This is because the binary structure has been verified to be very effective for tree-based translation ( Wang et al. , 2007 ; Zhang et al. , 2011a ) .
binarizing syntax trees to improve syntaxbased machine translation accuracy
Wei Wang Kevin Knight Daniel Marcu
Differently , we require that each multi-word non-terminal node must have two child nodes . This is because the binary structure has been verified to be very effective for tree-based translation ( Wang et al. , 2007 ; Zhang et al. , 2011a ) . The generation process starts at root node N .
This is because the binary structure has been verified to be very effective for tree-based translation ( @@CITATION ; Zhang et al. , 2011a ) .