University of Illinois Develops Spam Remover to Keep Restaurant Reviews Real
By: Marissa Brassfield
Published: April 24, 2012

University of Illinois software engineers have developed a software that detects bogus reviews on websites such as Yelp. The program is named Group Spam Rank and targets those who spam using similar sentences and other certain behaviors.
The Group Spam Rank is a great way to help users find truthful reviews. Check out another way Yelp's trying to make it easier for users with its search options for vegans and vegetarians.