Experimental IR Meets Multilinguality, Multimodality, and Interaction 10th International Conference of the CLEF Association, CLEF 2019, Lugano, Switzerland, September 9-12, 2019, Proceedings - Crestani, Fabio; Crestani, Fabio; Braschler, Martin; Braschler, Martin; Savoy, Jacques; Savoy, Jacques; Rauber, Andreas; Rauber, Andreas; Müller, Henning; Müller, Henning; Losada, David E.; Losada, David E.; et al. (Springer International Publishing : Imprint: Springer, 2019)