


'''simple docstring'''





from jiwer import compute_measures

import datasets


__lowerCamelCase												=						'''\
@inproceedings{inproceedings,
    author = {Morris, Andrew and Maier, Viktoria and Green, Phil},
    year = {2004},
    month = {01},
    pages = {},
    title = {From WER and RIL to MER and WIL: improved evaluation measures for connected speech recognition.}
}
'''

__lowerCamelCase												=						'''\
Word error rate (WER) is a common metric of the performance of an automatic speech recognition system.

The general difficulty of measuring performance lies in the fact that the recognized word sequence can have a different length from the reference word sequence (supposedly the correct one). The WER is derived from the Levenshtein distance, working at the word level instead of the phoneme level. The WER is a valuable tool for comparing different systems as well as for evaluating improvements within one system. This kind of measurement, however, provides no details on the nature of translation errors and further work is therefore required to identify the main source(s) of error and to focus any research effort.

This problem is solved by first aligning the recognized word sequence with the reference (spoken) word sequence using dynamic string alignment. Examination of this issue is seen through a theory called the power law that states the correlation between perplexity and word error rate.

Word error rate can then be computed as:

WER = (S + D + I) / N = (S + D + I) / (S + D + C)

where

S is the number of substitutions,
D is the number of deletions,
I is the number of insertions,
C is the number of correct words,
N is the number of words in the reference (N=S+D+C).

This value indicates the average number of errors per reference word. The lower the value, the better the
performance of the ASR system with a WER of 0 being a perfect score.
'''

__lowerCamelCase												=						'''
Compute WER score of transcribed segments against references.

Args:
    references: List of references for each speech input.
    predictions: List of transcriptions to score.
    concatenate_texts (bool, default=False): Whether to concatenate all input texts or compute WER iteratively.

Returns:
    (float): the word error rate

Examples:

    >>> predictions = [\"this is the prediction\", \"there is an other sample\"]
    >>> references = [\"this is the reference\", \"there is another one\"]
    >>> wer = datasets.load_metric(\"wer\")
    >>> wer_score = wer.compute(predictions=predictions, references=references)
    >>> print(wer_score)
    0.5
'''




@datasets.utils.file_utils.add_start_docstrings(_DESCRIPTION						, _KWARGS_DESCRIPTION						)
class 				UpperCAmelCase			(			datasets.Metric						):


 def        __SCREAMING_SNAKE_CASE					(      self							:	Optional[Any] ):
    return datasets.MetricInfo(
        description=_DESCRIPTION			,       citation=_CITATION			,       inputs_description=_KWARGS_DESCRIPTION			,       features=datasets.Features(
            {
                '''predictions''': datasets.Value('''string'''			,       id='''sequence''' ),
                '''references''': datasets.Value('''string'''			,       id='''sequence''' ),
            } )			,       codebase_urls=['''https://github.com/jitsi/jiwer/''']			,       reference_urls=[
            '''https://en.wikipedia.org/wiki/Word_error_rate''',
        ]			,       )





 def        __SCREAMING_SNAKE_CASE					(      self							:	int			,       __lowerCamelCase							:	Tuple=None			,       __lowerCamelCase							:	List[str]=None			,       __lowerCamelCase							:	Any=False ):


    if concatenate_texts:
       return compute_measures(lowercase_			,       lowercase_ )["wer"]
    else:
       UpperCAmelCase__	:str      =      0
       UpperCAmelCase__	:str      =      0
       for prediction, reference in zip(lowercase_			,       lowercase_ ):
          UpperCAmelCase__	:Optional[int]      =      compute_measures(lowercase_			,       lowercase_ )
          incorrect += measures["substitutions"] + measures["deletions"] + measures["insertions"]
          total += measures["substitutions"] + measures["deletions"] + measures["hits"]
       return incorrect / total




'''simple docstring'''


from collections import OrderedDict
from typing import Mapping

from packaging import version

from ...configuration_utils import PretrainedConfig
from ...onnx import OnnxConfig
from ...utils import logging
from ..auto import CONFIG_MAPPING


__snake_case						  =		logging.get_logger(__name__)

__snake_case						  =		{
    """microsoft/table-transformer-detection""": (
        """https://huggingface.co/microsoft/table-transformer-detection/resolve/main/config.json"""
    ),
}





class       _a    (		__a      ):


  """simple docstring"""

  A_    							=						'''table-transformer'''
  A_    							=						['''past_key_values''']
  A_    							=						{
      '''hidden_size''': '''d_model''',
      '''num_attention_heads''': '''encoder_attention_heads''',
  }




  def __init__(		self      :       str   ,				lowercase_      :       str=True   ,				lowercase_      :       List[str]=None   ,				lowercase_      :       Dict=3   ,				lowercase_      :       Optional[Any]=100   ,				lowercase_      :       Optional[int]=6   ,				lowercase_      :       Optional[Any]=2_048   ,				lowercase_      :       List[Any]=8   ,				lowercase_      :       Optional[Any]=6   ,				lowercase_      :       int=2_048   ,				lowercase_      :       Any=8   ,				lowercase_      :       Optional[Any]=0.0   ,				lowercase_      :       int=0.0   ,				lowercase_      :       Dict=True   ,				lowercase_      :       int="relu"   ,				lowercase_      :       Tuple=256   ,				lowercase_      :       Dict=0.1   ,				lowercase_      :       List[str]=0.0   ,				lowercase_      :       List[str]=0.0   ,				lowercase_      :       int=0.0_2   ,				lowercase_      :       List[str]=1.0   ,				lowercase_      :       Optional[int]=False   ,				lowercase_      :       List[Any]="sine"   ,				lowercase_      :       Optional[int]="resnet50"   ,				lowercase_      :       Union[str, Any]=True   ,				lowercase_      :       Union[str, Any]=False   ,				lowercase_      :       List[str]=1   ,				lowercase_      :       Any=5   ,				lowercase_      :       Optional[int]=2   ,				lowercase_      :       Dict=1   ,				lowercase_      :       Optional[int]=1   ,				lowercase_      :       Dict=5   ,				lowercase_      :       Optional[int]=2   ,				lowercase_      :       Optional[Any]=0.1   ,				**lowercase_      :       List[str]   ,				):







    '''simple docstring'''


    if backbone_config is not None and use_timm_backbone:
      raise ValueError("""You can't specify both `backbone_config` and `use_timm_backbone`."""      )

    if not use_timm_backbone:
      if backbone_config is None:
        logger.info("""`backbone_config` is `None`. Initializing the config with the default `ResNet` backbone."""      )
        lowercase_     =       CONFIG_MAPPING["""resnet"""](out_features=["""stage4"""]      )
      elif isinstance(lowercase_   ,				lowercase_      ):
        lowercase_     =       backbone_config.get("""model_type"""      )
        lowercase_     =       CONFIG_MAPPING[backbone_model_type]
        lowercase_     =       config_class.from_dict(lowercase_      )
      # set timm attributes to None
      lowercase_     ,	lowercase_     ,	lowercase_     =       None, None, None

    lowercase_     =       use_timm_backbone
    lowercase_     =       backbone_config
    lowercase_     =       num_channels
    lowercase_     =       num_queries
    lowercase_     =       d_model
    lowercase_     =       encoder_ffn_dim
    lowercase_     =       encoder_layers
    lowercase_     =       encoder_attention_heads
    lowercase_     =       decoder_ffn_dim
    lowercase_     =       decoder_layers
    lowercase_     =       decoder_attention_heads
    lowercase_     =       dropout
    lowercase_     =       attention_dropout
    lowercase_     =       activation_dropout
    lowercase_     =       activation_function
    lowercase_     =       init_std
    lowercase_     =       init_xavier_std
    lowercase_     =       encoder_layerdrop
    lowercase_     =       decoder_layerdrop
    lowercase_     =       encoder_layers
    lowercase_     =       auxiliary_loss
    lowercase_     =       position_embedding_type
    lowercase_     =       backbone
    lowercase_     =       use_pretrained_backbone
    lowercase_     =       dilation
    # Hungarian matcher
    lowercase_     =       class_cost
    lowercase_     =       bbox_cost
    lowercase_     =       giou_cost
    # Loss coefficients
    lowercase_     =       mask_loss_coefficient
    lowercase_     =       dice_loss_coefficient
    lowercase_     =       bbox_loss_coefficient
    lowercase_     =       giou_loss_coefficient
    lowercase_     =       eos_coefficient
    super().__init__(is_encoder_decoder=lowercase_   ,				**lowercase_      )




  @property
  def 		lowerCamelCase__  (		self      :       Tuple      ):







    '''simple docstring'''


    return self.encoder_attention_heads





  @property
  def 		lowerCamelCase__  (		self      :       Dict      ):







    '''simple docstring'''


    return self.d_model






class       _a    (		__a      ):


  """simple docstring"""

  A_    							=						version.parse('''1.11'''      )




  @property
  def 		lowerCamelCase__  (		self      :       int      ):







    '''simple docstring'''


    return OrderedDict(
        [
            ("""pixel_values""", {0: """batch""", 1: """num_channels""", 2: """height""", 3: """width"""}),
            ("""pixel_mask""", {0: """batch"""}),
        ]      )




  @property
  def 		lowerCamelCase__  (		self      :       List[Any]      ):







    '''simple docstring'''


    return 1e-5





  @property
  def 		lowerCamelCase__  (		self      :       Union[str, Any]      ):







    '''simple docstring'''


    return 12

