... Proceedings of the 47th Annual Meeting of the ACL and the 4th IJCNLP of the AFNLP, pages 306–314,Suntec, Singapore, 2-7 August 2009.c2009 ACL and AFNLP The Contribution of Linguistic Features to ... ithtranslation in the manual ranking.Being Qh(t) and Qm(t) the human and met-ric assessed quality for the translation t, and beingrankh(t) and rankm(t) the rank of the translationt according to ... considerably to the systems optimization process. However, the key point is that the combined metric, ULC, im-proves all the others (5.79 vs. 5.71), indicating the importance of combining n-gram and linguis-tic...