tensorflow:: ops:: SparseCrossHashed
#include <sparse_ops.h>
Generates sparse cross from a list of sparse and dense tensors.
Summary
The op takes two lists, one of 2D SparseTensor
and one of 2D Tensor
, each representing features of one feature column. It outputs a 2D SparseTensor
with the batchwise crosses of these features.
For example, if the inputs are
inputs[0]: SparseTensor with shape = [2, 2] [0, 0]: "a" [1, 0]: "b" [1, 1]: "c" inputs[1]: SparseTensor with shape = [2, 1] [0, 0]: "d" [1, 0]: "e" inputs[2]: Tensor [["f"], ["g"]]
then the output will be
shape = [2, 2] [0, 0]: "a_X_d_X_f" [1, 0]: "b_X_e_X_g" [1, 1]: "c_X_e_X_g"
if hashed_output=true then the output will be
shape = [2, 2] [0, 0]: FingerprintCat64( Fingerprint64("f"), FingerprintCat64( Fingerprint64("d"), Fingerprint64("a"))) [1, 0]: FingerprintCat64( Fingerprint64("g"), FingerprintCat64( Fingerprint64("e"), Fingerprint64("b"))) [1, 1]: FingerprintCat64( Fingerprint64("g"), FingerprintCat64( Fingerprint64("e"), Fingerprint64("c")))
Args:
- scope: A Scope object
- indices: 2-D. Indices of each input
SparseTensor
. - values: 1-D. values of each
SparseTensor
. - shapes: 1-D. Shapes of each
SparseTensor
. - dense_inputs: 2-D. Columns represented by dense
Tensor
. - num_buckets: It is used if hashed_output is true. output = hashed_valuenum_buckets if num_buckets > 0 else hashed_value.
- strong_hash: boolean, if true, siphash with salt will be used instead of farmhash.
- salt: Specify the salt that will be used by the siphash function.
Returns:
Output
output_indices: 2-D. Indices of the concatenatedSparseTensor
.Output
output_values: 1-D. Non-empty values of the concatenated or hashedSparseTensor
.Output
output_shape: 1-D. Shape of the concatenatedSparseTensor
.
Constructors and Destructors |
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SparseCrossHashed(const ::tensorflow::Scope & scope, ::tensorflow::InputList indices, ::tensorflow::InputList values, ::tensorflow::InputList shapes, ::tensorflow::InputList dense_inputs, ::tensorflow::Input num_buckets, ::tensorflow::Input strong_hash, ::tensorflow::Input salt)
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Public attributes |
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operation
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output_indices
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output_shape
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output_values
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Public attributes
operation
Operation operation
output_indices
::tensorflow::Output output_indices
output_shape
::tensorflow::Output output_shape
output_values
::tensorflow::Output output_values
Public functions
SparseCrossHashed
SparseCrossHashed( const ::tensorflow::Scope & scope, ::tensorflow::InputList indices, ::tensorflow::InputList values, ::tensorflow::InputList shapes, ::tensorflow::InputList dense_inputs, ::tensorflow::Input num_buckets, ::tensorflow::Input strong_hash, ::tensorflow::Input salt )