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Tianhong Zhao

3 accepted papers

2026

Sat2Flow: A Structure-Aware Diffusion Framework for Human Flow Generation from Satellite Imagery

AAAI 2026technical

Origin-Destination (OD) flow matrices are critical for urban mobility analysis, supporting traffic forecasting, infrastructure planning, and policy design. Existing methods face two key limitations: (1) reliance on costly auxiliary features (e.g., Points of Interest, socioeconomic statistics) with l

Cited by 0SourcePDFScholar
2025

Semantics-Guided Dynamic Hypergraph Network for Human Mobility Nowcasting in Disaster

ICASSP 2025accepted

Human mobility nowcasting is crucial for public safety, especially during disasters when human mobility significantly differs from normal patterns, posing unique challenges. Recent studies have shown a correlation between disaster-related social media information and abnormal patterns in human mobil…

Cited by 0SourceScholar
2025

SemiGPS: GraphGPS-based Semi-supervised Graph Learning for Sector-Specific GDP Mapping

ICASSP 2025accepted

Accurate forecasting of granular socioeconomic indicators, such as GDP, is essential for informed economic decision-making. Despite pioneering efforts to harness multi-modal data using traditional supervised or self-supervised learning methods for economic prediction, effectively integrating their f…

Cited by 0SourceScholar