Hồi quy

Các thuật toán hỗ trợ

Thuật toán	Tham số	Mô tả
tuyen_tinh	-	Linear Regression
ridge	alpha	Ridge Regression
lasso	alpha	Lasso Regression
elastic_net	alpha, l1_ratio	Elastic Net
svm	C, kernel	SVR
cay_quyet_dinh	max_depth	Decision Tree
rung_ngau_nhien	n_estimators	Random Forest
gradient_boosting	n_estimators	Gradient Boosting

Ví dụ

from vietnamese_ai import HoiQuy, XuLySo

X_train, X_test, y_train, y_test = XuLySo.chia_du_lieu(X, y)

hq = HoiQuy(thuat_toan="gradient_boosting")
hq.huan_luyen(X_train, y_train)

bc = hq.bao_cao(X_test, y_test)
print(f"MSE: {bc['mse']:.2f}, R2: {bc['r2']:.4f}")

So sánh thuật toán

from vietnamese_ai import HoiQuy, XuLySo

for tt in ["tuyen_tinh", "ridge", "rung_ngau_nhien"]:
    hq = HoiQuy(thuat_toan=tt)
    hq.huan_luyen(X_train, y_train)
    bc = hq.bao_cao(X_test, y_test)
    print(f"{tt}: MSE={bc['mse']:.2f}, R2={bc['r2']:.4f}")