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      "ylabel": "Joint supported-generation probability",
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  "title": "Retrieval and conditional grounding form a chain",
  "assumptions": "G is success conditional on R. Constant conditional probabilities are illustrative; answer correctness is a different event.",
  "worked": "若支持证据检索率为0.8，且检索成功后的有依据生成率为0.9，联合率为0.72。这不等于全部答案准确率；无证据时猜对或有证据时错误须另计。",
  "source_ids": [
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    "dpr",
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  "formula_source": "Article equations and this versioned script",
  "diagram_nodes": [
    "问题与时间范围",
    "版本化文档及索引",
    "候选检索 / 重排",
    "充分性与冲突检查",
    "受上下文约束生成",
    "主张级引用与复核"
  ]
}