[goldmab]

What kind of thought process and/or experimentation led you to that algorithm?

[heyitsnick]

The original code links to:

http://stackoverflow.com/questions/653157/a-better-similarit...

where there is more discussion, and links out to different string similarity metrics

[MtotheThird]

I struggled to make LD work well, then someone smarter than me suggested the two character method. :)