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metric.py
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# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
#
# 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.
import os
import re
import numpy as np
import logging
logger = logging.getLogger(__name__)
PREFIX_CHECKPOINT_DIR = "checkpoint"
_re_checkpoint = re.compile(r"^" + PREFIX_CHECKPOINT_DIR + r"\-(\d+)$")
def get_last_checkpoint(folder):
content = os.listdir(folder)
checkpoints = [
path for path in content
if _re_checkpoint.search(path) is not None and os.path.isdir(
os.path.join(folder, path))
]
if len(checkpoints) == 0:
return
return os.path.join(
folder,
max(checkpoints,
key=lambda x: int(_re_checkpoint.search(x).groups()[0])))
def re_score(pred_relations, gt_relations, mode="strict"):
"""Evaluate RE predictions
Args:
pred_relations (list) : list of list of predicted relations (several relations in each sentence)
gt_relations (list) : list of list of ground truth relations
rel = { "head": (start_idx (inclusive), end_idx (exclusive)),
"tail": (start_idx (inclusive), end_idx (exclusive)),
"head_type": ent_type,
"tail_type": ent_type,
"type": rel_type}
vocab (Vocab) : dataset vocabulary
mode (str) : in 'strict' or 'boundaries'"""
assert mode in ["strict", "boundaries"]
relation_types = [v for v in [0, 1] if not v == 0]
scores = {
rel: {
"tp": 0,
"fp": 0,
"fn": 0
}
for rel in relation_types + ["ALL"]
}
# Count GT relations and Predicted relations
n_sents = len(gt_relations)
n_rels = sum([len([rel for rel in sent]) for sent in gt_relations])
n_found = sum([len([rel for rel in sent]) for sent in pred_relations])
# Count TP, FP and FN per type
for pred_sent, gt_sent in zip(pred_relations, gt_relations):
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"] = scores[rel_type]["tp"] / (
scores[rel_type]["fp"] + scores[rel_type]["tp"])
scores[rel_type]["r"] = 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 = tp / (tp + fp)
recall = 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])
# logger.info(f"RE Evaluation in *** {mode.upper()} *** mode")
# logger.info(
# "processed {} sentences with {} relations; found: {} relations; correct: {}.".format(
# n_sents, n_rels, n_found, tp
# )
# )
# logger.info(
# "\tALL\t TP: {};\tFP: {};\tFN: {}".format(scores["ALL"]["tp"], scores["ALL"]["fp"], scores["ALL"]["fn"])
# )
# logger.info("\t\t(m avg): precision: {:.2f};\trecall: {:.2f};\tf1: {:.2f} (micro)".format(precision, recall, f1))
# logger.info(
# "\t\t(M avg): precision: {:.2f};\trecall: {:.2f};\tf1: {:.2f} (Macro)\n".format(
# scores["ALL"]["Macro_p"], scores["ALL"]["Macro_r"], scores["ALL"]["Macro_f1"]
# )
# )
# for rel_type in relation_types:
# logger.info(
# "\t{}: \tTP: {};\tFP: {};\tFN: {};\tprecision: {:.2f};\trecall: {:.2f};\tf1: {:.2f};\t{}".format(
# rel_type,
# scores[rel_type]["tp"],
# scores[rel_type]["fp"],
# scores[rel_type]["fn"],
# scores[rel_type]["p"],
# scores[rel_type]["r"],
# scores[rel_type]["f1"],
# scores[rel_type]["tp"] + scores[rel_type]["fp"],
# )
# )
return scores