让大模型学会空间推理,快速辅助灾情应对决策
GeoResponder: Towards Building Geospatial LLMs for Time-Critical Disaster Response
- 分层训练框架将地理知识锚定在坐标空间中
- 在4个不同城市测试中显著优于现有模型
- 适合需要实时地理分析的应急响应场景
大语言模型在语言任务上表现优异,但在时间紧迫的灾情响应中缺乏必要的空间推理能力,如道路网络分析、坐标理解以及对医院、庇护所和药店等关键设施的访问判断。我们提出GeoResponder框架,通过分阶段的指令微调课程,强化模型的空间认知能力。该框架将地理学习划分为不同认知层次,将语义知识与连续坐标空间对齐,并强制内化空间公理。在四个拓扑结构不同的城市及多种任务上的广泛评估表明,GeoResponder显著优于当前最先进的基础模型和领域专用基线。结果表明,大语言模型开始具备内化并泛化地理结构的能力,预示着未来可构建支持灾情响应需求的语言模型。
原文摘要 · Abstract (English)
LLMs excel at linguistic tasks but lack the inner geospatial capabilities needed for time-critical disaster response, where reasoning about road networks, coordinates, and access to essential infrastructure such as hospitals, shelters, and pharmacies is vital. We introduce GeoResponder, a framework that instills robust spatial reasoning through a scaffolded instruction-tuning curriculum. By stratifying geospatial learning into different cognitive layers, we anchor semantic knowledge to the continuous coordinate manifold and enforce the internalization of spatial axioms. Extensive evaluations across four topologically distinct cities and diverse tasks demonstrate that GeoResponder significantly outperforms both state-of-the-art foundation models and domain-specific baselines. These results suggest that LLMs can begin to internalize and generalize geospatial structures, pointing toward the future development of language models capable of supporting disaster response needs.
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