contrib.keras.backend.ctc_batch_cost
tf.contrib.keras.backend.ctc_batch_cost
tf.contrib.keras.backend.ctc_batch_cost
ctc_batch_cost( y_true, y_pred, input_length, label_length )
Defined in tensorflow/contrib/keras/python/keras/backend.py
.
Runs CTC loss algorithm on each batch element.
Arguments:
y_true: tensor `(samples, max_string_length)` containing the truth labels. y_pred: tensor `(samples, time_steps, num_categories)` containing the prediction, or output of the softmax. input_length: tensor `(samples, 1)` containing the sequence length for each batch item in `y_pred`. label_length: tensor `(samples, 1)` containing the sequence length for each batch item in `y_true`.
Returns:
Tensor with shape (samples,1) containing the CTC loss of each element.
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Licensed under the Creative Commons Attribution License 3.0.
Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/api_docs/python/tf/contrib/keras/backend/ctc_batch_cost