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Articles de revues

  1. A. Repetti, J. Birdi, A. Dabbech, and Y. Wiaux.
    Non-convex optimization for self-calibration of direction-dependent effects in radio interferometric imaging. Monthly Notices of the Royal Astronomical Society, vol. 470, no. 4, pp. 3981-4006, Oct. 2017. [pdf]

  2. J. Birdi, A. Repetti, and Y. Wiaux.
    A regularized tri-linear approach for optical interferometric imaging. Monthly Notices of the Royal Astronomical Society, vol. 468, no. 1, pp. 1142-1155, Feb. 2017. [pdf]

  3. A. Onose, R. E. Carrillo, A. Repetti, J. D. McEwen, J.-P. Thiran, J.-C. Pesquet, and Y. Wiaux.
    Scalable splitting algorithms for big-data interferometric imaging in the SKA era. Monthly Notices of the Royal Astronomical Society, vol. 462, no. 4, pp. 4314-4335, Aug. 2016. [pdf]

  4. E. Chouzenoux, J.-C. Pesquet and A. Repetti.
    A Block Coordinate Variable Metric Forward-Backward Algorithm. J. Global Optim, vol. 66, no. 3, pp. 457-485, Nov. 2016. [pdf]

  5. J.-C. Pesquet and A. Repetti.
    A Class of Randomized Primal-Dual Algorithms for Distributed Optimization. J. Nonlinear Convex Anal., vol. 16, no. 12, December, 2015. [pdf]

  6. G. Moerkotte, M. Montag, A. Repetti and G. Steidl.
    Proximal Operator of Quotient Functions with Application to a Feasibility Problem in Query Optimization. J. Comput. Appl. Math., vol. 285, pp. 243-255, Sept. 2015. [pdf]

  7. A. Repetti, M. Q. Pham, L. Duval, E. Chouzenoux and J.-C. Pesquet.
    Euclid in a Taxicab: Sparse Blind Deconvolution with Smoothed l1/l2 Regularization. Signal Processing Letters., vol. 22, no. 5, pp. 539-543, May 2015. [pdf] [poster at ICASSP 2015] [toolbox]

  8. E. Chouzenoux, J.-C. Pesquet and A. Repetti.
    Variable Metric Forward-Backward Algorithm for Minimizing the Sum of a Differentiable Function and a Convex Function. J. Optim. Theory and Appl., vol.162, no. 1, pp. 107-132, Jul. 2014. [pdf] [toolbox]

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Articles de conferences

  1. A. Repetti and Y. Wiaux.
    A non-convex perspective on calibration and imaging in radio interferometry. In Proceedings of the conference on Wavelets and Sparsity XVII, part of the SPIE Optical Engineering + Applications, San Diego, California, United States, 6-9 August 2017. [pdf]

  2. A. Repetti, J. Birdi, and Y. Wiaux.
    Non-convex blind deconvolution approach for sparse radio-interferometric imaging. In Proceedings of the Signal Processing with Adaptive Sparse Structured Representations (SPARS 2017), Lisbon, Portugal, 5-8 June 2017. [pdf] [poster]

  3. J. Birdi, A. Repetti, and Y. Wiaux.
    Sparsity regularized optical interferometric imaging. In Proceedings of the Signal Processing with Adaptive Sparse Structured Representations (SPARS 2017), Lisbon, Portugal, 5-8 June 2017. [pdf] [poster]

  4. A. Repetti, E. Chouzenoux and J.-C. Pesquet.
    A random block-coordinate primal-dual proximal algorithm with application to 3D mesh denoising. In Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2015), Brisbane, Australie, 19-24 Avril 2015. [pdf] [poster]

  5. A. Repetti, E. Chouzenoux and J.-C. Pesquet.
    A Nonconvex Regularized Approach for Phase Retrieval. In Proceedings of the IEEE International Conference on Image Processing (ICIP 2014), Paris, France, 27-30 Octobre 2014. [pdf] [poster]

  6. A. Repetti, E. Chouzenoux and J.-C. Pesquet.
    Reconstruction d'image en présence de bruit gaussien dépendant par un algorithme Explicite-Implicite à métrique variable. In Actes du 24e colloque GRETSI, Brest, France, 3-6 septembre 2013. [abstract] [pdf] [slides] [toolbox]

  7. A. Repetti, E. Chouzenoux and J.-C. Pesquet.
    A Penalized Weighted Least Squares Approach for Restoring Data Corrupted with Signal-Dependent Noise. In Proceedings of the 20th European Signal Processing Conference (EUSIPCO 2012), pages 1553-1557, Bucarest, Roumanie, 27-31 août 2012. [pdf] [poster]

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Articles de conferences invites

  1. A. Repetti, J. Birdi, and Y. Wiaux.
    Joint imaging and DDEs calibration for radio interferometry. In Proceedings of international Biomedical and Astronomical Signal Processing (BASP) Frontiers workshop, page 25, Villars-sur-Ollon, Suisse, 29 Janvier-3 Février 2017. [pdf]

  2. A. Repetti, E. Chouzenoux and J.-C. Pesquet.
    Un petit tutoriel sur les méthodes primales-duales pour l'optimisation convexe. In Actes du 25e colloque GRETSI, Lyon, France, 8-11 Septembre 2015. [pdf]

  3. A. Repetti, E. Chouzenoux and J.-C. Pesquet.
    A parallel block-coordinate approach for primal-dual splitting with arbitrary random block selection. In Proceedings of the European Signal Processing Conference (EUSIPCO 2015), Nice, France, 31 Août-4 Septembre 2015. [pdf]

  4. A. Repetti, E. Chouzenoux and J.-C. Pesquet.
    Proximal primal-dual optimization methods. In Proceedings of international Biomedical and Astronomical Signal Processing (BASP) Frontiers workshop, page 25, Villars-sur-Ollon, Suisse, 25-30 janvier 2015. [pdf]

  5. A. Repetti, E. Chouzenoux and J.-C. Pesquet.
    A Preconditioned Forward-Backward Approach with Application to Large-Scale Nonconvex Spectral Unmixing Problems. In Proceedings of the 39th IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2014), pages 1498-1502, Florence, Italie, 4-9 mai 2014. [pdf] [slides]

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Colloques sans acte

  • A. Repetti and Y. Wiaux.
    Joint imaging and calibration using non-convex optimization. Workshop on Variational methods, new optimisation techniques and new fast numerical algorithms , Isaac Newton Institute, Cambridge, UK, 4-8 Sept. 2017. [abstract]

  • A. Repetti and Y. Wiaux.
    Non-convex blind deconvolution approach for sparse image processing. Workshop on New mathematical methods in computational imaging , Heriot-Watt University, Edinburgh, UK, 29th June 2017.

  • A. Repetti, J. Birdi, A. Dabbech, and Y. Wiaux.
    Non-convex optimization for self-calibration of direction-dependent effects in radio interferometric imaging. Radio Imaging in the 21st Century 2017 workshop , La Valetta, Malta, 22-26 May 2017.

  • A. Repetti, and Y. Wiaux.
    Tutorial: Compressive sensing and convex optimization. 3GC4 workshop , Port Alfred, South Africa, 24th October-4th November 2016.

  • A. Repetti, J. Birdi and Y. Wiaux.
    Joint imaging and DDE calibration for RI. 3GC4 workshop , Port Alfred, South Africa, 24th October-4th November 2016. [abstract]

  • A. Repetti, E. Chouzenoux et J.-C. Pesquet.
    Solving large-scale inverse problems using forward-backward based methods. Séminaire Scube - Supelec , Gif-sur-Yvette, France, 11 Mars 2016. [abstract]

  • A. Repetti, E. Chouzenoux et J.-C. Pesquet.
    Adaptations de l’algorithme explicite-implicite pour la résolution de problèmes inverses de grande dimension. Séminaire SPOC - Université de Bourgogne , Dijon, France, 9 Mars 2016. [abstract]

  • A. Repetti, E. Chouzenoux et J.-C. Pesquet.
    Large scale optimization : accelerations using preconditioned and randomized techniques. Séminaire OGre - Université Grenoble Alpes , Grenoble, France, 2 Février 2016.

  • A. Repetti, M. Q. Pham, L. Duval, E. Chouzenoux et J.-C. Pesquet.
    Sparse Deconvolution of Seismic Data with A Regularized Norm Ratio. International Congress on Industrial and Applied Mathematics (ICIAM 2015), Beijing, China, 10-14 Août 2015. [abstract]

  • A. Repetti, F. Abboud et J.-C. Pesquet.
    Solving Convex Constrained Problems using Random Distributed Algorithms. International Symposium in Mathematical Programming (ISMP 2015), Pittsburgh, PA, 12-17 Juillet 2015. [abstract]

  • A. Repetti, E. Chouzenoux et J.-C. Pesquet.
    Convergence Analysis of Block-Coordinate Primal-Dual Algorithms with Arbitrary Random Sampling. International Symposium in Mathematical Programming (ISMP 2015), Pittsburgh, PA, 12-17 Juillet 2015. [abstract]

  • A. Repetti, E. Chouzenoux et J.-C. Pesquet.
    Méthodes proximales primales-duales pour l'optimisation convexe. Séminaire de Probabilités et Statistiques, Université de Lille, France, 17 juin 2015. [abstract]

  • A. Repetti, E. Chouzenoux, M. Q. Pham, L. Duval et J.-C. Pesquet.
    Algorithme préconditionné explicite-implicite et application à la résolution de problèmes inverses en traitement du signal. GdR ISIS - Optimisation non-convexe, Paris, France, 16 octobre 2014. [abstract]

  • A. Repetti, P. L. Combettes and J.-C. Pesquet.
    Randomized primal-dual methods based on stochastic quasi-Fejér monotonicity property. European Conference on Stochastic Programming and Energy Applications (ECSP 2014), Paris, IHP, France, 24 - 26 septembre 2014. [abstract]

  • A. Repetti, E. Chouzenoux and J.-C. Pesquet.
    Proximal methods: tools for solving inverse problems on a large scale. BioImage Informatics and Modeling at the Cellular Scale, Toulouse, France, 30 juin - 2 juillet 2014.

  • A. Repetti, E. Chouzenoux and J.-C. Pesquet.
    Une nouvelle approche régularisée pour la reconstruction de phase. 9ème édition des Journées d'imagerie optique non conventionnelle (JIONC), Paris, France, 19-20 mars 2014. [abstract]

  • A. Repetti, E. Chouzenoux and J.-C. Pesquet.
    Variable metric forward-backward algorithm for minimizing the sum of a differentiable function and a convex function. Advances in Mathematical Image Processing (AIP), Annweiler, Allemagne, 30 septembre - 2 octobre 2013.

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These

Algorithmes d'optimisation en grande dimension :
Applications à la résolution de problèmes inverses

[résumé] [manuscrit]

Encadrement :
  • Jean-Christophe PESQUET
  • Emilie CHOUZENOUX
  • ________________________________________________________

    Contact

    Biomedical and Astronomical Signal Processing group
    Institute of Sensors, Signals and Systems
    Heriot-Watt University
    Edinburgh EH14 4AS
    Scotland UK

    mail: A.Repetti@hw.ac.uk



    .