A Practically Unsupervised Learning Method to Identify Single-Snippet Answers to Definition Questions on the Web Ion Androutsopoulos author Dimitrios Galanis author 2005-10 text Proceedings of Human Language Technology Conference and Conference on Empirical Methods in Natural Language Processing Raymond Mooney editor Chris Brew editor Lee-Feng Chien editor Katrin Kirchhoff editor Association for Computational Linguistics Vancouver, British Columbia, Canada conference publication androutsopoulos-galanis-2005-practically https://aclanthology.org/H05-1041/ 2005-10 323 330