[학위논문] 『경제연구』 텍스트 마이닝 분석을 통한 북한 경제정책 변화 연구
...Korea's official media, and Kim Il-sung's University Journal were used complementarily. As a research method, frequency analysis, correlation analysis, cluster analysis, and
topic
modeling, which are text mining analysis methods, were conducted along with literature research. When analyzing big data that converts text into structured data using artificial intelligence...