2026 arXiv FreeTimeGS++: Secrets of Dynamic Gaussian Splatting and Their Principles Lucas Yunkyu Lee*, Soonho Kim*, Youngwook Kim, Sangmin Kim, and Jaesik Park arXiv, 2026 paper npj Toward Spatially Sharper Precipitation Prediction via Global-Local Frequency Guidance Subin An, Youngwook Kim, Dongjin Cho, and Yoo-Geun Ham npj Climate and Atmospheric Science, In revision, 2026 paper