{
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  "evaluated_at": "2026-09-23T10:35:29.587Z",
  "dataset_version": "preview-78d8410a62de48b090238c2419027e41",
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    "figure": 2458
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  "selection": "AIによる目的別の有意抽出20問。記事8・図6・根拠段落4・自然文1・未収録1。無作為抽出でも独立した利用者評価でもない。正解集合は網羅的な関連文書判定ではなく、既知の到達先。図の前半3問は説明対応あり、後半3問は隣接文による検索を測る。",
  "limitations": [
    "Curated known-item development tasks; not a random, blind or held-out relevance evaluation.",
    "Paragraph parent retrieval and exact paragraph links are reported separately.",
    "Adjacent prose is not proof of the diagram semantics; OCR is not evaluated.",
    "Question answering accuracy and historical factual accuracy are not measured."
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      "hit_at_10": 18,
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