3 papers
cs.LG2026
TrajTok: Adaptive Spatial Tokenization for Trajectory Representation Learning
Zhen Xiong, Shang-Ling Hsu, Cyrus Shahabi
Learning generalizable trajectory representations from raw GPS traces remains difficult because the data is continuous, noisy, and irregularly sampled. Spatial tokenization is also…
cs.CV2026
Mamba-VGGT: Persistent Long-Sequence Video Geometry Grounded Transformer via External Sliding Window Mamba Memory
Tianchen Deng, Zhenxiang Xiong, Nailin Wang +4
Visual Geometry Grounded Transformers (VGGT) have set new benchmarks in high-fidelity 3D scene reconstruction. However, as the sequence length increases, these models suffer from c…
cs.CV2025
Robust and Efficient 3D Gaussian Splatting for Urban Scene Reconstruction
Zhensheng Yuan, Haozhi Huang, Zhen Xiong +2
We present a framework that enables fast reconstruction and real-time rendering of urban-scale scenes while maintaining robustness against appearance variations across multi-view c…