In this article, we will introduce the LightGBM Tuner in Optuna, a hyperparameter optimization framework, particularly designed for machine learning. The LightGBM Tuner is one of Optuna’s integration modules for optimizing hyperparameters of LightGBM. The usage of LightGBM Tuner is straightforward. You use LightGBM Tuner by changing one import statement in your Python code. Using expert heuristics