3 papers
cs.AI2026
Aggregation Queries over Unstructured Text: Benchmark and Agentic Method
Haojia Zhu, Qinyuan Xu, Haoyu Li +4
Aggregation query over free text is a long-standing yet underexplored problem. Unlike ordinary question answering, aggregate queries require exhaustive evidence collection and syst…
cs.AI2025
Boundary Prompting: Elastic Urban Region Representation via Graph-based Spatial Tokenization
Haojia Zhu, Jiahui Jin, Dong Kan +4
Urban region representation is essential for various applications such as urban planning, resource allocation, and policy development. Traditional methods rely on fixed, predefined…
cs.AI2024
Urban Region Pre-training and Prompting: A Graph-based Approach
Jiahui Jin, Yifan Song, Dong Kan +5
Urban region representation is crucial for various urban downstream tasks. However, despite the proliferation of methods and their success, acquiring general urban region knowledge…