
"""simple docstring"""







import absl  # noqa: F401 # Here to have a nice missing dependency error message early on
import nltk  # noqa: F401 # Here to have a nice missing dependency error message early on
import numpy  # noqa: F401 # Here to have a nice missing dependency error message early on
import six  # noqa: F401 # Here to have a nice missing dependency error message early on
from rouge_score import rouge_scorer, scoring

import datasets


lowercase__		:    str				   =     """\
@inproceedings{lin-2004-rouge,
    title = \"{ROUGE}: A Package for Automatic Evaluation of Summaries\",
    author = \"Lin, Chin-Yew\",
    booktitle = \"Text Summarization Branches Out\",
    month = jul,
    year = \"2004\",
    address = \"Barcelona, Spain\",
    publisher = \"Association for Computational Linguistics\",
    url = \"https://www.aclweb.org/anthology/W04-1013\",
    pages = \"74--81\",
}
"""

lowercase__		:    List[Any]				   =     """\
ROUGE, or Recall-Oriented Understudy for Gisting Evaluation, is a set of metrics and a software package used for
evaluating automatic summarization and machine translation software in natural language processing.
The metrics compare an automatically produced summary or translation against a reference or a set of references (human-produced) summary or translation.

Note that ROUGE is case insensitive, meaning that upper case letters are treated the same way as lower case letters.

This metrics is a wrapper around Google Research reimplementation of ROUGE:
https://github.com/google-research/google-research/tree/master/rouge
"""

lowercase__		:    str				   =     """
Calculates average rouge scores for a list of hypotheses and references
Args:
    predictions: list of predictions to score. Each prediction
        should be a string with tokens separated by spaces.
    references: list of reference for each prediction. Each
        reference should be a string with tokens separated by spaces.
    rouge_types: A list of rouge types to calculate.
        Valid names:
        `\"rouge{n}\"` (e.g. `\"rouge1\"`, `\"rouge2\"`) where: {n} is the n-gram based scoring,
        `\"rougeL\"`: Longest common subsequence based scoring.
        `\"rougeLSum\"`: rougeLsum splits text using `\"\n\"`.
        See details in https://github.com/huggingface/datasets/issues/617
    use_stemmer: Bool indicating whether Porter stemmer should be used to strip word suffixes.
    use_aggregator: Return aggregates if this is set to True
Returns:
    rouge1: rouge_1 (precision, recall, f1),
    rouge2: rouge_2 (precision, recall, f1),
    rougeL: rouge_l (precision, recall, f1),
    rougeLsum: rouge_lsum (precision, recall, f1)
Examples:

    >>> rouge = datasets.load_metric('rouge')
    >>> predictions = [\"hello there\", \"general kenobi\"]
    >>> references = [\"hello there\", \"general kenobi\"]
    >>> results = rouge.compute(predictions=predictions, references=references)
    >>> print(list(results.keys()))
    ['rouge1', 'rouge2', 'rougeL', 'rougeLsum']
    >>> print(results[\"rouge1\"])
    AggregateScore(low=Score(precision=1.0, recall=1.0, fmeasure=1.0), mid=Score(precision=1.0, recall=1.0, fmeasure=1.0), high=Score(precision=1.0, recall=1.0, fmeasure=1.0))
    >>> print(results[\"rouge1\"].mid.fmeasure)
    1.0
"""







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




      """simple docstring"""




      def 					SCREAMING_SNAKE_CASE__			(				self    :				List[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/google-research/google-research/tree/master/rouge']   ,      reference_urls=[
                'https://en.wikipedia.org/wiki/ROUGE_(metric)',
                'https://github.com/google-research/google-research/tree/master/rouge',
            ]   ,      )





      def 					SCREAMING_SNAKE_CASE__			(				self    :				Optional[Any]   ,      SCREAMING_SNAKE_CASE_    :				List[Any]   ,      SCREAMING_SNAKE_CASE_    :				List[Any]   ,      SCREAMING_SNAKE_CASE_    :				str=None   ,      SCREAMING_SNAKE_CASE_    :				str=True   ,      SCREAMING_SNAKE_CASE_    :				Any=False	):
        if rouge_types is None:
          lowerCAmelCase_       :    Tuple								=			['rouge1', 'rouge2', 'rougeL', 'rougeLsum']

        lowerCAmelCase_       :    Union[str, Any]								=			rouge_scorer.RougeScorer(rouge_types=SCREAMING_SNAKE_CASE_   ,      use_stemmer=SCREAMING_SNAKE_CASE_	)
        if use_aggregator:
          lowerCAmelCase_       :    List[str]								=			scoring.BootstrapAggregator()
        else:
          lowerCAmelCase_       :    Any								=			[]

        for ref, pred in zip(SCREAMING_SNAKE_CASE_   ,      SCREAMING_SNAKE_CASE_	):
          lowerCAmelCase_       :    Optional[int]								=			scorer.score(SCREAMING_SNAKE_CASE_   ,      SCREAMING_SNAKE_CASE_	)
          if use_aggregator:
            aggregator.add_scores(SCREAMING_SNAKE_CASE_	)
          else:
            scores.append(SCREAMING_SNAKE_CASE_	)

        if use_aggregator:
          lowerCAmelCase_       :    List[Any]								=			aggregator.aggregate()
        else:
          lowerCAmelCase_       :    Union[str, Any]								=			{}
          for key in scores[0]:
            lowerCAmelCase_       :    Tuple								=			[score[key] for score in scores]

        return result










"""simple docstring"""







import os

from bleurt import score  # From: git+https://github.com/google-research/bleurt.git

import datasets


lowercase__		:    Tuple				   =     datasets.logging.get_logger(__name__)


lowercase__		:    List[Any]				   =     """\
@inproceedings{bleurt,
  title={BLEURT: Learning Robust Metrics for Text Generation},
  author={Thibault Sellam and Dipanjan Das and Ankur P. Parikh},
  booktitle={ACL},
  year={2020},
  url={https://arxiv.org/abs/2004.04696}
}
"""

lowercase__		:    Tuple				   =     """\
BLEURT a learnt evaluation metric for Natural Language Generation. It is built using multiple phases of transfer learning starting from a pretrained BERT model (Devlin et al. 2018)
and then employing another pre-training phrase using synthetic data. Finally it is trained on WMT human annotations. You may run BLEURT out-of-the-box or fine-tune
it for your specific application (the latter is expected to perform better).

See the project's README at https://github.com/google-research/bleurt#readme for more information.
"""

lowercase__		:    List[Any]				   =     """
BLEURT score.

Args:
    `predictions` (list of str): prediction/candidate sentences
    `references` (list of str): reference sentences
    `checkpoint` BLEURT checkpoint. Will default to BLEURT-tiny if None.

Returns:
    'scores': List of scores.
Examples:

    >>> predictions = [\"hello there\", \"general kenobi\"]
    >>> references = [\"hello there\", \"general kenobi\"]
    >>> bleurt = datasets.load_metric(\"bleurt\")
    >>> results = bleurt.compute(predictions=predictions, references=references)
    >>> print([round(v, 2) for v in results[\"scores\"]])
    [1.03, 1.04]
"""

lowercase__		:    List[Any]				   =     {
    """bleurt-tiny-128""": """https://storage.googleapis.com/bleurt-oss/bleurt-tiny-128.zip""",
    """bleurt-tiny-512""": """https://storage.googleapis.com/bleurt-oss/bleurt-tiny-512.zip""",
    """bleurt-base-128""": """https://storage.googleapis.com/bleurt-oss/bleurt-base-128.zip""",
    """bleurt-base-512""": """https://storage.googleapis.com/bleurt-oss/bleurt-base-512.zip""",
    """bleurt-large-128""": """https://storage.googleapis.com/bleurt-oss/bleurt-large-128.zip""",
    """bleurt-large-512""": """https://storage.googleapis.com/bleurt-oss/bleurt-large-512.zip""",
    """BLEURT-20-D3""": """https://storage.googleapis.com/bleurt-oss-21/BLEURT-20-D3.zip""",
    """BLEURT-20-D6""": """https://storage.googleapis.com/bleurt-oss-21/BLEURT-20-D6.zip""",
    """BLEURT-20-D12""": """https://storage.googleapis.com/bleurt-oss-21/BLEURT-20-D12.zip""",
    """BLEURT-20""": """https://storage.googleapis.com/bleurt-oss-21/BLEURT-20.zip""",
}







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




      """simple docstring"""




      def 					SCREAMING_SNAKE_CASE__			(				self    :				List[str]	):
        return datasets.MetricInfo(
            description=_DESCRIPTION   ,      citation=_CITATION   ,      homepage='https://github.com/google-research/bleurt'   ,      inputs_description=_KWARGS_DESCRIPTION   ,      features=datasets.Features(
                {
                    'predictions': datasets.Value('string'   ,      id='sequence'	),
                    'references': datasets.Value('string'   ,      id='sequence'	),
                }	)   ,      codebase_urls=['https://github.com/google-research/bleurt']   ,      reference_urls=['https://github.com/google-research/bleurt', 'https://arxiv.org/abs/2004.04696']   ,      )



      def 					SCREAMING_SNAKE_CASE__			(				self    :				str   ,      SCREAMING_SNAKE_CASE_    :				str	):
        # check that config name specifies a valid BLEURT model
        if self.config_name == "default":
          logger.warning(
              'Using default BLEURT-Base checkpoint for sequence maximum length 128. '
              'You can use a bigger model for better results with e.g.: datasets.load_metric(\'bleurt\', \'bleurt-large-512\').'	)
          lowerCAmelCase_       :    List[Any]								=			'bleurt-base-128'

        if self.config_name.lower() in CHECKPOINT_URLS:
          lowerCAmelCase_       :    List[Any]								=			self.config_name.lower()

        elif self.config_name.upper() in CHECKPOINT_URLS:
          lowerCAmelCase_       :    Tuple								=			self.config_name.upper()

        else:
          raise KeyError(
              F"{self.config_name} model not found. You should supply the name of a model checkpoint for bleurt in {CHECKPOINT_URLS.keys()}"	)

        # download the model checkpoint specified by self.config_name and set up the scorer
        lowerCAmelCase_       :    List[Any]								=			dl_manager.download_and_extract(CHECKPOINT_URLS[checkpoint_name]	)
        lowerCAmelCase_       :    List[str]								=			score.BleurtScorer(os.path.join(SCREAMING_SNAKE_CASE_   ,      SCREAMING_SNAKE_CASE_	)	)





      def 					SCREAMING_SNAKE_CASE__			(				self    :				str   ,      SCREAMING_SNAKE_CASE_    :				List[Any]   ,      SCREAMING_SNAKE_CASE_    :				Any	):
        lowerCAmelCase_       :    Tuple								=			self.scorer.score(references=SCREAMING_SNAKE_CASE_   ,      candidates=SCREAMING_SNAKE_CASE_	)
        return {"scores": scores}





