ation loss.
                                 If zero or None, no reduction will take place
        reduce_factor(int):      LR is reduced by this factor (e.g., 2 = 1/2  = 0.5)
        monitor (str):           Value to monitor when reducing LR
        max_momentum(float):     maximum momentum when momentum is cycled
                                 If both max_momentum and min_momentum is None,
                                 default momentum for Adam is used.
                                 (only used if 