Recent wildfires in the United States have resulted in loss of life and billions of dollars, destroying countless structures and forests. Fighting wildfires is extremely complex. It is difficult to observe the true state of fires due to smoke and risk associated with ground surveillance. There are limited resources to be deployed over a massive area and the spread of the fire is challenging to predict. This paper proposes a decision-theoretic approach to combat wildfires. We model the resource allocation problem as a partially-observable Markov decision process. We also present a data-driven model that lets us simulate how fires spread as a function of relevant covariates. A major problem in using data-driven models to combat wildfires is the lack of comprehensive data sources that relate fires with relevant covariates. We present an algorithmic approach based on large-scale raster and vector analysis that can be used to create such a dataset. Our data with over 2 million data points is the first open-source dataset that combines existing fire databases with covariates extracted from satellite imagery. Through experiments using real-world wildfire data, we demonstrate that our forecasting model can accurately model the spread of wildfires. Finally, we use simulations to demonstrate that our response strategy can significantly reduce response times compared to baseline methods.
翻译:美国最近的野火造成了生命损失和数十亿美元的损失,摧毁了无数的建筑和森林。野火是极其复杂的。由于烟雾和地面监视带来的风险,很难观察真正的火灾状态。在大面积地区部署的资源有限,火灾的蔓延是难以预测的。本文件建议采取决策理论方法来扑灭野火。我们把资源分配问题作为部分可观测的Markov决策过程来模型。我们还提出了一个数据驱动模型,让我们模拟火灾是如何作为相关恒星的函数传播的。使用数据驱动模型来扑灭野火的一个主要问题是缺乏与相关恒星的火灾相关的综合数据源。我们提出了一个基于大规模光栅和向量分析的算法方法,可以用来创建这样的数据集。我们拥有200多万个数据点的数据是第一个开放源数据集,将现有的消防数据库与从卫星图像中提取的共变异体结合起来。通过实验,我们用现实世界野火数据来模拟火灾的一个主要问题是缺乏与相关恒星相关的火灾相关的火灾相关的全面数据源。我们提出了一种基于大规模光和向量的分析方法的算法方法。我们的数据模型最终可以精确地模拟我们的野火反应。