Machine Learning on Chengyu Wanghttps://chengyu.eu/tags/machine-learning/Recent content in Machine Learning on Chengyu WangHugo -- gohugo.ioen© 2026 ChengyuWed, 31 Jul 2024 00:00:02 +0000AI Study Notes: Probability Density Functions and Weighted MSEhttps://chengyu.eu/posts/ai-study-notes-pdf-and-mse/Wed, 31 Jul 2024 00:00:02 +0000https://chengyu.eu/posts/ai-study-notes-pdf-and-mse/Working through two ML fundamentals in plain language: what a probability density function actually tells you, and how weighting by probability density changes mean squared error.