![Principal component analysis of facial photos](https://blogs.sas.com/content/sascom/files/2015/10/PicturePrincipalComponents.jpg)
Solving crime – and more – with principal component analysis
Imagine you're an investigator sorting through 6,000 mug shots taken at different jails around the state. You are tasked with finding all the mug shots of a high-profile con artist who has been arrested in multiple cities using a number of different aliases over the last five years. How can