Collapsed Variational Bayesian Inference for PCFGs Pengyu Wang author Phil Blunsom author 2013-08 text Proceedings of the Seventeenth Conference on Computational Natural Language Learning Julia Hockenmaier editor Sebastian Riedel editor Association for Computational Linguistics Sofia, Bulgaria conference publication wang-blunsom-2013-collapsed https://aclanthology.org/W13-3519/ 2013-08 173 182