A. Sanchez-Rico, P. Garel, I. Notarangelo, M. Quintana, G. Hernandez, S. Asteriadis, M. Popa, N. Vretos, V. Solachidis, M. Burgos, A. Girault, "ICT Services for Life Improvement for the Elderly", Studies in health technology and informatics, 242, p.600.
I. Tsingalis, N. Vretos, P. Daras, "Leveraging Skeleton Structure and Time Dependencies in the Scope of Action Recognition", IEEE International Conference on Image Processing, ICIP 2018, Oct 7-10, Athens, Greece
C. Chrysouli, N. Vretos, P. Daras, "Affective State Recognition based on Eye Gaze Analysis using Two-Stream Convolutional Networks", IEEE International Workshop on Machine Learning for Signal Processing, MLSP 2018, Sept 17-20, Aalborg, Denmark
E. Spyrou, N. Vretos, A. Pomazanskyi, S. Asteriadis, H. Leligou, "Exploiting IoT Technologies for Personalized Learning", Computational Intelligence and Games (CIG), Maastricht, The Netherlands, August 14-17, 2018
D. Tsatsou, A. Pomazanskyi, E. Hortal, E. Spyrou, H. Leligou, S. Asteriadis, N. Vretos, P. Daras, "Adaptive learning based on affect sensing", International Conference on Artificial Intelligence in Education. London, UK, June 27-30, 2018.
V. Solachidis, I. Paliokas, N. Vretos, K. Votis, U. Cortιs, D. Tzovaras, "Two examples of online eHealth platforms for supporting people living with cognitive impairments and their caregivers", in PErvasive Technologies Related to Assistive Environments (PETRA), Corfu, Greece, 26-29 Jun. 2018 (to appear).
A. Belmonte-Hernandez, V. Solachidis, T. Theodoridis, G. Hernandez, G. Conti, N. Vretos, P. Daras, F. Alvarez, "Person Tracking Association Using Multi-modal Systems", 14th IEEE International Conference on Advanced Video and Signal Based Surveillance (AVSS), Lecce, Italy, 29 Aug – 1 Sept, 2017
D. Christopoulos, E. Hatzi, A. Chatzitofis, N. Vretos, P. Daras, "Future Media Internet Technologies for Digital Domes", 16th International Conference on Human-Computer Interaction (HCI International 2014), 22 - 27 June 2014, Creta Maris, Heraklion, Crete, Greece
N. Vretos, N. Nikolaidis, I. Pitas, " A Model Based Facial Expression Recognition Algorithm using Principal Components Analysis", IEEE International Conference on Image Processing 2009 (ICIP 09), Cairo, Egypt, 7-11 November 2009.