Our previous work ( Zhai et al. , 2012 ) designed an EMbased method to construct unsupervised trees for tree-based translation models .
treebased translation without using parse trees
Feifei Zhai Jiajun Zhang Yu Zhou Chengqing Zong
For unsupervised tree structure induction , DeNero and Uszkoreit ( 2011 ) adopted a parallel parsing model to induce unlabeled trees of source sentences for syntactic pre-reordering . Our previous work ( Zhai et al. , 2012 ) designed an EMbased method to construct unsupervised trees for tree-based translation models . This work differs from the above work in that we design a novel Bayesian model to induce unsupervised U-trees , and prior knowledge can be encoded into the model more freely and effectively .
Our previous work ( @@CITATION ) designed an EMbased method to construct unsupervised trees for tree-based translation models .