Marcelo Arenas, Director of the Center for Semantic Web Research, will be one of the two Research Track Chairs of the International Semantic Web Conference 2015 (ISWC 2015). The ISWC conference is one of the most important conference series regarding the Web in general and the Semantic Web in particular. Researchers from some of the most important groups around the world submit their works to this conference, and being the chair of the Research Track is one of the most important tasks in the conference organization.