kernel functlon的用法和樣例：
例句
- So they have better performance than adaptive Gaussian kernel.
因而，相對于自適應高斯核函數而言，兩者性能更優(yōu)。 - As for the undivided linear sample space, the kernel function is needed to map onto another high dimension linear space.
對于線(xiàn)性不可分的樣本空間，需要尋找核函數，將線(xiàn)性不可分的樣本集映射到另一個(gè)高維線(xiàn)性空間。
