20260625:很多新内容
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concepts/insight-backpropagation.md
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concepts/insight-backpropagation.md
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title: "Insight Backpropagation"
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created: 2026-06-24
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updated: 2026-06-24
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type: concept
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tags: ["knowledge-management", "agent", "tree-structure", "abstraction"]
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sources:
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- "[[arbor-htr-2026]]"
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---
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# Insight Backpropagation
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Insight Backpropagation 是 Arbor 假设树中从叶到根的洞察传播机制:将局部实验结果抽象为方向级经验,最终贡献到全局紧凑理解。
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## 工作流
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1. **叶子执行**:Executor 返回 (score, result, insight, branch)
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2. **写回节点**:将结果写入对应叶子节点
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3. **向上抽象**:沿祖先路径,每个内部节点 Abstract({ι_c for c in children})
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4. **全局汇聚**:根的 insight 汇总整次运行的 compact understanding
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## 洞察 vs 日志
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| 维度 | 执行日志 | Insight |
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|------|---------|---------|
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| 内容 | 原始工具调用/输出 | 语义抽象 |
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| 示例 | "Ran Muon with lr=0.01, loss=0.043" | "轴统计量单独不够;替换 NS 会破坏全矩阵几何" |
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| 复用性 | 低(需人工解读) | 高(直接约束后续假设生成) |
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## 为什么需要
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没有抽象,树会退化为无结构日志——后续的 Ideate 和 Select 无法从历史中学习。Insight Backpropagation 是 HTR 从"探索日志"升级为"累积研究"的关键。
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## 参考
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- [[arbor-htr-2026]]
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- [[hypothesis-tree-refinement]]
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- [[coordinator-executor-architecture]]
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