Okapi+QuEst: Translation Quality Estimation within Okapi Gustavo Henrique Paetzold author Lucia Specia author Yves Savourel author 2015-05 text Proceedings of the 18th Annual Conference of the European Association for Machine Translation İlknur Durgar El-Kahlout editor Mehmed Özkan editor Felipe Sánchez-Martínez editor Gema Ramírez-Sánchez editor Fred Hollowood editor Andy Way editor Antalya, Turkey conference publication paetzold-etal-2015-okapi-quest https://aclanthology.org/W15-4940/ 2015-05 222