Research Information System
IEEE SIGNAL PROCESSING LETTERS, vol.25, no.2, 2018 (Journal Indexed in SCI)
Recently, penalty functions promoting signals that are sparse within and across groups have been proposed. In this letter, we propose a modified penalty function that offers additional flexibility in forming groups. We study the properties of the penalty function and propose a new algorithm that can be used in energy minimization formulations that employ it. We demonstrate the effects of using the penalty function on a simple linear inverse problem.