 Through empirical analysis , we interpret the classification results from the viewpoint of economics .
<meaning-changed>  Through empirical analysis , we interpret the classification results from the viewpoint of economics .
 Through empirical analysis , we devised new architecture to enable neural networks to conduct PU learning based on the idea of multi-task learning to efficiently learn a classifier. Our empirical analysis confirmed that the proposed method could separate the future economic conditions, and we interpreted the classification results from the viewpoint of economics .