Did you know Researchers Are Working on an AI Lie Detector, Here’s How it Works
Machine learning has allowed researchers to make it so that computer can
get smarter on their own. This comes with a slew of new applications,
and Japanese researchers
working at the University of Tokyo recently drew up plans to create a
lie detector that would leverage machine learning as well as AI. Such a
development can be useful because of the fact that this is the sort of
thing that could potentially end up having applications in crime
prevention among other areas.
With all of that having been said
and now out of the way, it is important to note that this deception
detection system can analyze the face of an individual in order to
ascertain the truthfulness of their statements. Data was collected from
four male grad students, with the subjects being asked to purposefully
lie about images that they were being shown.
Using a camera,
researchers took down the facial expressions that participants made
while they were lying as per the instructions they were provided. Once
the session was completed, the participants were asked to point out when
they were lying and when they were telling the truth with all things
having been considered and taken into account.
The deception
detection model was created using the Random Forest machine learning
technique, and it compiled data such as pulse measurements and facial
expressions. This data set will likely serve to make the AI far more
accurate than might have been the case otherwise.
The accuracy of
the model was estimated to be anywhere between 75% to 80%, and it might
become an exceptionally useful tool on all fronts. In spite of the fact
that this is the case, the dataset is still quite limited, and the
study will have to be conducted on a much wider scale in order to see if
the results are still replicable. It will be interesting to see if more
tests of this variety are done in the future, since they will be
crucial for determining the overall efficacy of this deception test and
others like it that are also being developed.
