tf.raw_ops.SparseSegmentSumWithNumSegments  |  TensorFlow v2.16.1 (original) (raw)

tf.raw_ops.SparseSegmentSumWithNumSegments

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Computes the sum along sparse segments of a tensor.

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Compat aliases for migration

SeeMigration guide for more details.

tf.compat.v1.raw_ops.SparseSegmentSumWithNumSegments

tf.raw_ops.SparseSegmentSumWithNumSegments(
    data, indices, segment_ids, num_segments, sparse_gradient=False, name=None
)

Like SparseSegmentSum, but allows missing ids in segment_ids. If an id is missing, the output tensor at that position will be zeroed.

Readthe section on segmentationfor an explanation of segments.

For example:

c = tf.constant([[1,2,3,4], [-1,-2,-3,-4], [5,6,7,8]])

tf.sparse_segment_sum_with_num_segments(
    c, tf.constant([0, 1]), tf.constant([0, 0]), num_segments=3)
# => [[0 0 0 0]
#     [0 0 0 0]
#     [0 0 0 0]]

tf.sparse_segment_sum_with_num_segments(c,
                                        tf.constant([0, 1]),
                                        tf.constant([0, 2],
                                        num_segments=4))
# => [[ 1  2  3  4]
#     [ 0  0  0  0]
#     [-1 -2 -3 -4]
#     [ 0  0  0  0]]
Args
data A Tensor. Must be one of the following types: float32, float64, int32, uint8, int16, int8, int64, bfloat16, uint16, half, uint32, uint64.
indices A Tensor. Must be one of the following types: int32, int64. A 1-D tensor. Has same rank as segment_ids.
segment_ids A Tensor. Must be one of the following types: int32, int64. A 1-D tensor. Values should be sorted and can be repeated.
num_segments A Tensor. Must be one of the following types: int32, int64. Should equal the number of distinct segment IDs.
sparse_gradient An optional bool. Defaults to False.
name A name for the operation (optional).
Returns
A Tensor. Has the same type as data.