Lie Detection: The Truth Will Set You Free… or to Jail?

We all know people who believe that they can tell if you’re lying just by watching and listening. And most of us believe that our mothers were amazingly good at catching us in a lie. Some researchers at the University of Michigan developed software that does a better job than humans when it comes to judging the veracity of witnesses on the stand. Their software system quantified a number of speech patterns as well as expressions and gestures (all of which are fairly easy to extract with existing software today) and used machine learning to correlate them with the “truth”. The truth for the purposes of this study was considered to be the final judgment in the case. It turns out that the real world part of this data set…


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