Certainly unique for tracking folks, looks filed June 27, 2011 and now applied in December 2012? Looks like a riddle to me on the abstract below LOL

IMO, not directly competitive to our NUNCHI but sure creates some noise with associations - can't hurt. I guess be careful on your Foursquare checkins, Facebook and Twitter traffic as this algo pulls and triangulates location tags and other noise to learn where you might be next! - Hello advertsiers or stalkers

Found reference; United States Patent Application #20120330959 "Method and Apparatus for Assessing a Person's Security Risk"

A method for assessing a person's security risk includes receiving data from a plurality of disparate data sources in which at least two of the plurality of disparate data sources maintain their respective data in different manners. The method also includes identifying at least one item of data from at least two different data sources that correspond to a first real-world person. The method further includes merging the items from the at least two different data sources into a first record associated with the first real-world person. The method additionally includes identifying one or more relationships between the first real-world person and one or more other real-world people. The method also includes adding the identified one or more relationships to the first record associated with the first real-world person. The method further includes determining a level of risk associated with the first real-world person based on the first record.