model.py 文件源码

def clone_optimizer(optimizer):
    if type(optimizer) is str:
        return optimizers.get(optimizer)
    # Requires Keras 1.0.7 since get_config has breaking changes.
    params = dict([(k, v) for k, v in optimizer.get_config().items()])
    config = {
        'class_name': optimizer.__class__.__name__,
        'config': params,
    }
    if hasattr(optimizers, 'optimizer_from_config'):
        # COMPATIBILITY: Keras < 2.0
        clone = optimizers.optimizer_from_config(config)
    else:
        clone = optimizers.deserialize(config)
    return clone