Courtroom fibs used to develop lie-detecting software

There's a challenge when you're developing new lie-detection software – you can get people to lie for you in a lab setting, but their behaviour won't be the same as it would be in a real-world scenario. In order to see authentic lying behaviour, you need to go somewhere where the stakes for the liars are higher. That's why scientists from the University of Michigan turned to videos of courtroom testimonies.

Led by professors Rada Mihalcea and Mihai Burzo, the researchers used machine-learning techniques to analyze 120 video clips of actual trials. Based on the outcome of those trials, they knew which witnesses were (presumably) lying when they were on the stand.

http://www.gizmag.com/courtroom-lie-detection-software/40880/

 

Wow..the progress of technology is amazing if that is what they can pinpoint out the liar using the video clips! I have heard that many people can trick the lie detector machine even if when they are not truthful. For some though, their nervousness was translated as lies too.