These are my solutions (in Python) for the 2023 Cloudflight Coding Contest (AI Category), one of the largest coding competitions in Europe.
The prediction task posed from Level 5 onwards is a regression task using tabular data. I created a stacked ensemble from 40 base models of 3 algorithm types — Deep Neural Network, XGBoost, and LightGBM, which placed top 10% on the competition leaderboard within a training time of 1 hour.
I also wrote a Medium article, Stacked Ensembles for Advanced Predictive Modeling With H2O.ai and Optuna, where I provided a walk-through of my full code for training this stacked ensemble. This article was published in Towards Data Science, Medium's #1 Data Science publication.