Bernd Gutmann Angelika Kimmig Kristian Kersting Luc De Raedt Parameter Learning in Probabilistic Databases: A Least Squares Approach. 473-488 2008 ECML/PKDD (1) http://dx.doi.org/10.1007/978-3-540-87479-9_49 conf/pkdd/2008-1 db/conf/pkdd/pkdd2008-1.html#GutmannKKR08