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# BNNSOptimizerSGDMomentumFields

A structure that contains the fields of a stochastic gradient descent (SGD) with momentum optimizer.

```
struct BNNSOptimizerSGDMomentumFields
```

## Topics

### Initializers

[`init(learning_rate:momentum:gradient_scale:regularization_scale:clip_gradients:clip_gradients_min:clip_gradients_max:nesterov:regularization_func:sgd_momentum_variant:)`](/documentation/Accelerate/BNNSOptimizerSGDMomentumFields/init(learning_rate:momentum:gradient_scale:regularization_scale:clip_gradients:clip_gradients_min:clip_gradients_max:nesterov:regularization_func:sgd_momentum_variant:))

Returns a new SGD with momentum optimizer fields structure from the specified parameters.

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

Returns a new SGD with momentum optimizer fields structure.

### Instance Properties

[`learning_rate`](/documentation/Accelerate/BNNSOptimizerSGDMomentumFields/learning_rate)

A value that specifies the learning rate.

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

The rate of momentum decay.

[`gradient_scale`](/documentation/Accelerate/BNNSOptimizerSGDMomentumFields/gradient_scale)

A value that specifies the gradient scaling factor.

[`regularization_scale`](/documentation/Accelerate/BNNSOptimizerSGDMomentumFields/regularization_scale)

A value that specifies the regularization scaling factor.

[`clip_gradients`](/documentation/Accelerate/BNNSOptimizerSGDMomentumFields/clip_gradients)

A Boolean value that specifies whether to clip the gradient between minimum and maximum values.

[`clip_gradients_min`](/documentation/Accelerate/BNNSOptimizerSGDMomentumFields/clip_gradients_min)

The values for the minimum gradient.

[`clip_gradients_max`](/documentation/Accelerate/BNNSOptimizerSGDMomentumFields/clip_gradients_max)

The values for the maximum gradient.

[`nesterov`](/documentation/Accelerate/BNNSOptimizerSGDMomentumFields/nesterov)

A Boolean value that specifies whether to use Nesterov momentum update.

[`regularization_func`](/documentation/Accelerate/BNNSOptimizerSGDMomentumFields/regularization_func)

The variable that specifies the regularization function.

[`sgd_momentum_variant`](/documentation/Accelerate/BNNSOptimizerSGDMomentumFields/sgd_momentum_variant)

The variable that specifies the momentum variant.


---

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