diff options
Diffstat (limited to 'tensorflow/g3doc/api_docs/python/math_ops.md')
| -rw-r--r-- | tensorflow/g3doc/api_docs/python/math_ops.md | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/tensorflow/g3doc/api_docs/python/math_ops.md b/tensorflow/g3doc/api_docs/python/math_ops.md index 76636dc6f0..8a4a117907 100644 --- a/tensorflow/g3doc/api_docs/python/math_ops.md +++ b/tensorflow/g3doc/api_docs/python/math_ops.md @@ -3323,6 +3323,47 @@ If the sum is empty for a given segment ID `i`, `output[i] = 0`. `num_segments`. +- - - + +### `tf.unsorted_segment_max(data, segment_ids, num_segments, name=None)` {#unsorted_segment_max} + +Computes the Max along segments of a tensor. + +Read [the section on +Segmentation](../../api_docs/python/math_ops.md#segmentation) for an explanation +of segments. + +This operator is similar to the [unsorted segment sum operator](../../api_docs/python/math_ops.md#UnsortedSegmentSum). +Instead of computing the sum over segments, it computes the maximum +such that: + +\\(output_i = \max_j data_j\\) where max is over `j` such +that `segment_ids[j] == i`. + +If the maximum is empty for a given segment ID `i`, it outputs the smallest possible value for specific numeric type, + `output[i] = numeric_limits<T>::min()`. + +<div style="width:70%; margin:auto; margin-bottom:10px; margin-top:20px;"> +<img style="width:100%" src="../../images/UnsortedSegmentSum.png" alt> +</div> + +##### Args: + + +* <b>`data`</b>: A `Tensor`. Must be one of the following types: `float32`, `float64`, `int32`, `int64`, `uint8`, `int16`, `int8`, `uint16`, `half`. +* <b>`segment_ids`</b>: A `Tensor`. Must be one of the following types: `int32`, `int64`. + A 1-D tensor whose rank is equal to the rank of `data`'s + first dimension. +* <b>`num_segments`</b>: A `Tensor` of type `int32`. +* <b>`name`</b>: A name for the operation (optional). + +##### Returns: + + A `Tensor`. Has the same type as `data`. + Has same shape as data, except for dimension 0 which + has size `num_segments`. + + - - - |