def edit_distance(targets, target_seq_length, predictions_sequence,
predictions_seq_length):
predicts = to_sparse(predictions_sequence, predictions_seq_length,
tf.shape(predictions_sequence)[1])
labels = to_sparse(targets, target_seq_length, tf.shape(targets)[1])
edit_distance = tf.edit_distance(predicts, labels)
mean_edit_distance = tf.reduce_mean(edit_distance)
return edit_distance, mean_edit_distance
def edit_distance(targets, target_seq_length, predictions_sequence,
predictions_seq_length, output_feature_name):
predicts = to_sparse(predictions_sequence, predictions_seq_length,
tf.shape(predictions_sequence)[1])
labels = to_sparse(targets, target_seq_length, tf.shape(targets)[1])
edit_distance = tf.edit_distance(
predicts, labels, name='edit_distance_{}'.format(output_feature_name))
mean_edit_distance = tf.reduce_mean(
edit_distance,
name='mean_edit_distance_{}'.format(output_feature_name))
return edit_distance, mean_edit_distance