论文标题
位置感知的自适应归一化:预测野火危险的深度学习方法
Location-aware Adaptive Normalization: A Deep Learning Approach For Wildfire Danger Forecasting
论文作者
论文摘要
预计气候变化将加剧并增加天气周期中的极端事件。由于这对我们生活的各个部门产生了重大影响,因此最近的著作与从地球观察结果中确定和预测这种极端事件有关。关于野火危险预测,以前的深度学习方法在时间维度沿着静态变量重复静态变量,而忽略了静态变量和动态变量之间的内在差异。此外,在功能学习阶段,大多数现有的多分支体系结构都将失去分支之间的互连。为了解决这些问题,本文提出了一个2D/3D两分支卷积神经网络(CNN),其中具有位置感知的自适应标准化层(贷款)。使用贷款作为构建基块,我们可以在其地理位置上调节动态特征。因此,我们的方法将特征属性视为统一但复合的2D/3D模型。此外,我们建议使用一年中的基于正弦的编码,以向模型提供有关一年中目标日的明确时间信息。我们的实验结果表明,在具有挑战性的Firecube数据集中,我们的方法的性能要比其他基线更好。结果表明,位置感知的自适应特征归一化是一种有前途的技术,可以学习动态变量及其地理位置之间的关系,这对于遥感数据建立了分析基础的领域高度相关。源代码可从https://github.com/hakamshams/loan获得。
Climate change is expected to intensify and increase extreme events in the weather cycle. Since this has a significant impact on various sectors of our life, recent works are concerned with identifying and predicting such extreme events from Earth observations. With respect to wildfire danger forecasting, previous deep learning approaches duplicate static variables along the time dimension and neglect the intrinsic differences between static and dynamic variables. Furthermore, most existing multi-branch architectures lose the interconnections between the branches during the feature learning stage. To address these issues, this paper proposes a 2D/3D two-branch convolutional neural network (CNN) with a Location-aware Adaptive Normalization layer (LOAN). Using LOAN as a building block, we can modulate the dynamic features conditional on their geographical locations. Thus, our approach considers feature properties as a unified yet compound 2D/3D model. Besides, we propose using the sinusoidal-based encoding of the day of the year to provide the model with explicit temporal information about the target day within the year. Our experimental results show a better performance of our approach than other baselines on the challenging FireCube dataset. The results show that location-aware adaptive feature normalization is a promising technique to learn the relation between dynamic variables and their geographic locations, which is highly relevant for areas where remote sensing data builds the basis for analysis. The source code is available at https://github.com/HakamShams/LOAN.