Pieter Wolfert obtained his Master's degree in Artificial Intelligence in 2018 at Radboud University, Nijmegen - The Netherlands. He wrote his thesis on 'Online engagement prediction in child-robot interaction' at Tilburg University, where he was part of the European funded L2TOR project. In his thesis he used machine learning techniques to design a data driven model that would be capable of capturing the engagement of children with a robot in a child-robot tutoring task. Currently he is a PhD student at Ghent University supervised by Prof. Tony Belpaeme, where his focus is on social robotics and machine learning. As a PhD student he is a member of IDLab, a research group embedded in Ghent University and imec.