[Doc] Add Kaggle Playground S5E3 winning XGBoost solution to demo list#12149
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[Doc] Add Kaggle Playground S5E3 winning XGBoost solution to demo list#12149DevTahaAwan wants to merge 1 commit intodmlc:masterfrom
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Pull request overview
Updates the documentation list of machine-learning challenge winning solutions in demo/README.md by adding a new Kaggle Playground Series S5E3 first-place solution entry, addressing the request in issue #6173.
Changes:
- Add Kaggle Playground Series S5E3 (Flood Prediction) 1st-place solution entry to the “Machine Learning Challenge Winning Solutions” section.
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| - Chris Deotte, 1st place winner of [Kaggle Playground Series S5E2 - Backpack Prediction Challenge](https://www.kaggle.com/competitions/playground-series-s5e2) (Feb 2025). A single XGBoost model with 500 engineered features. Link to [discussion](https://www.kaggle.com/competitions/playground-series-s5e2/discussion/565539). | ||
| - Chris Deotte, 1st place winner of [Kaggle Playground Series S5E4 - Predict Podcast Listening Time](https://www.kaggle.com/competitions/playground-series-s5e4) (Apr 2025). A three-level ensemble that includes XGBoost/GBDT models. Link to [writeup](https://www.kaggle.com/competitions/playground-series-s5e4/writeups/chris-deotte-1st-place-rapids-cuml-stack-3-levels) and [technical blog](https://developer.nvidia.com/blog/grandmaster-pro-tip-winning-first-place-in-a-kaggle-competition-with-stacking-using-cuml/). | ||
| - Mohammad Odeh, 1st place winner of [March Machine Learning Mania 2025](https://www.kaggle.com/competitions/march-machine-learning-mania-2025) ($50K prize). XGBoost outperformed CatBoost and LightGBM. Link to [writeup](https://www.kaggle.com/competitions/march-machine-learning-mania-2025/writeups/mohammad-odeh-first-place-solution). | ||
| - - Jovan Sardinha, 1st place winner of [Kaggle Playground Series S5E3 - Regression with a Flood Prediction Dataset](https://www.kaggle.com/competitions/playground-series-s5e3) (Mar 2025). XGBoost-based solution achieving top performance on flood prediction. Link to [discussion](https://www.kaggle.com/competitions/playground-series-s5e3/discussion/572901). |
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This list item has an extra leading dash (- - Jovan ...), which breaks the Markdown list formatting compared to the surrounding entries. Remove the extra - so it matches the other - Name, ... bullets.
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Closes #6173
Added the 1st place winning solution from Kaggle Playground Series Season 5, Episode 3 (S5E3) - Regression with a Flood Prediction Dataset (March 2025) to the Machine Learning Challenge Winning Solutions section in demo/README.md.
This updates the list as requested in issue #6173.