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""" |
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HF dataset loading script |
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""" |
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import re |
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from pathlib import Path |
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import datasets |
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import pandas as pd |
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_DESCRIPTION = """Update-background tuples for 14 news event timelines.""" |
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_URLS = { |
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"events": "events.tar.gz", |
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"train": "splits/train.txt", |
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"dev": "splits/dev.txt", |
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"test": "splits/test.txt", |
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} |
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_CITATION = """\ |
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@article{pratapa-etal-2023-background, |
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title = {Background Summarization of Event Timelines}, |
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author = {Pratapa, Adithya and Small, Kevin and Dreyer, Markus}, |
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publisher = {EMNLP}, |
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year = {2023} |
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} |
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""" |
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_HOMEPAGE = "https://github.com/amazon-science/background-summaries" |
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_LICENSE = "CC-BY-NC-4.0" |
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class BackgroundSummConfig(datasets.BuilderConfig): |
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def __init__(self, features, **kwargs) -> None: |
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super().__init__(version=datasets.Version("1.0.0"), **kwargs) |
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self.features = features |
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class BackgroundSumm(datasets.GeneratorBasedBuilder): |
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VERSION = datasets.Version("1.0.0") |
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BUILDER_CONFIGS = [ |
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BackgroundSummConfig( |
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name="background-summ", |
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description=_DESCRIPTION, |
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features=["src", "tgt", "z"], |
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) |
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] |
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def _info(self): |
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return datasets.DatasetInfo( |
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description=_DESCRIPTION, |
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features=datasets.Features( |
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{field: datasets.Value("string") for field in ["src", "tgt", "z"]} |
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), |
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homepage=_HOMEPAGE, |
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license=_LICENSE, |
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) |
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def _split_generators(self, dl_manager): |
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dl_files = dl_manager.download_and_extract(_URLS) |
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return [ |
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datasets.SplitGenerator( |
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name=datasets.Split.TRAIN, |
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gen_kwargs={ |
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"events_path": Path(dl_files["events"]), |
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"splits_path": Path(dl_files["train"]), |
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}, |
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), |
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datasets.SplitGenerator( |
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name=datasets.Split.VALIDATION, |
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gen_kwargs={ |
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"events_path": Path(dl_files["events"]), |
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"splits_path": Path(dl_files["dev"]), |
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}, |
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), |
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datasets.SplitGenerator( |
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name=datasets.Split.TEST, |
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gen_kwargs={ |
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"events_path": Path(dl_files["events"]), |
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"splits_path": Path(dl_files["test"]), |
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}, |
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), |
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] |
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def _generate_examples(self, events_path: Path, splits_path: Path): |
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with open(splits_path, "r") as rf: |
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event_names = [line.strip() for line in rf.readlines()] |
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data_idx = 0 |
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for event in event_names: |
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annotators = ["annotator1", "annotator2", "annotator3"] |
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for ann in annotators: |
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tsv_path = events_path / "events" / event / f"{ann}.tsv" |
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df = pd.read_csv(tsv_path, sep="\t") |
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df = df.fillna("") |
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timestamps, updates, backgrounds = [], [], [] |
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for idx, row in enumerate(df.itertuples()): |
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ts = row.Date.strip("[]") |
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update = row.Update.replace("\\n", " ") |
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update = re.sub(r"[ ]+", r" ", update).strip() |
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background = row.Background.replace("\\n", " ") |
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background = re.sub(r"[ ]+", r" ", background).strip() |
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timestamps += [ts] |
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updates += [update] |
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backgrounds += [background] |
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src = [ |
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f"Date: {_ts}, Update: {_update}" |
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for _ts, _update in zip(timestamps[:-1], updates[:-1]) |
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] |
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src = " ".join(src) |
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tgt = backgrounds[-1] |
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z = f"Date: {ts}, Update: {updates[-1]}" |
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if idx > 0: |
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yield data_idx, {"src": src, "tgt": tgt, "z": z} |
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data_idx += 1 |
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