In order to illustrate the performance of the different reordering models, we consider two training sentences taken from the IWSLT 2010 DIALOG task.
for the previous orientation weight, the probability P c (p, o) of the phrase pair p having a given orientation o, considering the set P rev(o), with all phrase pairs that are linked to p that would lead to a orientation o, is given by: In this equation, α(p ) is the number of paths to the p node from the first phrase, β(p) is the number of paths from p to the last phrase and β(bs) results in the number of possible paths.