UPM system for the translation task Verónica López-Ludeña author Rubén San-Segundo author 2011-07 text Proceedings of the Sixth Workshop on Statistical Machine Translation Chris Callison-Burch editor Philipp Koehn editor Christof Monz editor Omar F Zaidan editor Association for Computational Linguistics Edinburgh, Scotland conference publication lopez-ludena-san-segundo-2011-upm https://aclanthology.org/W11-2151/ 2011-07 420 425