mindspore.dataset.text.ToVectors

class mindspore.dataset.text.ToVectors(vectors, unk_init=None, lower_case_backup=False)[源代码]

Look up a token into vectors according to the input vector table.

Parameters

  • vectors (Vectors) – A vectors object.

  • unk_init (sequence, optional) – Sequence used to initialize out-of-vectors (OOV) token (default=None, initialize with zero vectors).

  • lower_case_backup (bool, optional) – Whether to look up the token in the lower case. If False, each token in the original case will be looked up; if True, each token in the original case will be looked up first, if not found in the keys of the property stoi, the token in the lower case will be looked up (default=False).

Raises

  • TypeError – If unk_init is not of type sequence.

  • TypeError – If elements of unk_init is not of type float or int.

  • TypeError – If lower_case_backup is not of type bool.

Supported Platforms:

CPU

Examples

>>> # Load vectors from file
>>> vectors = text.Vectors.from_file("/path/to/vectors/file")
>>> # Use ToVectors operator to map tokens to vectors
>>> to_vectors = text.ToVectors(vectors)
>>> text_file_dataset = text_file_dataset.map(operations=[to_vectors])