Martin Emms. Trainable Tree Distance and an Application to Question Categorisation. In Manfred Pinkal, Ines Rehbein, Sabine Schulte im Walde, Angelika Storrer, editors, Semantic Approaches in Natural Language Processing: Proceedings of the 10th Conference on Natural Language Processing, KONVENS 2010, September 6-8, 2010, Saarland University, Saarbrücken, Germany. pages 123-127, universaar, Universitätsverlag des Saarlandes / Saarland University Press / Presses universitaires de la Sarre, 2010.