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juni 22, 2003
Lying Words
Man kan med relativ hög sannolikhet (~67%) avgöra om en person ljuger eller talar sanning genom att analysera skriven text. Det hävdas i Lying Words - Predicting Deception from Linguistic Styles. Här undersöks olika typer av lingvistiska detektorer för vad som anses vara sanning respektive lögn.
Abstract:
Lying often involves telling a story that is either false or one that the individual doesn't believe. Most research has focused on identifying such lies through nonverbal cues or physiological activity. The current project investigates the linguistic styles that distinguish between true and false stories. In an analysis of five independent samples, a computer-based text
analysis program correctly classified liars and truth-tellers at a rate of 67% when the topic was constant and a rate of 61% overall. Compared to truth-tellers, liars used fewer self-references, other-references, and exclusive words and more 'negative emotion' and 'motion' words. Results are discussed in terms of 1) context-independent and context-dependent markers of deception, and 2) implications for the detection of deception.
Lite mer om detta projekt finns på http://www.simstat.com/LIWC.htm.
Posted by hakank at juni 22, 2003 12:50 EM Posted to Machine learning/data mining