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. 

For my publications, see Google scholar, Scopus, arXiv, ORCID, and the UMONS website with the PDFs. 

*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 ?*

• Organization of the SOCN study day, 26 September 2025, Mons.