Product types in the hard disk drive (HDD) industry have different specifications depending on the customer orders. These specifications along with the machine parameters have a direct impact on the production yield. The problems on the manufacturing line are called the “root cause”. By accurately identifying the root cause, the engineers can suggest yield improvement solutions. Thus, the overall framework for the automatic solution generation is needed by several HDD companies. Our research is a part of such a framework. In this paper, we focus on the prediction technique required at the end of the analysis steps in order to...