The Dagstuhl Perspectives Workshop on Performance Modeling and Prediction. - Ferro, Nicola; Fuhr, Norbert; Grefenstette, Gregory; Konstan, Joseph A.; Castells, Pablo; Daly, Elizabeth M.; Declerck, Thierry; Ekstrand, Michael D.; Geyer, Werner; Gonzalo, Julio; Kuflik, Tsvi; Lindn, Krister; et al. (SIGIR Forum, 2018)