T2-L03 — Support Vector Machine (SVM)

Margin · Soft margin C · Kernel trick · RBF γ

SVM — 2D Classifier với Kernel Selector

C=1
γ=1

Kernel Value Calculator

K_linear = x·x' · K_poly = (x·x'+c)^d · K_rbf = exp(−γ‖x−x'‖²)
1.0 2.0
3.0 4.0
γ=1 d=2

Validation Accuracy — Grid Search C × γ (RBF)

Simulated 5-fold CV accuracy trên non-linear dataset. Màu xanh = accuracy cao.

Heatmap cho thấy: C=1–10, γ=0.1–1 thường là vùng optimal.