Zero-Shot Human Mobility Forecasting via Large Language Model with Hierarchical Reasoning

• URL: http://arxiv.org/abs/2509.16578v1
• Date: Sat, 20 Sep 2025 08:46:38 GMT
• Title: Zero-Shot Human Mobility Forecasting via Large Language Model with Hierarchical Reasoning
• Authors: Wenyao Li, Ran Zhang, Pengyang Wang, Yuanchun Zhou, Pengfei Wang,
• Abstract summary: ZHMF is a framework for zero-shot human mobility forecasting.<n>It combines a semantic enhanced retrieval and reflection mechanism with a hierarchical language model based reasoning system.
• Score: 27.096256356447117
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Human mobility forecasting is important for applications such as transportation planning, urban management, and personalized recommendations. However, existing methods often fail to generalize to unseen users or locations and struggle to capture dynamic intent due to limited labeled data and the complexity of mobility patterns. We propose ZHMF, a framework for zero-shot human mobility forecasting that combines a semantic enhanced retrieval and reflection mechanism with a hierarchical language model based reasoning system. The task is reformulated as a natural language question answering paradigm. Leveraging LLMs semantic understanding of user histories and context, our approach handles previously unseen prediction scenarios. We further introduce a hierarchical reflection mechanism for iterative reasoning and refinement by decomposing forecasting into an activity level planner and a location level selector, enabling collaborative modeling of long term user intentions and short term contextual preferences. Experiments on standard human mobility datasets show that our approach outperforms existing models. Ablation studies reveal the contribution of each module, and case studies illustrate how the method captures user intentions and adapts to diverse contextual scenarios.

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