Interprets the model's prediction for inputs. Gets the gradients of the loss with respect to the input and returns those grad

Checks whether CP is the codepoint of a CJK character.

Checks whether CP is the codepoint of a CJK character.

Checks whether `chars` is a control character.

Checks whether `chars` is a punctuation character.

Checks whether `chars` is a whitespace character.

This is used to prepare the dataset and load it from a path. Override this method in your child dataset builder class. Args:

Assume the size of self is N, and given another boxes of size M, compute the intersection area between __all__ N x M pairs of boxes.

r""" modify this method to parse image Returns: Dict: use_item (bool): whether successfully get image