Optuna

Type: Product

As of November 2026, Optuna has been mentioned in one podcast episode on Kaggle (Aug 2025). In the episode "Kaggle Winners Walkthroughs: Child Mind Institute," Optuna is mentioned as a hyperparameter optimization tool that was used to enhance training methods. The speaker highlights its effectiveness in optimizing hyperparameters for models like XGBoost, CatBoost, and LightGBM, ensuring robust results through repeated stratified k-fold cross-validation.