A Survey on Gradient Boosting Decision Tree

The Hong Kong University of Science and Technology (Guangzhou)

数据科学与分析学域

PhD Qualifying Examination

By Mr.Hanfeng LIU

摘要

This survey offers an in-depth review of Gradient Boosting Decision Trees (GBDT), a key machine learning algorithm known for its high predictive accuracy and broad applicability. Originating from adaptive boosting concepts, GBDT combines decision trees with boosting to create a potent ensemble method. We trace GBDT’s development from its theoretical roots to its extensive use in industries such as finance, healthcare, and marketing. The survey focuses on advanced variants like XGBoost, LightGBM, and CatBoost, which have significantly improved GBDT’s efficiency and scalability. We also cover contemporary challenges in training GBDT models, including integration with other machine learning frameworks. We also show our attempts to enhance GBDT with innovate methods, like predefined structural learning, PSO-enhanced optimization, and GPU acceleration for multi-output models. By detailing empirical results, this work underscores the continuous evolution of GBDT and explores emerging trends that may influence its future in our data-driven world.

PQE Committee

Chairperson: Prof. Nan TANG

Prime Supervisor: Prof Zeyi WEN

Co-Supervisor: Prof Qiong LUO

Examiner: Prof Xinlei HE