Pierre Mergny

Publications

A complete and up-to-date list is available on my Google Scholar. My PhD thesis, Spherical integrals and their applications to random matrix theory, is available here.

2026

Spectral phase transitions in Gaussian multi-index models
Florent Krzakala, Pierre Mergny, Vanessa Piccolo
Preprint, 2026.
Spectral Thresholds in Correlated Spiked Models and Fundamental Limits of Partial Least Squares
Pierre Mergny, Lenka Zdeborová
AISTATS 2026, Proceedings of Machine Learning Research 300.

2025

Computational Thresholds in Multi-Modal Learning via the Spiked Matrix-Tensor Model
Hugo Tabanelli, Pierre Mergny, Lenka Zdeborová, Florent Krzakala
Preprint, 2025.
Optimal Spectral Transitions in High-Dimensional Multi-Index Models
Leonardo Defilippis, Yatin Dandi, Pierre Mergny, Florent Krzakala, Bruno Loureiro
NeurIPS 2025, Advances in Neural Information Processing Systems 38.

2024

Replica method for computational problems with randomness: principles and illustrations
J. Steinberg, U. Adomaitytė, A. Fachechi, Pierre Mergny, D. Barbier, R. Monasson
Journal of Statistical Mechanics: Theory and Experiment 2024, 104002.
Fundamental Limits of Non-Linear Low-Rank Matrix Estimation
Pierre Mergny, Justin Ko, Florent Krzakala, Lenka Zdeborová
Conference on Learning Theory (COLT), 2024.
Spectral Phase Transition and Optimal PCA in Block-Structured Spiked Models
Pierre Mergny, Justin Ko, Florent Krzakala
International Conference on Machine Learning (ICML), 2024.

2023

Spectral Phase Transitions in Non-Linear Wigner Spiked Models
Alice Guionnet, Justin Ko, Florent Krzakala, Pierre Mergny, Lenka Zdeborová
Preprint, 2023.

2022

Right large deviation principle for the top eigenvalue of the sum or product of invariant random matrices
Pierre Mergny, Marc Potters
Journal of Statistical Mechanics: Theory and Experiment, 2022, 063301.
An explicit example for the high temperature convolution: crossover between the binomial law B(2,1/2) and the arcsine law
Pierre Mergny
Preprint, 2022.
Rank one HCIZ at high temperature: interpolating between classical and free convolutions
Pierre Mergny, Marc Potters
SciPost Physics 12, 022 (2022).

2021

Stability of large complex systems with heterogeneous relaxation dynamics
Pierre Mergny, Satya N. Majumdar
Journal of Statistical Mechanics: Theory and Experiment, 2021, 123301.

2020

Asymptotic behavior of the multiplicative counterpart of the Harish-Chandra integral and the S-transform
Pierre Mergny, Marc Potters
Preprint, 2020.
Statistical physics of interacting proteins: Impact of dataset size and quality assessed in synthetic sequences
Carlos A. Gandarilla-Pérez, Pierre Mergny, Martin Weigt, Anne-Florence Bitbol
Physical Review E 101, 032413 (2020).