org.tensorflow.op.core

Class UnsortedSegmentSum<T>

java.lang.Object

org.tensorflow.op.PrimitiveOp

org.tensorflow.op.core.UnsortedSegmentSum<T>

Type Parameters:

T - data type for output() output

All Implemented Interfaces:

Op, Operand<T>

@Operator
public final class UnsortedSegmentSum<T>
extends PrimitiveOp
implements Operand<T>

Computes the sum along segments of a tensor.

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

Computes a tensor such that \\(output[i] = \sum_{j...} data[j...]\\) where the sum is over tuples `j...` such that `segment_ids[j...] == i`. Unlike `SegmentSum`, `segment_ids` need not be sorted and need not cover all values in the full range of valid values.

If the sum is empty for a given segment ID `i`, `output[i] = 0`. If the given segment ID `i` is negative, the value is dropped and will not be added to the sum of the segment.

`num_segments` should equal the number of distinct segment IDs.

Field Summary

Fields inherited from class org.tensorflow.op.PrimitiveOp

operation

Method Summary

Modifier and Type	Method and Description
Output<T>	asOutput() Returns the symbolic handle of a tensor.
static <T,U extends Number,V extends Number> UnsortedSegmentSum<T>	create(Scope scope, Operand<T> data, Operand<U> segmentIds, Operand<V> numSegments) Factory method to create a class to wrap a new UnsortedSegmentSum operation to the graph.
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`.

Methods inherited from class org.tensorflow.op.PrimitiveOp

equals, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

create

public static <T,U extends Number,V extends Number> UnsortedSegmentSum<T> create(Scope scope,
                                                                                 Operand<T> data,
                                                                                 Operand<U> segmentIds,
                                                                                 Operand<V> numSegments)

Factory method to create a class to wrap a new UnsortedSegmentSum operation to the graph.

Parameters:

scope - current graph scope

data -

segmentIds - A tensor whose shape is a prefix of `data.shape`.

numSegments -

Returns:

a new instance of UnsortedSegmentSum

output

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`.

asOutput

public Output<T> asOutput()

Description copied from interface: Operand

Returns the symbolic handle of a 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.

Specified by:

asOutput in interface Operand<T>

See Also:

OperationBuilder.addInput(Output)