Detecting the Untranslatable Colloquial Expressions of Japanese Verbs in Cross-Language Instant Messaging

Using instant messenger in real time communication is widespread worldwide. However, in the communication of using cross-language (Japanese other languages) instant messaging, the use of colloquial expressions usually degrades the efficiency of communication. The contributions of our research can be split into two parts: (1) we analyzed the in-house conversation logs of business correspondence to obtain the cause of the failure of translation in cross-language instant messaging conversations; (2) we proposed an automatic system to detect the untranslatable colloquial expressions of Japanese verbs that are the most significant cause of the failure of JapaneseChinese (and Japanese-English) machine translation in instant message conversation.