The Semantic Web. Latest Advances and New Domains 12th European Semantic Web Conference, ESWC 2015, Portoroz, Slovenia, May 31 – June 4, 2015. Proceedings - Gandon, Fabien; Sabou, Marta; Sack, Harald; d’Amato, Claudia; Cudré-Mauroux, Philippe; Zimmermann, Antoine (Springer International Publishing : Imprint: Springer, 2015)