Casino cheats rarely work alone, so identifying that moment when two or more suspicious people walk in is vital for a casino to stop cheating before it starts. One of the most interesting pieces of software they use to accomplish this is called NORA, short for Non-Obvious Relationship Analysis. It starts with surveillance footage from the casino floor, which is run against a database of known cheats. Once they’re identified, a huge public records crawl is run automatically to find connections between other casino guests and even employees. It doesn’t provide definitive results, but it does give investigators a head start in identifying potential cheats.
Photo credit: Flickr user runekrem via Creative Commons.