Abstract
Needless to say, failure analysis and maintenance (Kaizen) are important in any industry field. However, it requires great deal of experience and long time for operators to analyze the failures efficiently and effectively. This is the reasons why the reports could not be used as knowledge for problem resolution even though the troubleshooting reports have been stored sufficiently. In this article, cause-effect structure is employed as knowledge representation. The structure is acquired from the text documents of the trouble shooting reports. Experiments were conducted to evaluate the method.
