How to use 'from keras.optimizers import adam' in Python
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146 def get_optimizer(model, opt, lr=None, adam_alpha=None, adam_beta1=None, 147 adam_beta2=None, adam_eps=None, weight_decay=None): 148 if opt == 'MomentumSGD': 149 optimizer = optimizers.MomentumSGD(lr=lr, momentum=0.9) 150 elif opt == 'Adam': 151 optimizer = optimizers.Adam( 152 alpha=adam_alpha, beta1=adam_beta1, 153 beta2=adam_beta2, eps=adam_eps) 154 elif opt == 'AdaGrad': 155 optimizer = optimizers.AdaGrad(lr=lr) 156 elif opt == 'RMSprop': 157 optimizer = optimizers.RMSprop(lr=lr) 158 else: 159 raise Exception('No optimizer is selected') 160 161 # The first model as the master model 162 optimizer.setup(model) 163 if opt == 'MomentumSGD': 164 optimizer.add_hook( 165 chainer.optimizer.WeightDecay(weight_decay)) 166 167 return optimizer