Author

Yan-Hai Xiong

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Preprint Oct 2026

A Compact Explicit 4D Representation for Dynamic Scenes

A compact dynamic-scene representation must retain both the surfaces seen over time and the appearance needed to render them from new viewpoints. We present Sparc4D, a feed-forward autoencoder that encodes a monocular video with known cameras into a sparse 4D scene state. Static features are shared across the clip, whi...

Di Yang, Zhi-Hao Li, Yan-Hai Xiong et al. · 0 citations

Preprint Sep 2026

VTV-FM: Flow Matching through Variational Terminal-Velocity Closure

Flow matching (FM) learns generative transport by fitting continuous-time motion from a simple source distribution to the data distribution. Most existing methods use first-order bridges: once a source and a target sample are paired, the path is a straight motion with constant velocity. FM with optimal transport (OT) i...

Hao-Yang Jiang, Yu-Heng Li, Di Yang et al. · 0 citations

#artificial intelligence Preprint Sep 2026

HyCO: A Hybrid Neural Solver for Combinatorial Optimization

This work proposes Hybrid Neural Solver for Combinatorial Optimization (HyCO), a hybrid inference algorithm that constructs a solution prefix with an RL solver and adaptively switches to a conditional DM to complete the remaining decisions, and designs a lightweight adaptive trigger that combines policy entropy and RL-...

Yu-Heng Li, Dian-Qiang Yang, Hai-Peng Chen et al. · 1 citation