Guilherme Ramos received the B.Sc. (2011) and M.Sc. (2013) in Applied Mathematics, and Ph.D. in Information Security (2018) from the Instituto Superior Técnico, Lisbon, Portugal. From 2018 to 2020, he was a postdoctoral researcher with the Institute for Systems and Robotics at IST (ISR/IST). Since 2020, he is a postdoctoral researcher at the Department of Electrical and Computer Engineering (DEEC), Faculty of Engineering, University of Porto (FEUP). His areas of interest include structural systems, cryptography, information theory, ranking and recommendation Systems.