Homework 6: Decision Trees and Ensemble Learning

Deadline: 2 November 2026 (Mon), 23:00

Shown in your timezone.

You can preview the questions, but submissions are saved only for logged-in students.

Questions

Answer the questions below to complete your homework.

1. Original splitting feature (1 point)

vehicle_weight

model_year

origin

fuel_type

2. RMSE on validation (1 point)

0.1837

1.837

18.37

183.7

3. Number of estimators (1 point)

100

150

4. Best max depth (1 point)

5. Most important feature (1 point)

vehicle_weight

horsepower

acceleration

engine_displacement

6. XGBoost eta (1 point)

0.3

0.1

Both give equal value