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tensorflow :: ops :: SparseSegmentSumWithNumSegments
#include <math_ops.h> Calcula a soma ao longo de segmentos esparsos de um tensor.
Resumo
Como SparseSegmentSum , mas permite ids ausentes em segment_ids . Se um id estiver incorreto, o tensor de output naquela posição será zerado.
Leia a seção sobre segmentação para obter uma explicação dos segmentos.
Por exemplo:
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]]
Argumentos:
- escopo: um objeto Scope
- índices: um tensor 1-D. Tem a mesma classificação que
segment_ids . - segment_ids: um tensor 1-D. Os valores devem ser classificados e podem ser repetidos.
- num_segments: deve ser igual ao número de IDs de segmento distintos.
Retorna:
-
Output : tem a mesma forma dos dados, exceto para a dimensão 0, que tem o tamanho num_segments .
Atributos públicos
Funções públicas
nó
::tensorflow::Node * node() const
operator::tensorflow::Input() const
operador :: tensorflow :: Saída
operator::tensorflow::Output() const
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Última atualização 2020-04-20 UTC.
[null,null,["Última atualização 2020-04-20 UTC."],[],[],null,["# tensorflow::ops::SparseSegmentSumWithNumSegments Class Reference\n\ntensorflow::ops::SparseSegmentSumWithNumSegments\n================================================\n\n`#include \u003cmath_ops.h\u003e`\n\nComputes the sum along sparse segments of a tensor.\n\nSummary\n-------\n\nLike [SparseSegmentSum](/versions/r1.15/api_docs/cc/class/tensorflow/ops/sparse-segment-sum#classtensorflow_1_1ops_1_1_sparse_segment_sum), but allows missing ids in `segment_ids`. If an id is misisng, the `output` tensor at that position will be zeroed.\n\nRead [the section on segmentation](https://tensorflow.org/api_docs/python/tf/sparse#Segmentation) for an explanation of segments.\n\nFor example:\n\n\n```gdscript\nc = tf.constant([[1,2,3,4], [-1,-2,-3,-4], [5,6,7,8]])\n```\n\n\u003cbr /\u003e\n\n\n```gdscript\ntf.sparse_segment_sum_with_num_segments(\n c, tf.constant([0, 1]), tf.constant([0, 0]), num_segments=3)\n# =\u003e [[0 0 0 0]\n# [0 0 0 0]\n# [0 0 0 0]]\n```\n\n\u003cbr /\u003e\n\n\n```gdscript\ntf.sparse_segment_sum_with_num_segments(c,\n tf.constant([0, 1]),\n tf.constant([0, 2],\n num_segments=4))\n# =\u003e [[ 1 2 3 4]\n# [ 0 0 0 0]\n# [-1 -2 -3 -4]\n# [ 0 0 0 0]]\n```\n\n\u003cbr /\u003e\n\nArguments:\n\n- scope: A [Scope](/versions/r1.15/api_docs/cc/class/tensorflow/scope#classtensorflow_1_1_scope) object\n- indices: A 1-D tensor. Has same rank as `segment_ids`.\n- segment_ids: A 1-D tensor. Values should be sorted and can be repeated.\n- num_segments: Should equal the number of distinct segment IDs.\n\n\u003cbr /\u003e\n\nReturns:\n\n- [Output](/versions/r1.15/api_docs/cc/class/tensorflow/output#classtensorflow_1_1_output): Has same shape as data, except for dimension 0 which has size `num_segments`.\n\n\u003cbr /\u003e\n\n| ### Constructors and Destructors ||\n|---|---|\n| [SparseSegmentSumWithNumSegments](#classtensorflow_1_1ops_1_1_sparse_segment_sum_with_num_segments_1aa42ca6fe6f82686ab6e7bf1696c6cf95)`(const ::`[tensorflow::Scope](/versions/r1.15/api_docs/cc/class/tensorflow/scope#classtensorflow_1_1_scope)` & scope, ::`[tensorflow::Input](/versions/r1.15/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input)` data, ::`[tensorflow::Input](/versions/r1.15/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input)` indices, ::`[tensorflow::Input](/versions/r1.15/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input)` segment_ids, ::`[tensorflow::Input](/versions/r1.15/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input)` num_segments)` ||\n\n| ### Public attributes ||\n|------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------|\n| [operation](#classtensorflow_1_1ops_1_1_sparse_segment_sum_with_num_segments_1aef731be5257efe05dd4fcab3b8bc1a97) | [Operation](/versions/r1.15/api_docs/cc/class/tensorflow/operation#classtensorflow_1_1_operation) |\n| [output](#classtensorflow_1_1ops_1_1_sparse_segment_sum_with_num_segments_1a0268bacaeeeaa16b2034d2bbbce8fbe4) | `::`[tensorflow::Output](/versions/r1.15/api_docs/cc/class/tensorflow/output#classtensorflow_1_1_output) |\n\n| ### Public functions ||\n|------------------------------------------------------------------------------------------------------------------------------------------------|------------------------|\n| [node](#classtensorflow_1_1ops_1_1_sparse_segment_sum_with_num_segments_1a26167428eac960c8c69c07839a55d289)`() const ` | `::tensorflow::Node *` |\n| [operator::tensorflow::Input](#classtensorflow_1_1ops_1_1_sparse_segment_sum_with_num_segments_1a59838fffe06404d59d3a86d7a1a664ab)`() const ` | ` ` ` ` |\n| [operator::tensorflow::Output](#classtensorflow_1_1ops_1_1_sparse_segment_sum_with_num_segments_1a0540eaea9f382d555400bcda1f86c781)`() const ` | ` ` ` ` |\n\nPublic attributes\n-----------------\n\n### operation\n\n```text\nOperation operation\n``` \n\n### output\n\n```text\n::tensorflow::Output output\n``` \n\nPublic functions\n----------------\n\n### SparseSegmentSumWithNumSegments\n\n```gdscript\n SparseSegmentSumWithNumSegments(\n const ::tensorflow::Scope & scope,\n ::tensorflow::Input data,\n ::tensorflow::Input indices,\n ::tensorflow::Input segment_ids,\n ::tensorflow::Input num_segments\n)\n``` \n\n### node\n\n```gdscript\n::tensorflow::Node * node() const \n``` \n\n### operator::tensorflow::Input\n\n```gdscript\n operator::tensorflow::Input() const \n``` \n\n### operator::tensorflow::Output\n\n```gdscript\n operator::tensorflow::Output() const \n```"]]
