评价指标

类别A

类别B

准确率

$\frac{{\text{A}}_{\text{1}}}{{\text{A}}_{\text{2}}}\text{*}100\text{\%}$

$\frac{{\text{B}}_1}{{\text{B}}_2}\text{*}100\text{\%}$

召回率

$\frac{{\text{A}}_{\text{1}}}{{\text{A}}_{\text{3}}}\text{*}100\text{\%}$

$\frac{{\text{B}}_{\text{1}}}{{\text{B}}_{\text{3}}}\text{*}100\text{\%}$

F1

$2\text{*}\frac{\frac{{\text{A}}_{\text{1}}}{{\text{A}}_{\text{2}}}\text{*}\frac{{\text{A}}_{\text{1}}}{{\text{A}}_{\text{3}}}}{\frac{{\text{A}}_{\text{1}}}{{\text{A}}_{\text{2}}}+\frac{{\text{A}}_{\text{1}}}{{\text{A}}_{\text{3}}}}\text{*}100\text{\%}$

$2\text{*}\frac{\frac{{\text{B}}_{\text{1}}}{{\text{B}}_{\text{2}}}\text{*}\frac{{\text{B}}_{\text{1}}}{{\text{B}}_{\text{3}}}}{\frac{{\text{B}}_{\text{1}}}{{\text{B}}_{\text{2}}}+\frac{{\text{B}}_{\text{1}}}{{\text{B}}_{\text{3}}}}\text{*}100\text{\%}$