%0 Journal Article %T Exploring the AI Topic Composition of K-12 Using NMF-based Topic Modeling %A Woo, HoSung %A Kim, JaeHong %A Kim, JaMee %A Lee, WonGyu %A , %J International Journal on Advanced Science, Engineering and Information Technology %@ 2088-5334 %D 2020-08-12 %I Insight Society %~ DeepDyve