In New Scientist. Can lies be detected? A new kind of emotion detection. " ... An AI system trained on false statements is highly accurate at spotting deceptive language in written or spoken testimony. It can also be used to weed out fake online reviews of books, hotels and restaurants.
The system is the work of computational linguists Massimo Poesio at the University of Essex in Colchester, UK, and Tommaso Fornaciari at the Center for Mind/Brain sciences in Trento, Italy. It is based on a technique called stylometry, which counts how often certain words appear in a passage. ... "