Author

Yizhou Zhang

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Book Open access Jun 2026

Coarse-to-Fine Multi-Resolution Diffusion Models for Trajectory Generation in Urban Systems

Understanding human mobility is critical for a wide range of urban applications, including traffic management, epidemic control, and urban planning. However, due to privacy concerns, the availability of large-scale public trajectory data remains limited, posing challenges for downstream mobility analysis. Existing meth...

Wente Ye, Mu-Yan Weng, Chui-Zheng Meng et al. · Proceedings of the 32nd ACM... · 0 citations

#artificial intelligence Preprint Sep 2026

A Function-Space Approach to the Statistical Mechanics of Learning Dynamics

In the kernel regime, neural-network learning inherits its preferences from a frozen spectrum. During feature learning, this spectrum evolves, yet networks retain systematic biases toward simple, smooth directions. We develop a function-space statistical framework explaining the origin of these preferences, treating fu...

Yizhou Zhang, Wei-Chen Wu, Lun Du et al. · 0 citations