# tensorflow::ops::ResourceApplyPowerSign

`#include <training_ops.h>`

Update '\*var' according to the AddSign update.

## Summary

m_t \<- beta1 \* m_{t-1} + (1 - beta1) \* g update \<- exp(logbase \* sign_decay \* sign(g) \* sign(m_t)) \* g variable \<- variable - lr_t \* update

Arguments:

- scope: A [Scope](https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/scope#classtensorflow_1_1_scope) object
- var: Should be from a Variable().
- m: Should be from a Variable().
- lr: Scaling factor. Must be a scalar.
- logbase: Must be a scalar.
- sign_decay: Must be a scalar.
- beta: Must be a scalar.
- grad: The gradient.

<br />

Optional attributes (see `https://www.tensorflow.org/versions/r1.15/api_docs/cc/struct/tensorflow/ops/resource-apply-power-sign/attrs#structtensorflow_1_1ops_1_1_resource_apply_power_sign_1_1_attrs`):

- use_locking: If `True`, updating of the var and m tensors is protected by a lock; otherwise the behavior is undefined, but may exhibit less contention.

<br />

Returns:

- the created `https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/operation#classtensorflow_1_1_operation`

<br />

| ### Constructors and Destructors ||
|---|---|
| `https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/ops/resource-apply-power-sign#classtensorflow_1_1ops_1_1_resource_apply_power_sign_1a64fbb5964bf72c2c091db1d74f7e9718(const ::https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/scope#classtensorflow_1_1_scope & scope, ::https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input var, ::https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input m, ::https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input lr, ::https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input logbase, ::https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input sign_decay, ::https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input beta, ::https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input grad)` ||
| `https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/ops/resource-apply-power-sign#classtensorflow_1_1ops_1_1_resource_apply_power_sign_1aafa307bbfc680cb368b9f28075ec4896(const ::https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/scope#classtensorflow_1_1_scope & scope, ::https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input var, ::https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input m, ::https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input lr, ::https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input logbase, ::https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input sign_decay, ::https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input beta, ::https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input grad, const https://www.tensorflow.org/versions/r1.15/api_docs/cc/struct/tensorflow/ops/resource-apply-power-sign/attrs#structtensorflow_1_1ops_1_1_resource_apply_power_sign_1_1_attrs & attrs)` ||

| ### Public attributes ||
|---|---|
| `https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/ops/resource-apply-power-sign#classtensorflow_1_1ops_1_1_resource_apply_power_sign_1aec6d0cf32a5d557c16f0b7e57a8ce017` | `https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/operation#classtensorflow_1_1_operation` |

| ### Public functions ||
|---|---|
| `https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/ops/resource-apply-power-sign#classtensorflow_1_1ops_1_1_resource_apply_power_sign_1a371be2a4d0025d896cf612387d55d2d4() const ` | ` `` ` |

| ### Public static functions ||
|---|---|
| `https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/ops/resource-apply-power-sign#classtensorflow_1_1ops_1_1_resource_apply_power_sign_1a242ec9b418fd89da23d52d9a3ddef249(bool x)` | `https://www.tensorflow.org/versions/r1.15/api_docs/cc/struct/tensorflow/ops/resource-apply-power-sign/attrs#structtensorflow_1_1ops_1_1_resource_apply_power_sign_1_1_attrs` |

| ### Structs ||
|---|---|
| [tensorflow::ops::ResourceApplyPowerSign::Attrs](https://www.tensorflow.org/versions/r1.15/api_docs/cc/struct/tensorflow/ops/resource-apply-power-sign/attrs) | Optional attribute setters for [ResourceApplyPowerSign](https://www.tensorflow.org/versions/r1.15/api_docs/cc/class/tensorflow/ops/resource-apply-power-sign#classtensorflow_1_1ops_1_1_resource_apply_power_sign). |

## Public attributes

### operation

```
Operation operation
```

## Public functions

### ResourceApplyPowerSign

```
 ResourceApplyPowerSign(
  const ::tensorflow::Scope & scope,
  ::tensorflow::Input var,
  ::tensorflow::Input m,
  ::tensorflow::Input lr,
  ::tensorflow::Input logbase,
  ::tensorflow::Input sign_decay,
  ::tensorflow::Input beta,
  ::tensorflow::Input grad
)
```

### ResourceApplyPowerSign

```
 ResourceApplyPowerSign(
  const ::tensorflow::Scope & scope,
  ::tensorflow::Input var,
  ::tensorflow::Input m,
  ::tensorflow::Input lr,
  ::tensorflow::Input logbase,
  ::tensorflow::Input sign_decay,
  ::tensorflow::Input beta,
  ::tensorflow::Input grad,
  const ResourceApplyPowerSign::Attrs & attrs
)
```

### operator::tensorflow::Operation

```
 operator::tensorflow::Operation() const 
```

## Public static functions

### UseLocking

```
Attrs UseLocking(
  bool x
)
```