Sparse Recovery via ${\ell }_p^p/{\ell }_q^p$ Ratio Minimization: Theory and Algorithm

Lang Yu, Nan-jing Huang

The constrained ${\ell }_p^p/{\ell }_q^p$ ratio model is scale invariant and is therefore attractive for sparse signal recovery. However, its nonconvex, nonsmooth, and fractional structu…