Zerothorder method is a class of powerful optimization tool for many machine learning problems because it only needs function values (not gradient) in the optimization. Recently, although many zerothorder methods have been developed, these approaches still exist one of two main drawbacks: 1) high function query complexity; 2) not being well suitable for solving the problems with complex penalties and constraints... (read more)
PDFMETHOD  TYPE  

ADMM

Optimization 