Index out of range using input dim 2,when implement crf

@创建于：2022.

This is because the crf layer expects the labels in a different shape. Normally your labels would be of shape (num_samples, max_length) but the crf layer expects them in the form (num_samples, max_length, 1) .

An easy fix is to reshape your labels as follows:
labels = labels.reshape((labels.shape[0], labels.shape[1], 1))

Index out of range using input dim 2,when implement crf