As someone who studies R machine learning and applies it to my work, I think this is the best cost-effective lecture that can help me understand not only text mining but also the overall machine learning concept, and improve my R coding skills, and that can simultaneously capture both practical applicability and skill improvement. The last lecture, LDA, was a bit difficult, but... If I ever need a similar analysis later, I think I can watch the lecture again and apply it~~ I would like to express my gratitude to the instructor for providing such a high-quality lecture at a very low price... I will see you again in the next lecture. ㅎㅎ