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---
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title: "Partial Dependence Plots"
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type: concept
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tags: [interpretability, feature-analysis, ml-ops]
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sources: [specialized-model-qa]
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last_updated: 2026-04-20
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---
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## Definition
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偏依赖图（PDP）展示某个特征变化时，模型平均预测如何变化，用于分析边际效应。
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## Use in Model QA
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- 验证单调性假设
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- 识别非线性阈值
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- 检查特征与预测之间的边际关系
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## Limitations
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- 在强相关特征下可能误导
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- 更适合做辅助解释而非唯一依据
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## Related Concepts
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- [[SHAP Analysis]]
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- [[Model Audit]]
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