ITC-irst at the 2006 TC-STAR SLT Evaluation Campaign

This paper reports on the participation of ITC-irst in the 2006 Spoken Language Translation Evaluation Campaign organized by the TC-STAR project. ITC-irst submitted runs for all translation directions, namely Spanish-to-English, English-to-Spanish and Chinese-to- English, and types of input, that is final text edition, human verbatim transcriptions and speech recognition output. Official results show that translations produced by our systems rank among the best ones. With respect to the translation systems we developed for the 2005 evaluation, BLEU scores were improved in every condition, from 17% up to 40% relative.