Martin Emms. Adapting Tree Distance to Answer Retrieval and Parser Evaluation. In Hamid R. Arabnia, Elena B. Kozerenko, Sebastian Shaumyan, editors, Proceedings of The 2005 International Conference on Machine Learning, Models, Technologies and Applications, MLMTA 2005, Las Vegas, Nevada, USA, June 27-30, 2005. pages 53-59, CSREA Press, 2005.