Artificial Intelligence in HCI : Second International Conference, AI-HCI 2021, held as part of the 23rd HCI International Conference, HCII 2021, Virtual event, July 24-29, 2021, Pr... by AI-HCI (Conference) (2nd : 2021 : Online), organiser 642919, Degen, Helmut, 1964-, editor 642920, Ntoa, Stavroula, editor 642921, International Conference on Human-Computer Interaction (23rd : 2021 : Online), organiser 642922