Neil Zhang

Machine Learning Design Process

In practice, one can usually do much better with a correct application of a commonplace algorithm than by sloppily applying an obscure algorithm.

1. Determine Performance Metrics

• Determine what error…

VIM Tricks

What is ^I characters?

They’re tabs. By default, VIM shows all control characers other than EOL as ^n where n is the character of the alphabet corresponding to the character being shown (tab = char #9, I = 9th char in alphabet). To stop showing them, use :set nolist…

LINUX Shell: Tricks and Tips

Check number of fields in a text file

awk -F, ‘{print NF}’ filename