Advances in information retrieval 39th European Conference on IR Research, ECIR 2017, Aberdeen, UK, April 8-13, 2017 : proceedings - Jose, Joemon M.; Hauff, Claudia; Altıngovde, Ismail Sengor; Song, Dawei; Albakour, Dyaa; Watt, Stuart; Tait, John (Springer, 2017)