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    <title>模型压缩 on Ge Zhang · 技术笔记</title>
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      <title>Optimal Brain Damage（OBD）：用 Hessian 判断权重重要性</title>
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      <description>从 Hessian 矩阵和二阶泰勒展开出发，推导 Optimal Brain Damage 如何估计删除单个权重造成的损失增量，并解释它为何优于单纯的幅值剪枝。</description>
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