Scientists have created a secure biometric password out of human laughter

Scientists from the Department of Systems Engineering, University of Lagos, Akoka, Lagos, Nigeria, have discovered that humans can

identify other people by the incomparable nature of their laughter. Unlike voice and speech patterns, laughter is almost impossible to imitate.

The researchers then identified variousthe sound frequencies in a person's laughter that can be used to create a digital signature are akin to the little things (hashes) generated by fingerprint scanners.

Approach tests show that their algorithmprototype recognition has an accuracy of 90%, which compares very favorably with the accuracy of 65% of the conventional Gaussian noise model. However, combining the developer's algorithm with a Gaussian approach can improve overall accuracy by more than 5 percent.

So laughter is viablebiometric function for identification of a person, which can be embedded in artificial intelligence systems in various applications, the team of scientists concludes.

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