官方笔记 https://doc.plob.org/machine_learning/ 详细笔记 http://www.ai-start.com/ml2014/ https://www.yuque.com/books/share/691358c9-4a47-442f-b1c1-193bcf9cba04?# 资料汇总 https://blog.csdn.net/dadapongi6/article/details/105668394。