本内容遵循CC 4.0 BY-SA版权协议 K折交叉验证（K-Fold Cross-Validation）这八个字，常被初学者当成一个“调参技巧”或“模型打分方法”，甚至有人把它和“留出法”混为一谈，觉得“不就是把数据切 ...

A new coalition that includes Google, Nvidia, Anthropic and Emerald AI wants to find 100 GW of grid capacity for new data centers.

In past articles for the Dispatch Energy newsletter, I’ve written about the American electricity industry, especially its technology, its regulation, and the pressures now coming from data centers.

Once feature engineering lives inside a Pipeline, each step is fitted on training data only, and the model is scored what it actually earned. And that is the idea behind this new cheat sheet. Most of ...