System Combination of RBMT plus SPE and Preordering plus SMT

摘要

System architecture, experimental settings and evaluation results of EHR group in the en-ja, zh-ja, JPCzh-ja and JPCko-ja tasks are described. Our system concept is combination of a rule based method and a statistical method. System combination of rule-based machine translation (RBMT), RBMT plus statistical post-editing (SPE) and preordering plus statistical machine translation (SMT) is conducted. From the multiple outputs of three systems, candidate selection part selects the best output by language model score. For JPCzh-ja task devtest data translation, SPE improves BLEU score by 17.81, preordering improves BLEU score by 1.89 and system combination improves BLEU score by 0.26.