Machine Learning · June 2026
Laptop Price Prediction
Estimating laptop market prices in Indonesia from hardware specs.
- R² (5-fold CV)
- 0.913
- MAPE (5-fold CV)
- 8.46%
Overview
Built on a self-collected dataset of 583 listings scraped from the Agres marketplace. A stacking ensemble of XGBoost, LightGBM and CatBoost with a RidgeCV meta-learner, each base model tuned with Optuna. The full preprocessing pipeline is serialized with the model, so the Streamlit app passes raw inputs straight to it and benchmarks inference latency.
Tech stack
- Python
- XGBoost
- LightGBM
- CatBoost
- Optuna
- Streamlit
Team
Team of 3