Edu-mining for finding keywords to improve message-production skills

This paper describes an edu-mining technique for finding keywords to improve pupils´ message- production skills. It automatically finds keywords from blog items pupils create. It then adaptively suggests some of the keywords to pupils when they create new blog items so that they can revise their items using the keywords. Experiments show that it finds and suggests keywords surprisingly well despite its simple algorithm. They also show that pupils in an elementary school in Japan successfully improve the quality of blog items using the suggested keywords.