George Retsinas was born in 1989, in Sparta, Greece. He received the Diploma degree in Electrical and Computer Engineering from National Technical University of Athens in February 2014. His diploma thesis, supervised by Prof. Petros Maragos, tackled fingerspelling, a subtask of sing language recognition. He received his Ph.D. degree from the Department of Electrical and Computer Engineering of National Technical University of Athens in February 2020. Part of his Ph.D. (2015-2018) was done in collaboration with the Institute of Informatics and Telecommunications of the National Center for Scientific Research “Demokritos”. The main research direction during this collaboration was document analysis and recognition, with emphasis on machine learning approaches. Additional research directions, addressed during his PhD, included bio-signal processing and compression of deep neural networks. He has authored 17 papers in journals and conference proceedings and has participated in four national and European research projects. His main research interests are in Image Processing and Document Image Analysis, Pattern Recognition, Deep Learning, Algorithms and Mathematical Optimization.