Mark Craven Dan DiPasquo Dayne Freitag Andrew McCallum Tom M. Mitchell Kamal Nigam Seán Slattery Learning to construct knowledge bases from the World Wide Web. 69-113 2000 118 Artif. Intell. 1-2 db/journals/ai/ai118.html#CravenDFMMNS00 http://dx.doi.org/10.1016/S0004-3702(00)00004-7