Heriot-Watt University
Edinburgh EH14 4ASColin Maclaurin Building CMT.19Aa.repetti@hw.ac.uk
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a.repetti@hw.ac.uk
Associate Professor
Department of Actuarial Mathematics and Statistics School of Mathematical and Computer Sciences
Institute of Sensors, Signals, and Systems School of Engineering and Physical Sciences
Maxwell Institute for Mathematical Sciences - Edinburgh
Department of Actuarial Mathematics and Statistics School of Mathematical and Computer Sciences
Institute of Sensors, Signals, and Systems School of Engineering and Physical Sciences
Maxwell Institute for Mathematical Sciences - Edinburgh
Curriculum
Curriculum
I have received an MSc degree in applied mathematics, with a major in optimisation, from the Université Pierre et Marie Curie (UPMC, Paris VI, France) in September 2011.
I have completed a PhD in computer sciences at the Université Paris-Est Marne-la-Vallée (France) in June 2015, focusing on the development of accelerated optimisation algorithms to solve large scale inverse problems.
Between September 2014 and August 2015, I was a "attachée temporaire d'enseignement et de recherche" (equivalent of Research Associate position, with full lecturer teaching load) at the Université Paris-Est Marne-la-Vallée.
Between September 2015 and September 2018, I was a Research Associate in the BASP group, in the Institute of Sensors, Signals and Systems (School of Engineering and Physical Sciences) at the Heriot-Watt University (Edinburgh, UK), where I developed scalable methods for astronomical and medical imaging.
In October 2018 I have been appointed as an Assistant Professor at the Heriot-Watt Univeristy (Edinburgh, UK), affiliated with both the Department of Actuarial Mathematics and Statistics (School of Mathematics and Computer Sciences) and the Institute of Sensors, Signals and Systems (School of Engineering and Physical Sciences). I have been promoted to Associate Professor in the same schools in August 2023.
I have completed a PhD in computer sciences at the Université Paris-Est Marne-la-Vallée (France) in June 2015, focusing on the development of accelerated optimisation algorithms to solve large scale inverse problems.
Between September 2014 and August 2015, I was a "attachée temporaire d'enseignement et de recherche" (equivalent of Research Associate position, with full lecturer teaching load) at the Université Paris-Est Marne-la-Vallée.
Between September 2015 and September 2018, I was a Research Associate in the BASP group, in the Institute of Sensors, Signals and Systems (School of Engineering and Physical Sciences) at the Heriot-Watt University (Edinburgh, UK), where I developed scalable methods for astronomical and medical imaging.
In October 2018 I have been appointed as an Assistant Professor at the Heriot-Watt Univeristy (Edinburgh, UK), affiliated with both the Department of Actuarial Mathematics and Statistics (School of Mathematics and Computer Sciences) and the Institute of Sensors, Signals and Systems (School of Engineering and Physical Sciences). I have been promoted to Associate Professor in the same schools in August 2023.
Academic positions
Academic positions
Since August 2023
Associate Professor at Heriot-Watt University (Edinburgh - UK)Since November 2024: School of Mathematics and Computer Sciences August 2023 -- October 2024: Joint position between the School of Mathematics and Computer Sciences and the School of Engineering and Physical SciencesApril 2022 - March 2023
RSE Personal Research Fellowship from the Royal Society of Edinburgh (Heriot Watt University - Edinburgh - UK)October 2018 - July 2023
Assistant Professor at Heriot-Watt University (Edinburgh - UK)Joint position between the School of Mathematics and Computer Sciences and the School of Engineering and Physical Sciences------------------------------------------------------------
September 2015 - September 2018
Research associate at Heriot-Watt University (Edinburgh - UK)Research fields: Inverse problems, Optimisation, Astronomical imaging (radio-interferometry, imaging, calibration), Medical imaging (MRI, dMRI, MRF), Bayesian inferenceSeptember 2015 - December 2017
Teaching assistant at Heriot-Watt University (Edinburgh - UK)Labs & Tutorials: Signals and systems (undergraduate course), Compressive sensing and Optimisation (postgraduate course)------------------------------------------------------------
September 2014 - August 2015
Attachée Temporaire d'Enseignement et de Recherche (Research associate with full lecturer teaching load) at Paris-Est Marne-la-Vallée University, IUT Meaux, and Ecole nationale des sciences géographiques (France)Lectures, Labs & Tutorials: Fourier analysis for signal processing (undergraduate and postgraduate courses), Probabilities (postgraduate course), Stochastic processes (postgraduate course), Information theory (undergraduate course)------------------------------------------------------------
December 2011 - June 2015
PhD student at Paris-Est Marne-la-Vallée University (France)Research fields: Optimisation, Signal and image processingSeptember 2012 - June 2014
Teaching assistant at IUT Meaux (France)Labs & Tutorials: Information theory (undergraduate course)December 2011 - June 2014
Teaching assistant at Paris-Est Marne-la-Vallée University (France)Labs & Tutorials: Algebra(undergraduate course), Fourier analysis for signal processing (undergraduate course), Probabilities (postgraduate course)Education
Education
June 2015
PhD degree from Paris-Est Marne-la-Vallée University (Université Gustave Eiffel - France)Research fields: Optimisation, Signal and image processingThesis title: Large scale optimization algorithms: Application to inverse problemsKey words: Proximal methods, Majorization-minimization, Convex and non-convex optimisation, Primal-dual methods, Signal and image processingSupervision: Jean-Christophe Pesquet and Emilie ChouzenouxSeptember 2011
Master of Science degree from Pierre et Marie Curie University (UPMC - Paris VI - Sorbonne Universités- France)Applied Mathematics: Optimisation, Game theory, Application to EconomyMajor: OptimisationThesis title: An entropic analog to the Moreau proximal decomposition theoremKey words: Convex analysis, Moreau proximal decomposition, Kullback-Liebler divergence, Bregman distanceSupervision: Patrick Louis CombettesResearch
Research
Conference organisation:
Conference organisation:
- Organising Committee of the SIAM Conference on Optimization 2026, Edinburgh, June 2026.
- Organising Committee of the IEEE SSP workshop 2025, Edinburgh, UK, June 2025.
- Special session “On the Interface of Optimization and Deep Learning for Computational Imaging" at the International Biomedical and Astronomical Signal Processing (BASP) Frontiers Conference, January 2025
- Technical Program Committee of the IMA conference on Inverse Problems 2024, Bath, UK.
- Organising Committee of the IEEE MLSP conference 2024, London, UK.
- Organising Committee of the SIAM Imaging Science conference 2024, Atlanta, US.
- Co-Organiser (with Julie Delon, Carrola Schoenlib and Gabriele Steidl), ICMS workshop on "Imaging inverse problems and generative models" 2024, Edinburgh, UK.
- Special session on “Advanced Optimization Methods for Learning in Image Processing” at the 30th European Signal Processing Conference (EUSIPCO), September 2022.
- Technical Program Committee of the IMA conference on Inverse Problems 2021, Edinburgh, UK.
- Organising Committee of the SIAM Imaging Science conference 2022, Berlin, Germany.
- Technical Program Committee of the SPARS conference 2019, Toulouse, France.
- Organising committee of the BASP international workshop 2019, Villars-sur-Ollon, Switzerland.
- Special session on “Optimization and Sparse Inverse Problems” at the conference on Wavelets and Sparsity XVII, part of the SPIE Optical Engineering + Applications, San Diego, California, US.
Editorial board:
Editorial board:
- IEEE SPTM TC member January 2024-December 2026.
- EURASIP TMTSP TAC member since January 2022.
- IEEE Transaction Computational Imaging (TCI). Associate editor since Dec. 2025.
- Digital Signal Processing (DSP), Elsevier. Associate editor 2022-2024.
- IEEE Signal Processing Letter (SPL). Associate editor 2022-2024.
Visits and collaborations
Visits and collaborations
- July 2024: Alan Turing Institute, London, UK, INI satellite programme on Diffusions in machine learning: Foundations, generative models and non-convex optimisation
- May 2023: University of Lille, France, Prof. Pierre Chainais.
- April-June 2023: Isaac Newton Institute, Cambridge, UK, INI programme on Rich and Nonlinear Tomography - a multidisciplinary approach.
- November-December 2022: ENS Lyon, France, Dr. Nelly Pustelnik.
- April-July 2022: CentraleSup ́elec, Univertit ́e Paris-Saclay, France, Dr. Emilie Chouzenoux.
- December 2021: University of Lille, France, Prof. Pierre Chainais.
- March 2018: University of Munster, Germany, Prof. Martin Burger.
- Sept. – Oct. 2013: University of Kaiserlautern, Germany, Prof. Gabriele Steidl.
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