tf.sparse_fill_empty_rows(sp_input, default_value, name=None)
Fills empty rows in the input 2-D SparseTensor with a default value.
This op adds entries with the specified default_value at index [row, 0] for any row in the input that does not already have a value.
For example, suppose sp_input has shape [5, 6] and non-empty values:
[0, 1]: a
[0, 3]: b
[2, 0]: c
[3, 1]: d
Rows 1 and 4 are empty, so the output will be of shape [5, 6] with values:
[0, 1]: a
[0, 3]: b
[1, 0]: default_value
[2, 0]: