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# BNNSLayerParametersNormalization

A structure that contains the parameters of a normalization layer.

```
struct BNNSLayerParametersNormalization
```

## Topics

### Initializers

[`init(i_desc:o_desc:beta_desc:gamma_desc:moving_mean_desc:moving_variance_desc:momentum:epsilon:activation:num_groups:normalization_axis:)`](/documentation/Accelerate/BNNSLayerParametersNormalization/init(i_desc:o_desc:beta_desc:gamma_desc:moving_mean_desc:moving_variance_desc:momentum:epsilon:activation:num_groups:normalization_axis:))

Returns a new normalization layer parameters structure from the specified parameters.

[`init()`](/documentation/Accelerate/BNNSLayerParametersNormalization/init())

Returns a new normalization layer parameters structure.

### Instance Properties

[`i_desc`](/documentation/Accelerate/BNNSLayerParametersNormalization/i_desc)

The descriptor of the input.

[`o_desc`](/documentation/Accelerate/BNNSLayerParametersNormalization/o_desc)

The descriptor of the output.

[`beta_desc`](/documentation/Accelerate/BNNSLayerParametersNormalization/beta_desc)

The descriptor of the beta or bias.

[`gamma_desc`](/documentation/Accelerate/BNNSLayerParametersNormalization/gamma_desc)

The descriptor of the gamma or scale.

[`moving_mean_desc`](/documentation/Accelerate/BNNSLayerParametersNormalization/moving_mean_desc)

The descriptor of the moving mean.

[`moving_variance_desc`](/documentation/Accelerate/BNNSLayerParametersNormalization/moving_variance_desc)

The descriptor of the moving variance.

[`momentum`](/documentation/Accelerate/BNNSLayerParametersNormalization/momentum)

A value, between 0 and 1, the normalization operation uses to update the moving mean and moving variance during training.

[`epsilon`](/documentation/Accelerate/BNNSLayerParametersNormalization/epsilon)

The epsilon in the computation of the standard deviation.

[`activation`](/documentation/Accelerate/BNNSLayerParametersNormalization/activation)

The activation function that the layer applies to the output.

[`num_groups`](/documentation/Accelerate/BNNSLayerParametersNormalization/num_groups)

The number of groups over which the layer computes normalization statistics.

[`normalization_axis`](/documentation/Accelerate/BNNSLayerParametersNormalization/normalization_axis)

The axis on which a layer normalization operation starts normalization.


---

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