《Machine Learning in Action》—— 剖析支持向量机,优化SMO (2)

\[ \left\{ \begin{array}{c} \alpha_i=0 \quad <=> \quad y_i(w^T+b)\geq1\\ \alpha_i=C \quad <=> \quad y_i(w^T+b)\leq1\\ 0\leq\alpha_i\leq C \quad <=> \quad y_i(w^T+b)=1\\ \end{array} \right. \]

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