Computer-Human Interaction Research and Applications: First International Conference, CHIRA 2017, Funchal, Madeira, Portugal, October 31 – November 2, 2017, Revised Selected Papers

Computer-Human Interaction Research and Applications: Second International Conference, CHIRA 2018, Seville, Spain, September 19-21, 2018 and Third International Conference, CHIRA 2019, Vienna, Austria, September 20-21, 2019, Revised Selected Papers