I am running into this error while trying to use tf.nn.ctc_loss through keras (ctc_batch_cost):
InvalidArgumentError (see above for traceback): sequence_length(4) <= 471
According to the documentation for tf.nn.ctc_loss, Input requirements are:
sequence_length(b) <= time for all b
max(labels.indices(labels.indices[:, 1] == b, 2)) <= sequence_length(b) for all b.
I am having a hard time understanding what this means-- what is b
and what is sequence_length(b)
?