Paper: Verification and Implementation of Language-Based Deception Indicators in Civil and Criminal Narratives

ACL ID C08-1006
Title Verification and Implementation of Language-Based Deception Indicators in Civil and Criminal Narratives
Venue International Conference on Computational Linguistics
Session Main Conference
Year 2008
Authors

Our goal is to use natural language proc- essing to identify deceptive and non- deceptive passages in transcribed narra- tives. We begin by motivating an analy- sis of language-based deception that relies on specific linguistic indicators to discover deceptive statements. The indi- cator tags are assigned to a document us- ing a mix of automated and manual methods. Once the tags are assigned, an interpreter automatically discriminates between deceptive and truthful state- ments based on tag densities. The texts used in our study come entirely from “real world” sources—criminal state- ments, police interrogations and legal tes- timony. The corpus was hand-tagged for the truth value of all propositions that could be externally verified as true or false. Classification a...