Count-based State Merging for Probabilistic Regular Tree Grammars Toni Dietze author Mark-Jan Nederhof author 2015 text Proceedings of the 12th International Conference on Finite-State Methods and Natural Language Processing 2015 (FSMNLP 2015 Düsseldorf) Thomas Hanneforth editor Christian Wurm editor Association for Computational Linguistics conference publication dietze-nederhof-2015-count https://aclanthology.org/W15-4804/ 2015