Information Search, Integration, and Personalization 12th International Workshop, ISIP 2018, Fukuoka, Japan, May 14-15, 2018, Revised Selected Papers - Kotzinos, Dimitris; Kotzinos, Dimitris; Laurent, Dominique; Laurent, Dominique; Spyratos, Nicolas; Spyratos, Nicolas; Tanaka, Yuzuru; Tanaka, Yuzuru; Taniguchi, Rin-ichiro; Taniguchi, Rin-ichiro (Springer International Publishing : Imprint: Springer, 2019)