One of the main drawbacks of the subgradient method is
the tuning process to determine the sequence of steplengths. In this
paper, the radar subgradient method, a heuristic method designed
to compute a tuning-free subgradient steplength, is geometrically
motivated and algebraically deduced. The unit commitment problem,
which arises in the electrical engineering field, is used to compare the
performance of the subgradient method with the new radar subgradient
Beltran, C.; Heredia, F.-Javier. An effective line search for the subgradient method. "Journal of optimization theory and applications", Abril 2005, vol. 125, núm. 1, p. 1-18.