Congle Zhang, Raphael Hoffmann, Daniel S. Weld. Ontological Smoothing for Relation Extraction with Minimal Supervision. In Jörg Hoffmann, Bart Selman, editors, Proceedings of the Twenty-Sixth AAAI Conference on Artificial Intelligence, July 22-26, 2012, Toronto, Ontario, Canada. pages 157-163, AAAI Press, 2012. [doi]