Graph-Based Seed Set Expansion for Relation Extraction Using Random Walk Hitting Times Joel Lang author James Henderson author 2013-06 text Proceedings of the 2013 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies Lucy Vanderwende editor Hal Daumé III editor Katrin Kirchhoff editor Association for Computational Linguistics Atlanta, Georgia conference publication lang-henderson-2013-graph https://aclanthology.org/N13-1094/ 2013-06 772 776