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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. | |
"""TODO: Add a description here.""" | |
import evaluate | |
import datasets | |
import numpy as np | |
# TODO: Add BibTeX citation | |
_CITATION = """\ | |
@InProceedings{huggingface:module, | |
title = {A great new module}, | |
authors={huggingface, Inc.}, | |
year={2020} | |
} | |
""" | |
# TODO: Add description of the module here | |
_DESCRIPTION = """\ | |
This new module is designed to solve this great ML task and is crafted with a lot of care. | |
""" | |
# TODO: Add description of the arguments of the module here | |
_KWARGS_DESCRIPTION = """ | |
Calculates how good are predictions given some references, using certain scores | |
Args: | |
predictions: list of predictions to score. Each predictions | |
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. | |
Returns: | |
accuracy: description of the first score, | |
another_score: description of the second score, | |
Examples: | |
Examples should be written in doctest format, and should illustrate how | |
to use the function. | |
>>> my_new_module = evaluate.load("my_new_module") | |
>>> results = my_new_module.compute(references=[0, 1], predictions=[0, 1]) | |
>>> print(results) | |
{'accuracy': 1.0} | |
""" | |
# TODO: Define external resources urls if needed | |
BAD_WORDS_URL = "http://url/to/external/resource/bad_words.txt" | |
class relation_extraction(evaluate.Metric): | |
"""TODO: Short description of my evaluation module.""" | |
def _info(self): | |
# TODO: Specifies the evaluate.EvaluationModuleInfo object | |
return evaluate.MetricInfo( | |
# This is the description that will appear on the modules page. | |
module_type="metric", | |
description=_DESCRIPTION, | |
citation=_CITATION, | |
inputs_description=_KWARGS_DESCRIPTION, | |
# This defines the format of each prediction and reference | |
features=datasets.Features({ | |
'predictions': datasets.Value('int64'), | |
'references': datasets.Value('int64'), | |
}), | |
# Homepage of the module for documentation | |
homepage="http://module.homepage", | |
# Additional links to the codebase or references | |
codebase_urls=["http://github.com/path/to/codebase/of/new_module"], | |
reference_urls=["http://path.to.reference.url/new_module"] | |
) | |
def _download_and_prepare(self, dl_manager): | |
"""Optional: download external resources useful to compute the scores""" | |
# TODO: Download external resources if needed | |
pass | |
def _compute(self, predictions, references, mode="strict", relation_types=[]): | |
"""Returns the scores""" | |
# TODO: Compute the different scores of the module | |
assert mode in ["strict", "boundaries"] | |
# construct relation_types from ground truth if not given | |
if len(relation_types) == 0: | |
for triplets in references: | |
for triplet in triplets: | |
relation = triplet["type"] | |
if relation not in relation_types: | |
relation_types.append(relation) | |
scores = {rel: {"tp": 0, "fp": 0, "fn": 0} for rel in relation_types + ["ALL"]} | |
# Count GT relations and Predicted relations | |
n_sents = len(references) | |
n_rels = sum([len([rel for rel in sent]) for sent in references]) | |
n_found = sum([len([rel for rel in sent]) for sent in predictions]) | |
# Count TP, FP and FN per type | |
for pred_sent, gt_sent in zip(predictions, references): | |
for rel_type in relation_types: | |
# strict mode takes argument types into account | |
if mode == "strict": | |
pred_rels = {(rel["head"], rel["head_type"], rel["tail"], rel["tail_type"]) for rel in pred_sent if | |
rel["type"] == rel_type} | |
gt_rels = {(rel["head"], rel["head_type"], rel["tail"], rel["tail_type"]) for rel in gt_sent if | |
rel["type"] == rel_type} | |
# boundaries mode only takes argument spans into account | |
elif mode == "boundaries": | |
pred_rels = {(rel["head"], rel["tail"]) for rel in pred_sent if rel["type"] == rel_type} | |
gt_rels = {(rel["head"], rel["tail"]) for rel in gt_sent if rel["type"] == rel_type} | |
scores[rel_type]["tp"] += len(pred_rels & gt_rels) | |
scores[rel_type]["fp"] += len(pred_rels - gt_rels) | |
scores[rel_type]["fn"] += len(gt_rels - pred_rels) | |
# Compute per entity Precision / Recall / F1 | |
for rel_type in scores.keys(): | |
if scores[rel_type]["tp"]: | |
scores[rel_type]["p"] = 100 * scores[rel_type]["tp"] / (scores[rel_type]["fp"] + scores[rel_type]["tp"]) | |
scores[rel_type]["r"] = 100 * scores[rel_type]["tp"] / (scores[rel_type]["fn"] + scores[rel_type]["tp"]) | |
else: | |
scores[rel_type]["p"], scores[rel_type]["r"] = 0, 0 | |
if not scores[rel_type]["p"] + scores[rel_type]["r"] == 0: | |
scores[rel_type]["f1"] = 2 * scores[rel_type]["p"] * scores[rel_type]["r"] / ( | |
scores[rel_type]["p"] + scores[rel_type]["r"]) | |
else: | |
scores[rel_type]["f1"] = 0 | |
# Compute micro F1 Scores | |
tp = sum([scores[rel_type]["tp"] for rel_type in relation_types]) | |
fp = sum([scores[rel_type]["fp"] for rel_type in relation_types]) | |
fn = sum([scores[rel_type]["fn"] for rel_type in relation_types]) | |
if tp: | |
precision = 100 * tp / (tp + fp) | |
recall = 100 * tp / (tp + fn) | |
f1 = 2 * precision * recall / (precision + recall) | |
else: | |
precision, recall, f1 = 0, 0, 0 | |
scores["ALL"]["p"] = precision | |
scores["ALL"]["r"] = recall | |
scores["ALL"]["f1"] = f1 | |
scores["ALL"]["tp"] = tp | |
scores["ALL"]["fp"] = fp | |
scores["ALL"]["fn"] = fn | |
# Compute Macro F1 Scores | |
scores["ALL"]["Macro_f1"] = np.mean([scores[ent_type]["f1"] for ent_type in relation_types]) | |
scores["ALL"]["Macro_p"] = np.mean([scores[ent_type]["p"] for ent_type in relation_types]) | |
scores["ALL"]["Macro_r"] = np.mean([scores[ent_type]["r"] for ent_type in relation_types]) | |
return scores | |