Method of and an apparatus for automatically evaluating machine translation system through comparison of their translation results with human translated sentences

摘要

To evaluate by a computer translated sentences obtained from a machine translation system so as to automatically and objectively evaluate quality of the system, a method and an apparatus are provided for automatically evaluating translated sentences. The method includes a first translated sentence analysis step of analyzing sentences resulted from a machine translation, a second translated sentence analysis step of analyzing favorable translated sentences for original sentences, a word/phrase coupling step of analyzing correspondence of words and phrases between the two translated sentences for the same original sentence, and a similarity calculating step of computing similarity between the two translated sentences according to ratios of words and phrases thus related to each other and similarity of the related words and phrases, thereby evaluating the sentences generated through the machine translation.