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applyBackward(batchSize:input:output:outputGradient:generatingInputGradient:generatingWeightsGradient:generatingBiasGradient:)

Applies the layer backward to generate input gradients.

Declaration

func applyBackward(batchSize: Int, input: BNNSNDArrayDescriptor, output: BNNSNDArrayDescriptor, outputGradient: BNNSNDArrayDescriptor, generatingInputGradient inputGradient: BNNSNDArrayDescriptor, generatingWeightsGradient weightsGradient: BNNSNDArrayDescriptor? = nil, generatingBiasGradient biasGradient: BNNSNDArrayDescriptor? = nil) throws

Parameters

  • batchSize:

    The number of input-output pairs.

  • input:

    The descriptor of the input.

  • output:

    The descriptor of the output.

  • outputGradient:

    The descriptor of the output gradient.

  • inputGradient:

    The descriptor of the input gradient.

  • weightsGradient:

    The descriptor of the weights gradient.

  • biasGradient:

    The descriptor of the bias gradient.