UnsortedSegmentProd

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public final class UnsortedSegmentProd

Computes the product along segments of a tensor.

Read [the section on segmentation](https://tensorflow.org/api_docs/python/tf/math#Segmentation) for an explanation of segments.

This operator is similar to the unsorted segment sum operator found [(here)](../../../api_docs/python/math_ops.md#UnsortedSegmentSum). Instead of computing the sum over segments, it computes the product of all entries belonging to a segment such that:

\\(output_i = \prod_{j...} data[j...]\\) where the product is over tuples `j...` such that `segment_ids[j...] == i`.

For example:

c = tf.constant([[1,2,3,4], [5,6,7,8], [4,3,2,1]])
 tf.unsorted_segment_prod(c, tf.constant([0, 1, 0]), num_segments=2)
 # ==> [[ 4,  6, 6, 4],
 #       [5,  6, 7, 8]]
 
If there is no entry for a given segment ID `i`, it outputs 1.

If the given segment ID `i` is negative, then the corresponding value is dropped, and will not be included in the result.

Constants

String OP_NAME The name of this op, as known by TensorFlow core engine

Public Methods

Output<T>
asOutput()
Returns the symbolic handle of the tensor.
static <T extends TType> UnsortedSegmentProd<T>
create(Scope scope, Operand<T> data, Operand<? extends TNumber> segmentIds, Operand<? extends TNumber> numSegments)
Factory method to create a class wrapping a new UnsortedSegmentProd operation.
Output<T>
output()
Has same shape as data, except for the first `segment_ids.rank` dimensions, which are replaced with a single dimension which has size `num_segments`.

Inherited Methods

Constants

public static final String OP_NAME

The name of this op, as known by TensorFlow core engine

Constant Value: "UnsortedSegmentProd"

Public Methods

public Output<T> asOutput ()

Returns the symbolic handle of the tensor.

Inputs to TensorFlow operations are outputs of another TensorFlow operation. This method is used to obtain a symbolic handle that represents the computation of the input.

public static UnsortedSegmentProd<T> create (Scope scope, Operand<T> data, Operand<? extends TNumber> segmentIds, Operand<? extends TNumber> numSegments)

Factory method to create a class wrapping a new UnsortedSegmentProd operation.

Parameters
scope current scope
segmentIds A tensor whose shape is a prefix of `data.shape`.
Returns
  • a new instance of UnsortedSegmentProd

public Output<T> output ()

Has same shape as data, except for the first `segment_ids.rank` dimensions, which are replaced with a single dimension which has size `num_segments`.