# tensorflow::ops::SparseFillEmptyRowsGrad Class Reference

# tensorflow::ops::SparseFillEmptyRowsGrad

`#include <sparse_ops.h>`

The gradient of [SparseFillEmptyRows](https://www.tensorflow.org/versions/r2.7/api_docs/cc/class/tensorflow/ops/sparse-fill-empty-rows#classtensorflow_1_1ops_1_1_sparse_fill_empty_rows).

## Summary

Takes vectors reverse_index_map, shaped `[N]`, and grad_values, shaped `[N_full]`, where `N_full >= N` and copies data into either `d_values` or `d_default_value`. Here `d_values` is shaped `[N]` and `d_default_value` is a scalar.

d_values\[j\] = grad_values\[reverse_index_map\[j\]\] d_default_value = sum_{k : 0 .. N_full - 1} ( grad_values\[k\] \* 1{k not in reverse_index_map})

Args:

- scope: A [Scope](https://www.tensorflow.org/versions/r2.7/api_docs/cc/class/tensorflow/scope#classtensorflow_1_1_scope) object
- reverse_index_map: 1-D. The reverse index map from [SparseFillEmptyRows](https://www.tensorflow.org/versions/r2.7/api_docs/cc/class/tensorflow/ops/sparse-fill-empty-rows#classtensorflow_1_1ops_1_1_sparse_fill_empty_rows).
- grad_values: 1-D. The gradients from backprop.

<br />

Returns:

- `https://www.tensorflow.org/versions/r2.7/api_docs/cc/class/tensorflow/output#classtensorflow_1_1_output` d_values: 1-D. The backprop into values.
- `https://www.tensorflow.org/versions/r2.7/api_docs/cc/class/tensorflow/output#classtensorflow_1_1_output` d_default_value: 0-D. The backprop into default_value.

<br />

| ### Constructors and Destructors ||
|---|---|
| `https://www.tensorflow.org/versions/r2.7/api_docs/cc/class/tensorflow/ops/sparse-fill-empty-rows-grad#classtensorflow_1_1ops_1_1_sparse_fill_empty_rows_grad_1ada5dd8406dc685e9cef6fb62d22ef08a(const ::https://www.tensorflow.org/versions/r2.7/api_docs/cc/class/tensorflow/scope#classtensorflow_1_1_scope & scope, ::https://www.tensorflow.org/versions/r2.7/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input reverse_index_map, ::https://www.tensorflow.org/versions/r2.7/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input grad_values)` ||

| ### Public attributes ||
|---|---|
| `https://www.tensorflow.org/versions/r2.7/api_docs/cc/class/tensorflow/ops/sparse-fill-empty-rows-grad#classtensorflow_1_1ops_1_1_sparse_fill_empty_rows_grad_1a390e699bba2fa2de13aa830fa180150b` | `::https://www.tensorflow.org/versions/r2.7/api_docs/cc/class/tensorflow/output#classtensorflow_1_1_output` |
| `https://www.tensorflow.org/versions/r2.7/api_docs/cc/class/tensorflow/ops/sparse-fill-empty-rows-grad#classtensorflow_1_1ops_1_1_sparse_fill_empty_rows_grad_1a13ae288ea1b435bc21beaf155bb49a66` | `::https://www.tensorflow.org/versions/r2.7/api_docs/cc/class/tensorflow/output#classtensorflow_1_1_output` |
| `https://www.tensorflow.org/versions/r2.7/api_docs/cc/class/tensorflow/ops/sparse-fill-empty-rows-grad#classtensorflow_1_1ops_1_1_sparse_fill_empty_rows_grad_1a5d59df27d9ed5efa484e261d96d2fb65` | `https://www.tensorflow.org/versions/r2.7/api_docs/cc/class/tensorflow/operation#classtensorflow_1_1_operation` |

## Public attributes

### d_default_value

```
::tensorflow::Output d_default_value
```

### d_values

```
::tensorflow::Output d_values
```

### operation

```
Operation operation
```

## Public functions

### SparseFillEmptyRowsGrad

```
 SparseFillEmptyRowsGrad(
  const ::tensorflow::Scope & scope,
  ::tensorflow::Input reverse_index_map,
  ::tensorflow::Input grad_values
)
```