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enuSpace-tensorflow Manual

SparseReshape

tensorflow C++ API

tensorflow::ops::SparseReshape

Reshapes a SparseTensor to represent values in a new dense shape.

Summary

This operation has the same semantics as reshape on the represented dense tensor. The input_indices are recomputed based on the requested new_shape.

If one component of new_shape is the special value -1, the size of that dimension is computed so that the total dense size remains constant. At most one component of new_shape can be -1. The number of dense elements implied by new_shape must be the same as the number of dense elements originally implied by input_shape.

Reshaping does not affect the order of values in the SparseTensor.

If the input tensor has rank R_in and N non-empty values, and new_shape has length R_out, then input_indices has shape [N, R_in], input_shape has length R_in, output_indices has shape [N, R_out], and output_shape has length R_out.

Arguments:

  • scope: A Scope object
  • input_indices: 2-D. N x R_in matrix with the indices of non-empty values in a SparseTensor.
  • input_shape: 1-D. R_in vector with the input SparseTensor’s dense shape.
  • new_shape: 1-D. R_out vector with the requested new dense shape.

Returns:

  • Output output_indices: 2-D. N x R_out matrix with the updated indices of non-empty values in the output SparseTensor.
  • Output output_shape: 1-D.R_out vector with the full dense shape of the output SparseTensor. This is the same as new_shape but with any -1 dimensions filled in.

SparseReshape block

Source link : https://github.com/EXPNUNI/enuSpaceTensorflow/blob/master/enuSpaceTensorflow/tf_sparse.cpp

Argument:

  • Scope scope : A Scope object (A scope is generated automatically each page. A scope is not connected.)
  • Input input_indices: connect Input node.
  • Input input_shape: connect Input node.
  • Input new_shape: connect Input node.

Return:

  • Output output: Output object of SparseReshape class object.

Result:

  • std::vector(Tensor) product_result : Returned object of executed result by calling session.

Using Method