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Description: Computes the connectionist temporal classification (CTC) loss gradient for the backward pass of .

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Each operator has calls. First, aclnnCtcLossBackwardGetWorkspaceSize is called to obtain the workspace size required for computation and the executor that contains the operator computation flow. Then, aclnnCtcLossBackward is called to perform computation.

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• Parameters

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• Returns

  [object Object]: status code. For details, see .

  The first-phase API implements input parameter verification. The following errors may be thrown.

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• Parameters

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• Returns

  [object Object]: status code. For details, see .

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None.

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The following example is for reference only. For details, see .