ITI-CERTH participation in TRECVID 2020. - Konstantinos Gkountakos; Damianos Galanopoulos; Marios Mpakratsas; Despoina Touska; Anastasia Moumtzidou; Konstantinos Ioannidis; Ilias Gialampoukidis; Stefanos Vrochidis; Vasileios Mezaris; Ioannis Kompatsiaris (TRECVID, 2020)