A Family of Penalty Functions for Structured Sparsity. - Charles A. Micchelli; Jean Morales; Massimiliano Pontil (NIPS, 2010)

A General Framework for Structured Sparsity via Proximal Optimization. - Luca Baldassarre; Jean Morales; Andreas Argyriou; Massimiliano Pontil (AISTATS, 2012)

Regularizers for structured sparsity. - Charles A. Micchelli; Jean Morales; Massimiliano Pontil (Adv. Comput. Math., 2013)