Skip to content

Latest commit

 

History

History
26 lines (21 loc) · 1.38 KB

2017-11-26-Advanced Feature Engineering.md

File metadata and controls

26 lines (21 loc) · 1.38 KB
layout title categories description keywords
post
特征工程
机器学习
特征工程
特征工程

有这么一句话在业界广泛流传:数据和特征决定了机器学习的上限,而模型和算法只是逼近这个上限而已。那特征工程到底是什么呢?顾名思义,其本质是一项工程活动,目的是最大限度地从原始数据中提取特征以供算法和模型使用。特征工程是一个非常重要的课题,是机器学习中不可缺少的一部分,机器学习实践的成功与否很大程度上取决于如何特征工程。

The process of feature engineering

  1. Brainstorming or Testing features;
  2. Deciding what features to create;
  3. Creating features;
  4. Checking how the features work with your model;
  5. Improving your features if needed;
  6. Go back to brainstorming/creating more features until the work is done.

参考: