How to encode categorical features for GBDT | Ryuji Sakata | Kaggle Days

Kaggle Days Tokyo took place on December 11-12, 2019 at Mori Tower, Roppongi Hills, Tokyo. This was the 6th edition of our signature two-day event featuring Master and Grandmaster speakers, and a live, all-day Kaggle Competition. This edition was sponsored by Google Cloud (GCP), Data Science Dojo, and DeNA. Kaggle Days is produced by LogicAI and Kaggle. About LogicAI: LogicAI is a boutique Data Science consultancy company owned by Kaggle fans and Grandmasters. As a global company, they do custom end-to-