Bridge-type nonconvex sparse estimators can be optimized pathwise with accelerated proximal gradient and PALM algorithms, with convergence to critical points and pointwise path consistency under basin-of-attraction assumptions.
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Pathwise optimization for bridge-type estimators and its applications
Bridge-type nonconvex sparse estimators can be optimized pathwise with accelerated proximal gradient and PALM algorithms, with convergence to critical points and pointwise path consistency under basin-of-attraction assumptions.