src.model.deeplearn.optimizer.centralized_adagrad
Classes
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Stochastic gradient descent with parameter-specific learning rates. |
- class src.model.deeplearn.optimizer.centralized_adagrad.CentralizedAdagrad(learning_rate=0.001, initial_accumulator_value=0.1, epsilon=1e-07, weight_decay=None, clipnorm=None, clipvalue=None, global_clipnorm=None, use_ema=False, ema_momentum=0.99, ema_overwrite_frequency=None, loss_scale_factor=None, gradient_accumulation_steps=None, name='adagrad', **kwargs)
Stochastic gradient descent with parameter-specific learning rates. The optimizer behaves exactly like
keras.optimizers.Adagradbut its gradients are centered.- update_step(gradient, variable, learning_rate)
Modify the gradients of the backbone optimizer by centering them before applying them to fit the model’s parameters.
See
CentralizedAdam.center_gradients().- Returns:
Nothing at all, but the parameters are updated with the centered gradients instead of the original ones.