Non-Local Modeling with a Mixture of PCFGs Slav Petrov author Leon Barrett author Dan Klein author 2006-06 text Proceedings of the Tenth Conference on Computational Natural Language Learning (CoNLL-X) Lluís Màrquez editor Dan Klein editor Association for Computational Linguistics New York City conference publication petrov-etal-2006-non https://aclanthology.org/W06-2903/ 2006-06 14 20