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      "xlabel": "Input update norm",
      "ylabel": "Clipped norm",
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      "ylabel": "Scalar update"
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  "title": "Clipping and weighting change the aggregate",
  "assumptions": "Clipping is deterministic; two fictional scalar clients have updates+1,-1 with sample shares0.9,0.1. No private data and no epsilon calculation.",
  "worked": "两客户端更新+1与−1，按0.9和0.1样本权重得0.8，等客户端权重得0。裁剪只限制贡献范数，差分隐私还需要噪声、采样和完整会计。",
  "source_ids": [
    "arxiv-1602.05629",
    "arxiv-1607.00133",
    "arxiv-1611.04482"
  ],
  "formula_source": "Article equations and this versioned script",
  "diagram_nodes": [
    "客户端与保护单位",
    "本地更新 / 非IID",
    "裁剪及随机机制",
    "安全聚合与掉线",
    "加权全局更新",
    "质量、系统及隐私会计"
  ]
}