20260706:新增一些文章
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concepts/deep-poly.md
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title: "DeepPoly"
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created: 2026-07-04
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updated: 2026-07-04
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type: concept
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tags: [verification, certification, convex-relaxation, neural-network]
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sources: ["Singh et al., 2019"]
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---
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# DeepPoly
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一种确定性不完整验证器,基于凸松弛对神经网络进行可微的抽象解释,给出 sound 但保守的鲁棒性保证。
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## 核心方法
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对神经网络逐层传播抽象域(abstract domain),用线性约束 over-approximate 每一层的输出范围。最终在输出层检查是否存在对抗样本。
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## 在鲁棒性认证中的定位
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属于**不完整验证**类别:保证找到的扰动范围内没有对抗样本(sound),但可能因过度近似而拒绝实际上安全的输入(conservative)。
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## 参考
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- [[robustness-certification|鲁棒性认证]]
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- [[crown-verifier|CROWN]]
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- [[randomized-smoothing|随机平滑]]
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