These include methods where source sentences are divided into syntactic chunks or clauses and the translations are merged later (Koehn and Knight, 2003;, methods where syntactic constraints or penalties for reordering are added to a decoder (Yamamoto et al., 2008;Cherry, 2008;Marton and Resnik, 2008;Xiong et al., 2010), and methods where source sentences are reordered into a similar word order as the target language in advance (Katz-Brown and Collins, 2008;Isozaki et al., 2010).
these methods did not use document-level context to constrain reorderings.