P. Pantel, и M. Pennacchiotti. Ontology Learning and Population: Bridging the Gap between Text and Knowledge, том 167 из Frontiers in Artificial Intelligence and Applications, IOS Press, (2008)
Y. Li, R. Krishnamurthy, S. Raghavan, S. Vaithyanathan, и H. Jagadish. Proceedings of the 2008 Conference on Empirical Methods in Natural Language Processing, стр. 21--30. Honolulu, Hawaii, Association for Computational Linguistics, (октября 2008)