Identifying essential geological topics in South Korea based on a topic model with various statistical methods

Taeyong Kim, Pukyong National University, Division of Earth Environmental System Sciences, Busan, Korea, Republic of (South), Hyemin Park, Pukyong National University, Division of Earth Environmental System Science, Busan, Korea, Republic of (South) and Minjune Yang, Pukyong National University, Division of Earth and Environmental System Sciences-Major of Environmental Geosciences, Busan, South Korea