暑期SMALE魔鬼训练day5

暑期SMALE魔鬼训练day5
上午：

写出上述 Definition 4中的 $\mathbf{U},\mathbf{C},\mathbf{D}和\mathbf{U}$ 注：最后两个属性为决策属性.

U = { x 1 , x 2 , … , x 7 } \mathbf{U} = \{x_1, x_2, \dots, x_7\} U={x1​,x2​,…,x7​}
$\mathbf{C}$ = {Headache, Temperature, Lymphocyte, Leukocyte, Eosinophil}
$\mathbf{D}$ = {Heartbeat, Flu}
$\mathbf{V}$ = {Normal, Abnormal, Yes, No}

定义一个标签分布系统：

A label distribution system is a tuple$S=(\mathbf{X},\mathbf{Y})$where$\mathbf{X}=[x_{ij}{]}_{n\times m}\in {\mathbb{R}}^{n\times m}$
is the data matrix, $\mathbf{Y}=[y_{ik}{]}_{n\times l}\in [0,1{]}^{n\times l}$is the label matrix, and ${\sum }_{k=1}^l{y}_{ik}=1$, where $n$ is the number of instances, $m$ is the number of features, and $l$ is the number of labels.