2024
J. E. Cohen and V. Leplat. "Efficient Algorithms for Regularized Nonnegative Scale-invariant Low-rank Approximation Models ", SIAM LA 24 conference, Paris, May, 2024. [slides]
L.-T.-K. Hien, V. Leplat and N. Gillis. "Block Majorization Minimization with Extrapolation and Application to β-NMF ", SIAM LA 24 conference, Paris, May, 2024. [slides].
C. Prevost and V. Leplat. "Data fusion and unmixing with the regularized nonnegative block-term decomposition", SIAM LA 24 conference, Paris, May, 2024. [slides]
2023
V. Leplat and N. Gillis."Nonnegative Matrix Factorization: Introduction, Algorithms, Identifiability and Beyond ", Polyak's summer school on optimization 2023, Nijni Novgorod, July., 2023. [slides].
V. Leplat, Anh Huy Phan and A.M.S. Ang, "Inexact Higher-order proximal algorithms for tensor factorization". IEEE SSP 2023, Hanoi, Vietnam. [poster]
C. Prevost and V. Leplat, "Nonnegative Block Term Decomposition with the beta-divergence for data fusion and blind spectral unmixing". IEEE ICASSP 2023, Rhodes Island, Greece. [video] [poster] [slides]
V. Leplat and I. Oseledets."Recent successes of higher-order methods in machine learning ", data fusion 2023, Moscow, April., 2023. [abstract], [slides].
2022
V. Leplat."NAG-GS: semi-implicit, Accelerated and Robust Stochastic Optimizers ", SMBU - Skoltech and AIRI seminar 2022, Moscow-China, October, 2022. [slides]
2021
V. Leplat, N. Gillis and C. Févotte."Multi-Resolution Beta-Divergence NMF for Blind Spectral Unmixing ", IEEE Asilomar Conference 2021, California, US, November 2021. [poster] [slides] [video]
A.M.S. Ang, V.Leplat, N. Gillis, "Fast algorithm for complex-NMF with application to source separation ", EUSIPCO21.[video]
V.Leplat, "Multiplicative Updates for NMF with Beta-Divergences under Disjoint Equality constraints", SIAM Conference on Applied Linear Algebra (LA21), New Orleans, Louisiana, US, May 2021. [abstract] [slides] [video]
V.Leplat, "Nonnegative Matrix Factorization - Models, algorithms and applications", CDISE seminar, Skolkovo Institute of Sciences and Technology, RU, April 2021. [abstract] [slides] [video]
2020
V.Leplat, "Algorithms for Nonnegative Matrix Factorization", UCL/ICTEAM/INMA seminar, Louvain-la-neuve, Belgium, November 2020. [abstract] [slides]
A.M.S. Ang, V.Leplat, N. Gillis, "Blind audio source separation with minimum-volume beta-divergence NMF", iTWIST20. [slides][video]
V.Leplat, "Multi-resolution β-NMF and A general framework for β-NMF under disjoint equality constraints", COLORAMAP DAY 2020. [slides]
2019
V.Leplat, "Minimum-volume NMF for Audio Source Separation", CORE UCL, Louvain-la-neuve, Belgium. [slides]
V.Leplat, "Minimum-volume KL-NMF for Audio Source Separation", GRETSI 2019, Lille, France. [slides]
V.Leplat, "Minimum-Volume Rank-Deficient Nonnegative Matrix Factorizations", ICASSP 2019, Brighton, UK. [pdf]
2018
V.Leplat, "Séparation de sources sonores", IRIT INP, Toulouse, France. [slides]
V.Leplat, "Audio Source Separation Using Nonnegative Matrix Factorization", ORBEL32, Liège, Belgium. [abstract] [slides]