The Leaf Path Projection View of Parse Trees: Exploring String Kernels for HPSG Parse Selection Kristina Toutanova author Penka Markova author Christopher Manning author 2004-07 text Proceedings of the 2004 Conference on Empirical Methods in Natural Language Processing Dekang Lin editor Dekai Wu editor Association for Computational Linguistics Barcelona, Spain conference publication toutanova-etal-2004-leaf https://aclanthology.org/W04-3222/ 2004-07 166 173