%0 Conference Paper %B Empirical Methods in Natural Language Processing (EMNLP) %D 2007 %T The infinite PCFG using Dirichlet processes %A P. Liang %A S. Petrov %A D. Klein %A M. Jordan %C Prague, Czech Republic %U http://www.aclweb.org/anthology-new/D/D07/D07-1072.pdf %8 2007