The problem of ontology alignment on the Web: A first report Davide Fossati author Gabriele Ghidoni author Barbara Di Eugenio author Isabel Cruz author Huiyong Xiao author Rajen Subba author 2006 text Proceedings of the 2nd International Workshop on Web as Corpus conference publication fossati-etal-2006-problem https://aclanthology.org/W06-1708/ 2006