2014斯坦福大学机器学习mkv视频 Lecture11.pptx

Machine learning

system design

Prioritizing what to

work on: Spam

classification example

Machine Learning

Andrew Ng

Building a spam classifier

From: cheapsales@buystufffromme.com

available.

From: Alfred Ng

To: ang@cs.stanford.edu

Subject: Christmas dates?

Hey Andrew,

Was talking to Mom about plans

for Xmas. When do you get off

work. Meet Dec 22?

Alf

Andrew Ng

Building a spam classifier

Supervised learning. features of email. spam (1) or not spam (0).

in training set, rather than manually pick 100 words.