In Chicago, just 32 food inspectors are responsible for auditing the city’s more than 15,000 restaurants. The city is experimenting with a new technology to guide where inspections should occur, based on factors such as current weather, nearby construction and past health code violations.

http://www.washingtonpost.com/business/on-it/in-chicago-food-inspectors-are-guided-by-big-data/2014/09/27/96be8c68-44e0-11e4-b47c-f5889e061e5f_story.html