北大于江生教授关于机器学习入门介绍的三个PPT（pdf格式）：机器学习的基础：概率理论体系、机器学习概述、统计学习理论概述。共42页。-Peking University Professor Yu Jiangsheng on Machine Learning 3 PPT (pdf format): Machine Learning Foundations: probability theory, systems, machine learning overview, an overview of statistical learning theory. A total of 42 pages.