Pedro Domingos Stanley Kok Daniel Lowd Hoifung Poon Matthew Richardson Parag Singla 92-117 2008 Probabilistic Inductive Logic Programming http://dx.doi.org/10.1007/978-3-540-78652-8_4 conf/ilp/2008p db/conf/ilp/lncs4911.html#DomingosKLPRS08