2k citations · 6.6k across the 78 of their papers we have counts for
3 papers · 1 filter
Task-Driven Dictionary Learning
Julien Mairal, Francis Bach, Jean Ponce
Modeling data with linear combinations of a few elements from a learned dictionary has been the focus of much recent research in machine learning, neuroscience and signal processin…
Proximal Methods for Hierarchical Sparse Coding
Rodolphe Jenatton, Julien Mairal, Guillaume Obozinski +1
Sparse coding consists in representing signals as sparse linear combinations of atoms selected from a dictionary. We consider an extension of this framework where the atoms are fur…
Network Flow Algorithms for Structured Sparsity
Julien Mairal, Rodolphe Jenatton, Guillaume Obozinski +1
We consider a class of learning problems that involve a structured sparsity-inducing norm defined as the sum of -norms over groups of variables. Whereas a lot of effor…