Preprints

    [1] G. Lauga, E. Riccietti, L. Briceño-Arias, N. Pustelnik & P. Gonçalves, A flexible block-coordinate forward-backward algorithm for non-smooth and non-convex optimization, 2025.
    [2] N. Brisebarre, G. Carrino, T. Mary & E. Riccietti, Mixed precision Newton’s method for optimization, 2026.
    [3] M. Chaumette, R. Gribonval & E. Riccietti, CROQuant: Complex Rank-One Quantization Algorithm, with Application to Butterfly Factorizations, 2026. [pdf]
    [4] R. Gribonval, T. Mary & E. Riccietti, Optimal quantization of rank-one matrices in floating-point arithmetic-with applications to butterfly factorizations, 2023. [pdf]

Book chapters

    [1] A. Kopaničáková & E. Riccietti, Introduction to optimization methods for training SciML models in A smooth introduction to SciML: Mathematical foundations and numerical implementation, submitted to Cambridge University Press, 2026.

International conferences with proceedings

    [1] E. Desainte-Maréville, M. Foare, P. Gonçalves, N. Pustelnik & E. Riccietti, Multiresolution Adaptive Block-Coordinate Forward-Backward for Image Reconstruction, EUSIPCO 2026, 2026. [pdf]
    [2] A. Gonon, N. Brisebarre, E. Riccietti & R. Gribonval, A rescaling-invariant Lipschitz bound based on path-metrics for modern ReLU network parameterizations, ICML, 2025.
    [3] A. Gonon, N. Brisebarre, E. Riccietti & R. Gribonval, A path-norm toolkit for modern networks: consequences, promises and challenges, ICLR Spotlight, 2024. [doi]
    [4] A.Repetti. G. Lauga, A multilevel framework for accelerating uSARA in radio-interferometric imaging, EUSIPCO, 2024.
    [5] Q.T. Le, E. Riccietti & R. Gribonval, Does a sparse ReLU network training problem always admit an optimum?, NeurIPS, 2023. [pdf]
    [6] E.Riccietti. G. Lauga, Multilevel FISTA for Image Restoration, ICASSP, 2023. [pdf]
    [7] L. Zheng, G. Puy, E. Riccietti, P. Pérez & R. Gribonval, Self-supervised learning with rotation-invariant kernels, ICLR, 2023. [pdf]
    [8] QT. Le, L. Zheng, E. Riccietti & R. Gribonval, Fast Learning of Fast Transforms, with Guarantees in ICASSP, 2022. [pdf] [doi]
    [9] E. Riccietti, S. Bellavia & S. Sello, Numerical Methods for Optimization Problems Arising in Energetic Districts in Progress in Industrial Mathematics at ECMI 2016, 2016. [pdf] [doi]

Journal Articles

    [1] EM. El Arar, SI. Filip, T. Mary & E. Riccietti, Mixed precision accumulation for neural network inference guided by componentwise forward error analysis, To appear in IMA Journal of Numerical Analysis, 2026.
    [2] N. Laurent, J. Tachella, E. Riccietti & N. Pustelnik, Multilevel plug-and-play image restoration, IEEE Transactions on Computational Imaging, IEEE, 2025.
    [3] F. Marini, M. Porcelli & E. Riccietti, A multilevel stochastic regularized first-order method with application to finite sum minimization, To appear in Mathematics of computation, 2026.
    [4] L. Cocchi, F. Marini, M. Porcelli & E. Riccietti, Black-box optimization for the design of a jet plate for impingement cooling, Optimization and Engineering, 27:229-260, 2026. [doi]
    [5] Q.T. Le, L. Zheng, E. Riccietti & R. Gribonval, Butterfly factorization with error guarantees, SIAM Journal on Matrix Analysis and Applications, , 2025.
    [6] R. Gribonval, E. Riccietti, Q.T. Le & Zheng, Rapture of the deep: highs and lows of sparsity in a world of depths, IEEE Signal Processing Magazine, 2025.
    [7] S. Gratton, V. Mercier, E. Riccietti & Ph.L. Toint, A block-coordinate approach of multi-level optimization with an application to physics-informed neural networks, Computational Optimization and Applications, pages 1-33, Springer, 2024. [pdf]
    [8] G. Lauga, E. Riccietti, N. Pustelnik & P. Gonçalves, IML FISTA: A Multilevel Framework for Inexact and Inertial Forward-Backward. Application to Image Restoration, SIAM Journal on Imaging Sciences, 17(3):1347-1376, SIAM, 2024. [pdf]
    [9] A. Gonon, N. Brisebarre, R. Gribonval & E. Riccietti, Approximation speed of quantized vs. unquantized ReLU neural networks and beyond, IEEE Transactions on Information Theory, 2023. [pdf]
    [10] L. Zheng, E. Riccietti & R. Gribonval, Efficient Identification of Butterfly Sparse Matrix Factorizations, SIAM Journal on Mathematics of Data Science, 2023. [pdf] [doi]
    [11] QT. Le, E. Riccietti & R. Gribonval, Spurious Valleys, NP-hardness, and Tractability of Sparse Matrix Factorization With Fixed Support, SIAM Journal on Matrix Analysis and Applications, 44(2):503-529, SIAM, 2023. [pdf]
    [12] A.L. Custodio, Y. Diouane, R. Garmanjani & E. Riccietti, Worst-case complexity bounds of directional direct-search methods for multiobjective optimization, Journal of Optimization Theory and Applications, 188(1):1-21, 2020. [pdf] [doi]
    [13] H. Calandra, S. Gratton, E. Riccietti & X. Vasseur, On iterative solution of the extended normal equations, SIAM Journal on Matrix Analysis and Applications, 41(4):1571-1589, 2020. [pdf] [doi]
    [14] H. Calandra, S. Gratton, E. Riccietti & X. Vasseur, On a multilevel Levenberg-Marquardt method for the training of artificial neural networks and its application to the solution of partial differential equations, Optimization Methods and Software, 2020. [pdf] [doi]
    [15] H. Calandra, S. Gratton, E. Riccietti & X. Vasseur, On high-order multilevel optimization strategies, SIAM Journal on Optimization, 31(1):307-330, 2020. [pdf] [doi]
    [16] S. Bellavia, M. Donatelli & E. Riccietti, An inexact non stationary Tikhonov procedure for large-scale nonlinear ill-posed problems, Inverse Problems, 36(9), 2020. [pdf] [doi]
    [17] S. Bellavia, S. Gratton & E. Riccietti, A Levenberg-Marquardt method for large nonlinear least-squares problems with noisy functions and gradients, Numerische Mathematik, 140(3):791-825, Springer, 2018. [pdf] [doi]
    [18] S. Bellavia & E. Riccietti, On an elliptical trust-region procedure for ill-posed nonlinear least squares problems, Journal of Optimization Theory and Applications, 158(3):824-859, 2018. [pdf] [doi]
    [19] E. Riccietti, S. Bellavia & S. Sello, Sequential Linear Programming and Particle Swarm Optimization for the optimization of energy districts, Engineering Optimization, pages 1-17, Taylor & Francis, 2018. [pdf] [doi]
    [20] E. Riccietti, J. Bellucci, M. Checcucci, M. Marconcini & A. Arnone, Support Vector Machine classification applied to the parametric design of centrifugal pumps, Engineering Optimization, pages 1-21, Taylor & Francis, 2017. [pdf] [doi]
    [21] S. Bellavia, B. Morini & E. Riccietti, On an adaptive regularization for ill-posed nonlinear systems and its trust-region implementation, Computational Optimization and Applications, 64(1):1-30, Springer, 2016. [pdf] [doi]

French conferences with proceedings

    [1] N. Laurent, E. Riccietti, J. Tachella & N. Pustelnik, Algorithme multiniveau hybride pour la restauration d’images, GRETSI, 2025.
    [2] R. Gribonval & E. Riccietti, Une brève histoire de la parcimonie: du traitement de signal à l’apprentissage profond, GRETSI, 2025.
    [3] M. Chaumette, R. Gribonval & E. Riccietti, CROQuant: Complex Rank-One Quantization Algorithm, GRETSI, 2025.
    [4] R. Gribonval, T. Mary & E. Riccietti, Scaling is all you need: quantization of butterfly matrix products via optimal rank-one quantization, GRETSI, 2023. [pdf]
    [5] L. Zheng, G. Puy, E. Riccietti, Perez. P. & R. Gribonval, Factorisation butterfly d’une matrice permuté par partitionnement spectral alterné, GRETSI, 2023. [pdf]
    [6] G. Lauga, E. Riccietti, N. Pustelnik & P. Gonçalves, Méthodes multi-niveaux pour la restauration d'images hyperspectrales, GRETSI, 2023. [pdf]
    [7] E.Riccietti. G. Lauga, Méthodes proximales multi-niveaux pour la restauration d'images, GRETSI, 2022. [pdf]

Thesis

    [1] E. Riccietti, Numerical methods for optimization problems: an application to energetic districts Master thesis, 2014. [pdf]
    [2] E. Riccietti, Levenberg-Marquardt methods for the solution of noisy nonlinear least squares problems PhD thesis, 2018. [pdf]