Tutorial: DeCour: a NLP experience of Deception Detection

In the last 10-15 years, NLP techniques have proven effective in a number of forensic applications, such as author profiling and deception detection. The tutorial will show the experience of DeCour - DEception in COURts -, a corpus constituted by transcripts of hearings held in four Italian courts, which was employed for a typical task of text classification carried out thorough stylometric techniques, in order to distinguish false from truthful statements. The process will be examined with particular attention to the methods employed, from the data collection, through the preprocessing and the feature selection. In the end, the data analysis and the results will be discussed.