Advanced analytics and learning on temporal data 6th ECML PKDD Workshop, AALTD 2021, Bilbao, Spain, September 13, 2021 : revised selected papers - Lemaire, Vincent; Malinowski, Simon; Bagnall, Anthony; Guyet, Thomas; Tavenard, Romain; Ifrim, Georgiana (Lecture notes in artificial intelligence, 2021)