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# torch.optim.Optimizer.add_param_group

Optimizer.add_param_group(param_group)

  Add a param group to the `Optimizer` s param_groups.

  This can be useful when fine tuning a pre-trained network as frozen layers can be made trainable and added to the `Optimizer` as training progresses.

  Parameters:

    param_group (dict) – Specifies what Tensors should be optimized along with group specific optimization options.

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