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# Copyright 2020 The HuggingFace Datasets Authors and the current dataset script contributor.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Exact Match metric."""
import re
import string
import datasets
import numpy as np
import evaluate
_DESCRIPTION = """
Returns the rate at which the input predicted strings exactly match their references, ignoring any strings input as part of the regexes_to_ignore list.
"""
_KWARGS_DESCRIPTION = """
Args:
predictions: List of predicted texts.
references: List of reference texts.
regexes_to_ignore: List, defaults to None. Regex expressions of characters to
ignore when calculating the exact matches. Note: these regexes are removed
from the input data before the changes based on the options below (e.g. ignore_case,
ignore_punctuation, ignore_numbers) are applied.
ignore_case: Boolean, defaults to False. If true, turns everything
to lowercase so that capitalization differences are ignored.
ignore_punctuation: Boolean, defaults to False. If true, removes all punctuation before
comparing predictions and references.
ignore_numbers: Boolean, defaults to False. If true, removes all punctuation before
comparing predictions and references.
Returns:
exact_match: Dictionary containing exact_match rate. Possible values are between 0.0 and 1.0, inclusive.
Examples:
>>> exact_match = evaluate.load("exact_match")
>>> refs = ["the cat", "theater", "YELLING", "agent007"]
>>> preds = ["cat?", "theater", "yelling", "agent"]
>>> results = exact_match.compute(references=refs, predictions=preds)
>>> print(round(results["exact_match"], 2))
0.25
>>> exact_match = evaluate.load("exact_match")
>>> refs = ["the cat", "theater", "YELLING", "agent007"]
>>> preds = ["cat?", "theater", "yelling", "agent"]
>>> results = exact_match.compute(references=refs, predictions=preds, regexes_to_ignore=["the ", "yell"], ignore_case=True, ignore_punctuation=True)
>>> print(round(results["exact_match"], 2))
0.5
>>> exact_match = evaluate.load("exact_match")
>>> refs = ["the cat", "theater", "YELLING", "agent007"]
>>> preds = ["cat?", "theater", "yelling", "agent"]
>>> results = exact_match.compute(references=refs, predictions=preds, regexes_to_ignore=["the ", "yell", "YELL"], ignore_case=True, ignore_punctuation=True)
>>> print(round(results["exact_match"], 2))
0.75
>>> exact_match = evaluate.load("exact_match")
>>> refs = ["the cat", "theater", "YELLING", "agent007"]
>>> preds = ["cat?", "theater", "yelling", "agent"]
>>> results = exact_match.compute(references=refs, predictions=preds, regexes_to_ignore=["the ", "yell", "YELL"], ignore_case=True, ignore_punctuation=True, ignore_numbers=True)
>>> print(round(results["exact_match"], 2))
1.0
>>> exact_match = evaluate.load("exact_match")
>>> refs = ["The cat sat on the mat.", "Theaters are great.", "It's like comparing oranges and apples."]
>>> preds = ["The cat sat on the mat?", "Theaters are great.", "It's like comparing apples and oranges."]
>>> results = exact_match.compute(references=refs, predictions=preds)
>>> print(round(results["exact_match"], 2))
0.33
"""
_CITATION = """
"""
@evaluate.utils.file_utils.add_start_docstrings(_DESCRIPTION, _KWARGS_DESCRIPTION)
class nl2bash_metric(evaluate.Metric):
def _info(self):
return evaluate.MetricInfo(
description=_DESCRIPTION,
citation=_CITATION,
inputs_description=_KWARGS_DESCRIPTION,
features=datasets.Features(
{
"predictions": datasets.Value("string", id="sequence"),
"references": datasets.Value("string", id="sequence"),
}
),
reference_urls=[],
)
def _compute(
self,
predictions,
references,
regexes_to_ignore=None,
ignore_case=False,
ignore_punctuation=False,
ignore_numbers=False,
):
if regexes_to_ignore is not None:
for s in regexes_to_ignore:
predictions = np.array([re.sub(s, "", x) for x in predictions])
references = np.array([re.sub(s, "", x) for x in references])
else:
predictions = np.asarray(predictions)
references = np.asarray(references)
if ignore_case:
predictions = np.char.lower(predictions)
references = np.char.lower(references)
if ignore_punctuation:
repl_table = string.punctuation.maketrans("", "", string.punctuation)
predictions = np.char.translate(predictions, table=repl_table)
references = np.char.translate(references, table=repl_table)
if ignore_numbers:
repl_table = string.digits.maketrans("", "", string.digits)
predictions = np.char.translate(predictions, table=repl_table)
references = np.char.translate(references, table=repl_table)
score_list = predictions == references
return {"exact_match": np.mean(score_list)} |