After Efstratios completed his PhD with Prof. Arnold Smeulders and Dr. Cees Snoek in 2014 at the University of Amsterdam, he worked as a Post-doctoral Researcher at the KU Leuven with Prof. Tinne Tuytelaars. He has authored several papers in major Computer Vision and Multimedia conferences and journals, including CVPR, ICCV, ECCV, PAMI, IJCV, CVIU. His research interests include, but are not limited to, statistical and deep learning with applications on computer vision tasks, like object recognition, image captioning, action recognition, memory networks and recurrent networks, tracking.