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!13398 complement the docs of CTCLoss operator. 

From: @wangshuide2020
Reviewed-by: @liangchenghui,@wuxuejian
Signed-off-by: @liangchenghui
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mindspore-ci-bot 2021-03-17 08:54:36 +08:00 committed by Gitee
parent c69d72f840 344280adb8
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mindspore/ops/operations/nn_ops.py
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@ -7185,6 +7185,9 @@ class CTCLoss(PrimitiveWithInfer):
""" """
Calculates the CTC (Connectionist Temporal Classification) loss and the gradient. Calculates the CTC (Connectionist Temporal Classification) loss and the gradient.
The CTC algorithm is proposed in `Connectionist Temporal Classification: Labeling Unsegmented Sequence Data with
Recurrent Neural Networks <http://www.cs.toronto.edu/~graves/icml_2006.pdf>`_.
Args: Args:
preprocess_collapse_repeated (bool): If true, repeated labels will be collapsed prior to the CTC calculation. preprocess_collapse_repeated (bool): If true, repeated labels will be collapsed prior to the CTC calculation.
Default: False. Default: False.