no code implementations • 10 Mar 2022 • Yaghoub Rahimi, Sung Ha Kang, Yifei Lou
Motivated by re-weighted $\ell_1$ approaches for sparse recovery, we propose a lifted $\ell_1$ (LL1) regularization which is a generalized form of several popular regularizations in the literature.
no code implementations • 20 Dec 2018 • Yaghoub Rahimi, Chao Wang, Hongbo Dong, Yifei Lou
In this paper, we study the ratio of the $L_1 $ and $L_2 $ norms, denoted as $L_1/L_2$, to promote sparsity.