Sparsity Within and Across Overlapping Groups


Bayram İ.

IEEE SIGNAL PROCESSING LETTERS, cilt.25, 2018 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 25 Konu: 2
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1109/lsp.2017.2785183
  • Dergi Adı: IEEE SIGNAL PROCESSING LETTERS

Özet

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.