37 lines
1.4 KiB
Python
37 lines
1.4 KiB
Python
"""LongBench v2 (official source: THUDM/LongBench-v2)."""
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from ..sample import Sample
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from ..registry import register_dataset
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from ..spec import DatasetSpec
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@register_dataset(
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DatasetSpec(
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name='longbench_v2',
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source='THUDM/LongBench-v2', # official: https://huggingface.co/datasets/THUDM/LongBench-v2
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split='train', # the dataset ships a single split
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params={'filter_column': 'length'},
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prompt_style='lb2_es', # es <text> wrapper + CoT contract # subset selects length: short/medium/long
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task_type='mcq',
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tags=['long_context'],
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description='LongBench v2 long-context MCQ (official). Context kept in metadata.',
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)
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)
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def longbench_v2():
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def to_sample(record: dict) -> Sample:
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return Sample(
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input=record['question'],
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choices=[record['choice_A'], record['choice_B'], record['choice_C'], record['choice_D']],
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target=str(record['answer']).strip(),
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metadata={
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'context': record['context'], # the long document; eval-time prompt assembly
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'domain': record.get('domain'),
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'sub_domain': record.get('sub_domain'),
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'difficulty': record.get('difficulty'),
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'length': record.get('length'),
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'subset': record.get('length'), # official subsets: short/medium/long
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},
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)
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return to_sample
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