Predicting whether metastatic triple negative breast cancer was diagnosed within 90 days of screening. A diverse 25-model zoo reached 0.792 AUC on the private leaderboard, and the analysis behind it shows the score is mostly a screening-date proxy and that the model is least accurate for Black patients.
How it knows: Every ensemble score is nested, with weights and pruning refitted inside their own folds, and the AUC is decomposed by pair to show how much of it the coding era alone supplies.
Nicholas Smith - all work