Hyperparameters & Tuning with GridSearchCV

Day 17 of 100 Days of MLOps. Every model has settings you choose before training — a tree's depth, a model's strength — and the defaults are rarely optimal. Learn hyperparameters and use GridSearchCV to search for the best combination automatically, cross-validating every candidate so the tuning is honest and leak-free. Take a model from default to measurably better. Runs 100% locally on any OS.