Alejandro Acien received the MSc in Electrical Engineering in 2015 from Universidad Autonoma de Madrid. In October 2016, he joined the Biometric Recognition Group - ATVS at the Universidad Autonoma de Madrid, where he is currently collaborating as an assistant researcher pursuing the PhD degree. The research activities he is currently working in Behaviour Biometrics, Human-Machine Interaction, Cognitive Biometric Authentication, Machine Learning and Deep Learning.

Javier Hernández-Ortega received the MSc in Electrical Engineering in 2015 from Universidad Autonoma de Madrid. In June 2016, he joined the Biometric Recognition Group - ATVS at the Universidad Autonoma de Madrid, where he is currently working as an assistant researcher pursuing the PhD degree. The research activities he is currently interested in include Biometrics based on Human-Computer Interaction, Pattern Recognition and Machine Learning.