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tf.sparse.expand_dims

TensorFlow 2 version View source on GitHub

Inserts a dimension of 1 into a tensor's shape.

Given a tensor sp_input, this operation inserts a dimension of 1 at the dimension index axis of sp_input's shape. The dimension index axis starts at zero; if you specify a negative number for axis it is counted backwards from the end.

sp_input A SparseTensor.
axis 0-D (scalar). Specifies the dimension index at which to expand the shape of input. Must be in the range [-rank(sp_input) - 1, rank(sp_input)].
name The name of the output SparseTensor.

A SparseTensor with the same data as sp_input, but its shape has an additional dimension of size 1 added.