Interactive Labs
Concepts you can drag, not just read — plus visual walkthroughs of the parts of CPMAI the exam loves to test at the application level.
Interactive labs
Classification Metrics Lab
Underfitting, overfitting, the imbalance trap — trigger each failure mode, watch train vs test data, the bias–variance target and both AUC curves react, and learn the remedy.
Open the lab →Data Pipeline Navigator
Run one fraud-detection project through the whole CPMAI data lifecycle — profile the 4 V's, validate at the source, govern lineage, label, size, explore, cleanse, encode, balance and split. Twelve live simulations; every decision carries forward into a generated readiness report.
Sign in to open →Visual walkthroughs
Data Understanding and Data Preparation
Every Phase II & III activity with its owner, one continuous clinic-chatbot example, two go/no-go gates, the Phase III master sequence and 360+ tap-to-explain terms.
Sign in to open →ML Training Pipeline, Illustrated
From a ready dataset through the seven-step training cycle, nested cross-validation, aggregation and the final retrain — every number on the page consistent with the next.
Full access with: CPMAI Exam Bundle
Open the lab →Nested Cross-Validation, Every Loop
K = 5 outer folds, I = 10 inner folds, 3 hyperparameter sets — all 156 training runs written out, one score per run, one honest estimate, one shipped model.
Full access with: CPMAI Exam Bundle
Open the lab →