30-Jan-2025, University of Bari Aldo Moro, 3rd Workshop of UMI (Unione Matematica Utaliana) Group Mathematics for Artificial Intelligence and Machine Learning, MGProx: A nonsmooth multigrid proximal gradient method with adaptive restriction for optimization

02-Aug-2024, University of Waterloo, Canada

26-July-2024, ISMP2024, Montreal, Canada, MGProx

16-May-2024, London School of Economics and Political Science, UK

16-Apr-2024, University of Mons, Belgium, Sum-of-norm NMF

10-Apr-2024, University of Antwerp, Belgium, Workshop on Nonsmooth Optimization and Applications

11-Oct-2023, Imperial College London, Control and Optimisation seminar series

14-Aug-2023. University of Oxford, Numerical Analysis in 21st century & retirement of Nick Trefethen

28-Jun-2023, University College London, Nonnegative Matrix Factorization in Wasserstein distances for source separation

16-Jun-2023, Humboldt-Universitat zu Berlin

4-Dec-2022, CMS Winter meeting 2022, A count norm penalized Graph Trend Filtering

2-Dec-2022, CMS Winter meeting 2022, Multigrid Proximal Gradient Method for Non-Smooth Convex Optimization

30-Sep-2022, SIAM MDS22, Multigrid Proximal Gradient Method for Non-Smooth Convex Optimization

23-Sep-2022, Continuous Optimization seminar, Uni. Waterloo, Multigrid Proximal Gradient Method for Non-Smooth Convex Optimization

21-Dec-2021, NeurIPS2021, Fast Projection onto the Capped Simplex with Applications to Sparse Regression in Bioinformatics

23-Aug-2021, EUSIPCO21,
Fast algorithm for complex-NMF with application to source separation

08-Jun-2021, ICASSP21,
Nonnegative Unimodal Matrix Factorization,
video

17-May-2021, SIAM LA21,
Nonnegative Unimodal Matrix Factorization,
video

12-May-2021, Uni. Waterloo C&O URA seminar,
Hey! Be positive! Nonnegative Matrix Factorization,
video

02-Apr-2021, East Coast Optimization Meeting (ECOM2021),
Nonnegative Unimodal Matrix Factorization

01-Apr-2021, 20th Copper Mountain Conference on Multigrid methods,
Nonnegative Unimodal Matrix Factorization

04-Mar-2021, SIAM CSE21,
Extrapolation on BCD for constrained Matrix/Tensor Factorization

02-Dec-2020, iTWIST20,
Blind audio source separation with minimum-volume beta-divergence NMF,
video

09-Nov-2020, EOS SeLMA seminar,
Nonnegative Unimodal Matrix Factorization

14-Oct-2020, Public PhD Defence,
video,

20-Aug-2019, Seminar, Dept. Applied Maths, Faculty of Maths, U. Waterloo, Canada,
Non-negative Matrix Factorizations : Applications, Theories and Computations

7-August-2019, ICCOPT 2019, TU Berlin, Germany
Accelerating Nonnegative-X by extrapolation, where X \( \in { \) Least Square, Matrix Factoization, Tensor Factorization\(}\)

1-April-2019, Seminar, HKU EEE, Hong Kong
Accelerating Nonnegative-X by extrapolation, where X \( \in { \) Least Square, Matrix Factoization, Tensor Factorization\(}\)

12-Feb-2019, Seminar, PANAMA, IRISA, Rennes, France
Accelerating Non-negative Matrix Factorization Algorithms using Extrapolation, and more

03-Oct-2018, EOS SeLMA seminar, ESAT KUL, Leuven, Belgium,
What is happening in non-negative matrix factorization : models and algorithms

27-Sep-2018, Sparse Days Meeting, CERFACS, Toulouse, France,
What is happening in non-negative matrix factorization
video

26-Sep-2018, IEEE WHISPERS, Amsterdam, Netherlands

1-July-2018, ISMP2018, Bordeaux, France

1-Feb-2018, ORBEL32, Liège, Belgium
Log-determinant Non-Negative Matrix Factorization via Successive Trace Approximation

28-Aug-2017, ALOP Summer School “Optimization in Machine Learning and Data Science”, University of Trier, Trier, Germany