Researchers at the University of Bradford have developed a machine learning ( ML ) algorithm that can identify gender from the movement of a person 's smile . The researchers mapped 49 " landmark " facial features observed when a person smiles , revealing that women tended to have broader grins than men . In tests , the resulting algorithm correctly identified the gender of the subject in 86 % of subjects . The lead researcher believed the success rate could be improved with the use of more sophisticated artificial intelligence , making it a viable biometric identification system .
Researchers at the University of Bradford have developed a machine learning (ML) algorithm that can identify gender from the movement of a person's smile. The scientists mapped 49 "landmark" facial features exhibited when a person smiles, revealing that women tended to have broader grins than men. In tests, the resulting algorithm correctly identified the gender of the subject in 86% of cases. The lead researcher believes the success rate could be improved with the use of more sophisticated artificial intelligence, making it a viable biometric identification system.