# File lib/ai4r/som/two_phase_layer.rb, line 72 def learning_rate_decay(epoch) if epoch < @phase_one @lr -= @delta_lr return @lr elsif epoch == @phase_one @lr = @phase_one_learning_rate @delta_lr = (@phase_one_learning_rate - @phase_two_learning_rate)/@phase_two return @lr else @lr -= @delta_lr end end