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A multi-objective physics-informed machine learning framework for landslide susceptibility mapping
DOI:10.1080/17499518.2026.2653043.png)
摘要
En 中文
滑坡易发性制图(LSM)对区域地质灾害评估至关重要。然而,传统数据驱动模型往往无法捕捉坡体失稳机制,并产生科学上不一致的预测,特别是在地质复杂或数据有限的地区。本研究提出了一种新颖的物理信息机器学习(PIML)框架,将LSM表述为多目标优化问题。正-未标记(PU)装袋策略识别可靠的非滑坡样本,模型训练联合最小化三种互补损失:监督损失确保预测精度,物理一致性损失约束与安全系数(FoS)的单调关系,风险一致性损失约束与失效概率(PoF)的单调关系。FoS和PoF分别源自简化瞬态入渗模型(STIM)和一阶可靠性方法(FORM),被纳入模型训练以强制科学一致性。对中国甘肃省降雨诱发滑坡的案例研究表明,所提出的框架在精度和科学一致性之间实现了帕累托最优权衡。与基线相比,最优PIML模型在空间交叉验证下提高了平均AUC(0.882 vs. 0.870),减少了73%的不一致性,并优于基于物理的概率模型。结果表明,将岩土工程知识嵌入机器学习可生成既准确又科学合理的易发性图。
Keyword:
Landslide susceptibility mapping
physically-based model
probability of failure
first order reliability method (FORM)
physics-informed machine learning
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引用论文
Landslide susceptibility mapping using physics-guided machine learning: a case study of a debris flow event in Colorado Front Range
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Are real-world shallow landslides reproducible by physically-based models? Four test cases in the Laternser valley, Vorarlberg (Austria)
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Efficient reliability method for implicit limit state surface with correlated non-Gaussian variables具有相关非高斯变量的隐式极限状态面的有效可靠性方法
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