To explore different types of deceptive writing, we consider the following four datasets spanning from the product review to the essay domain: I. TripAdvisor-Gold: Introduced in <cite>Ott et al. (2011)</cite> , this dataset contains 400 truthful reviews obtained from www.tripadviser.com and 400 deceptive reviews gathered using Amazon Mechanical Turk, evenly distributed across 20 Chicago hotels.