Compound nouns consisting of a sequence of nominals are easily composed and used very often in Japanese documents. While this feature gives an expressive power to the language, it is a big problem in machine translation systems. We offer a method to rewrite the Japanese compound nouns into their equivalent expressions so that machine translation systems may use them as substitutes for the original compound nouns. An experiment of using the rewritten expressions in a machine translation system shows that our effort helps improve its performance considerably.

This paper describes a writer's aid system that helps the Japanese write sound English sentences. Our system takes as input a Japanese writing and its English translation produced by a commercial machine translation system. It then extracts, from the Internet Corpus, English sentences and expressions usable for correcting and/or polishing the translation to suit our specific purpose. An experiment for writing correspondences in conferences and others shows that the system is easy to use and improves the writings by machines or humans considerably in effort, style, and content.

In many disciplines, the introductory courses are well standardized as to what should be covered, how the subject is to be taught, and how student's performance is to be measured. Such is certainly not the case in Computer Science, where we constantly debate what should be taught, what programming language is to be used, the nature of assignments to be given, etc.