Christina Unger1 Philipp Cimiano1 Vanessa Lopez2 Enrico Motta3 Paul Buitelaar4 Richard Cyganiak4
1Semantic Computing Group, Universität Bielefeld, Bielefeld, Germany 2IBM Research, Smarter Cities Technology Centre, Mulhuddart, Dublin, Ireland 3Knowledge Media Institute, The Open University, Milton Keynes, UK 4DERI, National University of Ireland, Galway, Ireland