Xiaoyu Wang

OpFlow: Learning Opportunity-Conditioned Choice Potentials for Robust OD Flow Prediction

Changjian Liu, Yong Gao, Yuqing Wang, Leyi Su, Honglei Guo, Zhiyang Wang, et al.

Origin-destination (OD) flow prediction is central to urban analytics, yet deep models trained on raw counts remain vulnerable to distribution shift. The core problem is that raw count supervision cannot distinguish transferable choice mechanisms from environment-specific shortcu…Read more

Revisiting Decentralized Online Convex Optimization with Compressed Communication

Hao Zhou, Xiaoyu Wang, Chang Yao, Mingli Song, Yuanyu Wan

Decentralized online convex optimization (D-OCO) is a popular framework for distributed applications with streaming data. To tackle the communication bottleneck, previous studies have investigated D-OCO with compressed communication and proposed several algorithms that are varian…Read more

EO-VGGT: Orbital Ray-Conditioned 3D Foundation Models for Satellite Multi-View Reconstruction

Qiyan Luo, Yingdong Pi, Lekang Wen, Jie Yang, Xiaoyu Wang, Haiming Zhang, et al.

In the era of satellite constellations, multi-view optical satellite imagery is pivotal for Earth Observation (EO) and high-quality Digital Surface Model (DSM) reconstruction. Although feed-forward 3D foundation models have transformed computer vision, their deployment in satelli…Read more

Variance Reduction for Stochastic Gradient Generalized Non-reversible Langevin Monte Carlo Algorithms

Bingye Ni, Xiaoyu Wang, Yingli Wang, Lingjiong Zhu

We study the leading-order fluctuation of stochastic gradient Euler-Maruyama estimators for generalized non-reversible Langevin dynamics. Under structural assumptions tailored to the small-stepsize central limit theorem and under an unbiased stochastic gradient oracle, we prove t…Read more

Complex-valued optoelectronic hybrid neural networks for image classification based on optical 4F systems

Xinyang Tang, Shuaijun Yu, Xiaoyu Wang, Yaoge Zhang, Yishuo Wang, Yuanshan Liu