Research interests: Low-rank matrix approximations, nonnegative matrix factorization, continuous and discrete optimization, numerical linear algebra, computational complexity, machine learning, data mining, hyperspectral imaging, signal processing. 

*News*

• Olivier Vu Thanh [thesis] and Hazan Daglayan [thesis] have successfully defended their PhD (October 24 & January 25). Congratulations to them! 

• My book on NMF is available online.  The Matlab code of the book is available on gitlab. A course on NMF (slides + exercices) is available from here. 

*Where I'll be at?*

• 11th Workshop on Matrix Equations and Tensor Techniques (METT XI), 7-9 January 2026, Leuven, Belgium. 

• Foundations of Computational Mathematics (FoCM), Workshop on Numerical Linear Algebra, 8-18 July 2026, Vienna, Austria. 

• European Signal Processing Conference (EUSIPCO), 31 August - 4 September 2026, Bruges, Belgium.