====== libin shen, jinxi xu and ralph weischedel (bbn) ======

BBN string to dependency
pravdepodobnost stromu

 rule extractor:


deneefe et al 2007

well formed strcutures
type 1 ok
type 2 left siblings
type 3 right siblings

based in TAG
left joins
left concatenates

dependency language model
p(child|parent_H, siblings...*)

extension of Hiero

trigram siblings
wittenbell smoothning
no much diff mst versus magerman



featers pro reranking
collins and johnnson 05