ARTDECO: Toward High-Fidelity On-the-Fly Reconstruction with Hierarchical Gaussian Structure and Feed-Forward Guidance - Li, Guanghao; Ren, Kerui; Xu, Linning; Zheng, Zhewen; Jiang, Changjian; Gao, Xin; DAI, Bo; Pu, Jian; Yu, Mulin; Pang, Jiangmiao (International Conference on Learning Representations, 2026)