k_ctc_label_dense_to_sparse.RdConverts CTC labels from dense to sparse.
k_ctc_label_dense_to_sparse(labels, label_lengths)
| labels | dense CTC labels. |
|---|---|
| label_lengths | length of the labels. |
A sparse tensor representation of the labels.
This function is part of a set of Keras backend functions that enable lower level access to the core operations of the backend tensor engine (e.g. TensorFlow, CNTK, Theano, etc.).
You can see a list of all available backend functions here: https://keras.rstudio.com/articles/backend.html#backend-functions.