Build end-to-end projects with guided notebook steps.
Practice problems teach implementation. Projects teach workflow: load data, inspect it, model carefully, evaluate honestly, and explain the result. Each step gives you an empty code cell first, then a revealable reference solution.
House Price Prediction
Download public House Prices train/test CSVs, clean mixed numeric/categorical features, train a log-price regression model, validate RMSLE, and create submission.csv.
Digit Recognizer
Download public Digit Recognizer train/test CSVs, visualize flattened digit images, train a classifier, validate accuracy, and create submission.csv.
Titanic Survival Prediction
Download public Titanic CSV files, clean missing values, encode categorical features, train a classifier, and produce a submission-style CSV.
Facial Keypoints Detection
Download public Facial Keypoints training/test zips plus IdLookupTable, parse 96x96 image strings, train a baseline neural network, and create submission.csv.
NLP Disaster Tweets Classification
Download public disaster tweet CSVs, clean text lightly, train a TF-IDF baseline, evaluate F1, inspect errors, and create a submission-style file.
Store Sales Time Series Forecasting
Download public Store Sales CSVs, build time-based features, create validation by date, train a baseline model, and produce a forecast submission.