
"""simple docstring"""





import os

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

import datasets


_a								=						datasets.logging.get_logger(__name__)


_a								=						"""\
@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}
}
"""

_a								=						"""\
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.
"""

_a								=						"""
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]
"""

_a								=						{
    """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      ):



		def 		UpperCAmelCase				(   self)			->			str:






							'''simple docstring'''
							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 		UpperCAmelCase				(   self							,						__a)			->			Union[str, Any]:






							'''simple docstring'''
							# 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\').''')
												_UpperCamelCase									=    '''bleurt-base-128'''

							if self.config_name.lower() in CHECKPOINT_URLS:
												_UpperCamelCase									=    self.config_name.lower()

							elif self.config_name.upper() in CHECKPOINT_URLS:
												_UpperCamelCase									=    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
							_UpperCamelCase									=    dl_manager.download_and_extract(CHECKPOINT_URLS[checkpoint_name])
							_UpperCamelCase									=    score.BleurtScorer(os.path.join(__a							,						__a))




		def 		UpperCAmelCase				(   self							,						__a							,						__a)			->			Dict:






							'''simple docstring'''
							_UpperCamelCase									=    self.scorer.score(references=__a							,						candidates=__a)
							return {"scores": scores}








"""simple docstring"""





import torch

from diffusers import DPMSolverSDEScheduler
from diffusers.utils import torch_device
from diffusers.utils.testing_utils import require_torchsde

from .test_schedulers import SchedulerCommonTest






@require_torchsde
class        _UpperCAmelCase(       lowerCamelCase      ):
		lowercase__         = (DPMSolverSDEScheduler,)
		lowercase__         = 10



		def 		UpperCAmelCase				(   self							,						**__a)			->			int:






							'''simple docstring'''
							_UpperCamelCase									=    {
							    '''num_train_timesteps''': 11_00,
							    '''beta_start''': 0.0001,
							    '''beta_end''': 0.02,
							    '''beta_schedule''': '''linear''',
							    '''noise_sampler_seed''': 0,
							}

							config.update(**__a)
							return config



		def 		UpperCAmelCase				(   self)			->			Union[str, Any]:






							'''simple docstring'''
							for timesteps in [10, 50, 1_00, 10_00]:
												self.check_over_configs(num_train_timesteps=__a)



		def 		UpperCAmelCase				(   self)			->			Dict:






							'''simple docstring'''
							for beta_start, beta_end in zip([0.0_0001, 0.0001, 0.001]							,						[0.0002, 0.002, 0.02]):
												self.check_over_configs(beta_start=__a							,						beta_end=__a)



		def 		UpperCAmelCase				(   self)			->			Optional[int]:






							'''simple docstring'''
							for schedule in ["linear", "scaled_linear"]:
												self.check_over_configs(beta_schedule=__a)



		def 		UpperCAmelCase				(   self)			->			str:






							'''simple docstring'''
							for prediction_type in ["epsilon", "v_prediction"]:
												self.check_over_configs(prediction_type=__a)



		def 		UpperCAmelCase				(   self)			->			Union[str, Any]:






							'''simple docstring'''
							_UpperCamelCase									=    self.scheduler_classes[0]
							_UpperCamelCase									=    self.get_scheduler_config()
							_UpperCamelCase									=    scheduler_class(**__a)

							scheduler.set_timesteps(self.num_inference_steps)

							_UpperCamelCase									=    self.dummy_model()
							_UpperCamelCase									=    self.dummy_sample_deter * scheduler.init_noise_sigma
							_UpperCamelCase									=    sample.to(__a)

							for i, t in enumerate(scheduler.timesteps):
												_UpperCamelCase									=    scheduler.scale_model_input(__a							,						__a)

												_UpperCamelCase									=    model(__a							,						__a)

												_UpperCamelCase									=    scheduler.step(__a							,						__a							,						__a)
												_UpperCamelCase									=    output.prev_sample

							_UpperCamelCase									=    torch.sum(torch.abs(__a))
							_UpperCamelCase									=    torch.mean(torch.abs(__a))

							if torch_device in ["mps"]:
												assert abs(result_sum.item() - 167.47_8210_4492_1875) < 1e-2
												assert abs(result_mean.item() - 0.2178_7059_6456_5277) < 1e-3
							elif torch_device in ["cuda"]:
												assert abs(result_sum.item() - 171.59_3521_1181_6406) < 1e-2
												assert abs(result_mean.item() - 0.2_2342_9068_9229_9652) < 1e-3
							else:
												assert abs(result_sum.item() - 162.52_3834_2285_1562) < 1e-2
												assert abs(result_mean.item() - 0.211_6195_7085_1326) < 1e-3



		def 		UpperCAmelCase				(   self)			->			List[str]:






							'''simple docstring'''
							_UpperCamelCase									=    self.scheduler_classes[0]
							_UpperCamelCase									=    self.get_scheduler_config(prediction_type='''v_prediction''')
							_UpperCamelCase									=    scheduler_class(**__a)

							scheduler.set_timesteps(self.num_inference_steps)

							_UpperCamelCase									=    self.dummy_model()
							_UpperCamelCase									=    self.dummy_sample_deter * scheduler.init_noise_sigma
							_UpperCamelCase									=    sample.to(__a)

							for i, t in enumerate(scheduler.timesteps):
												_UpperCamelCase									=    scheduler.scale_model_input(__a							,						__a)

												_UpperCamelCase									=    model(__a							,						__a)

												_UpperCamelCase									=    scheduler.step(__a							,						__a							,						__a)
												_UpperCamelCase									=    output.prev_sample

							_UpperCamelCase									=    torch.sum(torch.abs(__a))
							_UpperCamelCase									=    torch.mean(torch.abs(__a))

							if torch_device in ["mps"]:
												assert abs(result_sum.item() - 124.77_1492_0043_9453) < 1e-2
												assert abs(result_mean.item() - 0.1_6226_2890_1481_6284) < 1e-3
							elif torch_device in ["cuda"]:
												assert abs(result_sum.item() - 128.1_6633_6059_5703) < 1e-2
												assert abs(result_mean.item() - 0.1_6688_3260_0116_7297) < 1e-3
							else:
												assert abs(result_sum.item() - 119.8_4875_4882_8125) < 1e-2
												assert abs(result_mean.item() - 0.1560_5306_6253_6621) < 1e-3



		def 		UpperCAmelCase				(   self)			->			Any:






							'''simple docstring'''
							_UpperCamelCase									=    self.scheduler_classes[0]
							_UpperCamelCase									=    self.get_scheduler_config()
							_UpperCamelCase									=    scheduler_class(**__a)

							scheduler.set_timesteps(self.num_inference_steps							,						device=__a)

							_UpperCamelCase									=    self.dummy_model()
							_UpperCamelCase									=    self.dummy_sample_deter.to(__a) * scheduler.init_noise_sigma

							for t in scheduler.timesteps:
												_UpperCamelCase									=    scheduler.scale_model_input(__a							,						__a)

												_UpperCamelCase									=    model(__a							,						__a)

												_UpperCamelCase									=    scheduler.step(__a							,						__a							,						__a)
												_UpperCamelCase									=    output.prev_sample

							_UpperCamelCase									=    torch.sum(torch.abs(__a))
							_UpperCamelCase									=    torch.mean(torch.abs(__a))

							if torch_device in ["mps"]:
												assert abs(result_sum.item() - 167.46_9573_9746_0938) < 1e-2
												assert abs(result_mean.item() - 0.2_1805_9346_0798_2635) < 1e-3
							elif torch_device in ["cuda"]:
												assert abs(result_sum.item() - 171.59_3536_3769_5312) < 1e-2
												assert abs(result_mean.item() - 0.2_2342_9083_8241_5771) < 1e-3
							else:
												assert abs(result_sum.item() - 162.52_3834_2285_1562) < 1e-2
												assert abs(result_mean.item() - 0.211_6195_7085_1326) < 1e-3




		def 		UpperCAmelCase				(   self)			->			Any:






							'''simple docstring'''
							_UpperCamelCase									=    self.scheduler_classes[0]
							_UpperCamelCase									=    self.get_scheduler_config()
							_UpperCamelCase									=    scheduler_class(**__a							,						use_karras_sigmas=__a)

							scheduler.set_timesteps(self.num_inference_steps							,						device=__a)

							_UpperCamelCase									=    self.dummy_model()
							_UpperCamelCase									=    self.dummy_sample_deter.to(__a) * scheduler.init_noise_sigma
							_UpperCamelCase									=    sample.to(__a)

							for t in scheduler.timesteps:
												_UpperCamelCase									=    scheduler.scale_model_input(__a							,						__a)

												_UpperCamelCase									=    model(__a							,						__a)

												_UpperCamelCase									=    scheduler.step(__a							,						__a							,						__a)
												_UpperCamelCase									=    output.prev_sample

							_UpperCamelCase									=    torch.sum(torch.abs(__a))
							_UpperCamelCase									=    torch.mean(torch.abs(__a))

							if torch_device in ["mps"]:
												assert abs(result_sum.item() - 176.66_9741_3574_2188) < 1e-2
												assert abs(result_mean.item() - 0.2_3003_8727_3098_1811) < 1e-2
							elif torch_device in ["cuda"]:
												assert abs(result_sum.item() - 177.63_6535_6445_3125) < 1e-2
												assert abs(result_mean.item() - 0.2_3003_8727_3098_1811) < 1e-2
							else:
												assert abs(result_sum.item() - 170.3_1352_2338_8672) < 1e-2
												assert abs(result_mean.item() - 0.2_3003_8727_3098_1811) < 1e-2






