本文件供作者维护，不进入 HTML、目录或搜索。2026-10-03。读者熟悉线代和微积分，首次系统学习 SVM。理论保留手算、推导和交互；完整训练代码集中在后面的实践篇。研究资料截止日期保持 2026-10-02。 首页、00-python-start 代码先于模型意义；首页堆放实验元数据 ...

Deep learning is a subset of machine learning that uses artificial neural networks with multiple layers to automatically learn hierarchical representations from data. It powers modern breakthroughs in ...

A few years ago, I was solely responsible for an in-house demand forecasting model. The scores on the validation data were not bad. Yet, when I deployed it to production, the predictions were off. No ...