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Tianhui Liu

3 accepted papers

2026

CityLens: Evaluating Large Vision-Language Models for Urban Socioeconomic Sensing

ICLR 2026poster

Understanding urban socioeconomic conditions through visual data is a challenging yet essential task for sustainable urban development and policy planning. In this work, we introduce CityLens, a comprehensive benchmark designed to evaluate the capabilities of Large Vision-Language Models (LVLMs) in…

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2025

Mitigating Geospatial Knowledge Hallucination in Large Language Models: Benchmarking and Dynamic Factuality Aligning

EMNLP 2025

Large language models (LLMs) possess extensive world knowledge, including geospatial knowledge, which has been successfully applied to various geospatial tasks such as mobility prediction and social indicator prediction. However, LLMs often generate inaccurate geospatial knowledge, leading to geospa

2025

UrbanLLaVA: A Multi-modal Large Language Model for Urban Intelligence

ICCV 2025poster

Urban research involves a wide range of scenarios and tasks that require the understanding of multi-modal data, such as structured geospatial data, trajectory data, satellite image data, and street view image data. Current methods often focus on specific data types and lack a unified framework in ur…