE Working Papers 20-1149, Toulouse School of Economics (TSE).

- Gadat, Sébastien & Gavra, Ioana, 2021.
"
- Gadat, Sébastien & Panloup, Fabien & Saadane, Sofiane, 2016.
"
**Stochastic Heavy Ball**," TSE Working Papers 16-712, Toulouse School of Economics (TSE).Cited by:

- Nicolas Loizou & Peter Richtárik, 2020.
"
**Momentum and stochastic momentum for stochastic gradient, Newton, proximal point and subspace descent methods**," Computational Optimization and Applications, Springer, vol. 77(3), pages 653-710, December. - Gadat, Sébastien & Gavra, Ioana, 2021.
"
**Asymptotic study of stochastic adaptive algorithm in non-convex landscape**," TSE Working Papers 21-1175, Toulouse School of Economics (TSE). - Costa, Manon & Gadat, Sébastien & Bercu, Bernard, 2020.
"
**Stochastic approximation algorithms for superquantiles estimation**," TSE Working Papers 20-1142, Toulouse School of Economics (TSE).

- Nicolas Loizou & Peter Richtárik, 2020.
"
- Gadat, Sébastien & Gavra, Ioana & Risser, Laurent, 2016.
"
**How to calculate the barycenter of a weighted graph**," TSE Working Papers 16-652, Toulouse School of Economics (TSE).- Sébastien Gadat & Ioana Gavra & Laurent Risser, 2018.
"
**How to Calculate the Barycenter of a Weighted Graph**," Mathematics of Operations Research, INFORMS, vol. 43(4), pages 1085-1118, November.

Cited by:

- Crespo, Marelys & Gadat, Sébastien & Gendre, Xavier, 2023.
"
**Stochastic Langevin Monte Carlo for (weakly) log-concave posterior distributions**," TSE Working Papers 23-1398, Toulouse School of Economics (TSE). - Steffen Borgwardt, 2022.
"
**An LP-based, strongly-polynomial 2-approximation algorithm for sparse Wasserstein barycenters**," Operational Research, Springer, vol. 22(2), pages 1511-1551, April.

- Sébastien Gadat & Ioana Gavra & Laurent Risser, 2018.
"
- Gadat, Sébastien & Marteau, Clément & Maugis, Cathy, 2016.
"
**Parameter recovery in two-component contamination mixtures: the L2 strategy**," TSE Working Papers 16-653, Toulouse School of Economics (TSE), revised Feb 2018.- Sébastien Gadat & Jonas Kahn & Clément Marteau & Cathy Maugis, 2020.
"
**Parameter recovery in two-component contamination mixtures: the L2 strategy**," Post-Print hal-03328654, HAL.

Cited by:

- De Castro, Y. & Gadat, Sébastien & Marteau, Clément & Maugis, Cathy, 2019.
"
**SuperMix: Sparse Regularization for Mixture**," TSE Working Papers 19-1040, Toulouse School of Economics (TSE), revised Sep 2020.

- Sébastien Gadat & Jonas Kahn & Clément Marteau & Cathy Maugis, 2020.
"
- Gadat, Sébastien & Klein, Thierry & Marteau, Clément, 2014.
"
**Classification with the nearest neighbor rule in general finite dimensional spaces**," TSE Working Papers 14-540, Toulouse School of Economics (TSE).Cited by:

- Chopin, Nicolas & Gadat, Sébastien & Guedj, Benjamin & Guyader, Arnaud & Vernet, Elodie, 2015.
"
**On some recent advances in high dimensional Bayesian Statistics**," TSE Working Papers 15-557, Toulouse School of Economics (TSE).

- Chopin, Nicolas & Gadat, Sébastien & Guedj, Benjamin & Guyader, Arnaud & Vernet, Elodie, 2015.
"
- S'ebastien Gadat & Laurent Miclo & Fabien Panloup, 2013.
"
**A stochastic model for speculative bubbles**," Papers 1309.6287, arXiv.org.Cited by:

- Gadat, Sébastien & Panloup, Fabien & Saadane, Sofiane, 2016.
"
**Stochastic Heavy Ball**," TSE Working Papers 16-712, Toulouse School of Economics (TSE).

- Gadat, Sébastien & Panloup, Fabien & Saadane, Sofiane, 2016.
"

### Articles

- Sébastien Gadat & Ioana Gavra & Laurent Risser, 2018.
"
**How to Calculate the Barycenter of a Weighted Graph**," Mathematics of Operations Research, INFORMS, vol. 43(4), pages 1085-1118, November.See citations under working paper version above.- Gadat, Sébastien & Gavra, Ioana & Risser, Laurent, 2016.
"
**How to calculate the barycenter of a weighted graph**," TSE Working Papers 16-652, Toulouse School of Economics (TSE).

- Gadat, Sébastien & Gavra, Ioana & Risser, Laurent, 2016.
"
- Lê Cao Kim-Anh & Gonçalves Olivier & Besse Philippe & Gadat Sébastien, 2007.
"
**Selection of Biologically Relevant Genes with a Wrapper Stochastic Algorithm**," Statistical Applications in Genetics and Molecular Biology, De Gruyter, vol. 6(1), pages 1-23, November.Cited by:

- Lê Cao Kim-Anh & Rossouw Debra & Robert-Granié Christèle & Besse Philippe, 2008.
"
**A Sparse PLS for Variable Selection when Integrating Omics Data**," Statistical Applications in Genetics and Molecular Biology, De Gruyter, vol. 7(1), pages 1-32, November. - Lê Cao, Kim-Anh & Bonnet, Agnès & Gadat, Sébastien, 2009.
"
**Multiclass classification and gene selection with a stochastic algorithm**," Computational Statistics & Data Analysis, Elsevier, vol. 53(10), pages 3601-3615, August.

- Lê Cao Kim-Anh & Rossouw Debra & Robert-Granié Christèle & Besse Philippe, 2008.
"

## More information

Research fields, statistics, top rankings, if available.### Statistics

#### Access and download statistics for all items

### NEP Fields

NEP is an announcement service for new working papers, with a weekly report in each of many fields. This author has had 8 papers announced in NEP. These are the fields, ordered by number of announcements, along with their dates. If the author is listed in the directory of specialists for this field, a link is also provided.- NEP-ECM: Econometrics (4) 2015-03-13 2016-06-14 2020-09-28 2020-10-12
- NEP-BIG: Big Data (1) 2021-08-09
- NEP-CMP: Computational Economics (1) 2021-08-09
- NEP-DCM: Discrete Choice Models (1) 2020-11-02
- NEP-ENV: Environmental Economics (1) 2021-08-09
- NEP-ISF: Islamic Finance (1) 2021-09-20
- NEP-ORE: Operations Research (1) 2020-10-12
- NEP-RMG: Risk Management (1) 2016-11-13

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