Python frequency_based_masking Exemples

Exemple #1

Fichier : masked_lm.py Projet : puffythecat/pytext

 def _select_tokens_to_mask(self, tokens: torch.Tensor,
                            mask_prob: float) -> torch.tensor:
     if self.masking_strategy == MaskingStrategy.RANDOM:
         return random_masking(tokens, mask_prob)
     elif self.masking_strategy == MaskingStrategy.FREQUENCY:
         return frequency_based_masking(tokens, self.token_sampling_weights,
                                        mask_prob)
     else:
         raise NotImplementedError(
             "Specified Masking Strategy isnt currently implemented.")

Exemple #2

 def _select_tokens_to_mask(self, tokens: torch.Tensor,
                            mask_prob: float) -> torch.tensor:
     if self.masking_strategy == MaskingStrategy.RANDOM:
         mask = random_masking(tokens, mask_prob)
         if not self.mask_bos:
             bos_idx = self.vocab.idx[self.token_tensorizer.bos_token]
             mask *= (tokens != bos_idx).long()
         return mask
     elif self.masking_strategy == MaskingStrategy.FREQUENCY:
         return frequency_based_masking(tokens, self.token_sampling_weights,
                                        mask_prob)
     else:
         raise NotImplementedError(
             "Specified Masking Strategy isnt currently implemented.")