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arXiv 2201.10395cs.CVcs.LG
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基于图卷积网络的建筑物跨灾损失评估

Towards Cross-Disaster Building Damage Assessment with Graph Convolutional Networks

American University of Beirut(贝鲁特美国大学)

Ali Ismail, Mariette Awad

摘要:

在灾害发生后,使用变化检测来获得建筑物损坏地图以规划救援行动。目前的卷积神经网络方法没有考虑相邻建筑物之间的相似性来预测损坏。我们提出了一种新的基于图形的建筑物损坏检测解决方案,以捕捉这些关系。我们提出的模型架构从局部和邻域特征中学习,以预测建筑物损坏。具体来说,我们采用样本和聚合图卷积策略来学习聚合函数,这些聚合函数可以推广到看不见的图,这对于减轻获得新灾害预测所需的时间至关重要。我们在xBD数据集上的实验以及与经典卷积神经网络的比较表明,虽然我们的方法受到类不平衡的阻碍,但在跨灾难泛化方面,它具有很大的优势。

英文摘要:

In the aftermath of disasters, building damage maps are obtained using change detection to plan rescue operations. Current convolutional neural network approaches do not consider the similarities between neighboring buildings for predicting the damage. We present a novel graph-based building damage detection solution to capture these relationships. Our proposed model architecture learns from both local and neighborhood features to predict building damage. Specifically, we adopt the sample and aggregate graph convolution strategy to learn aggregation functions that generalize to unseen graphs which is essential for alleviating the time needed to obtain predictions for new disasters. Our experiments on the xBD dataset and comparisons with a classical convolutional neural network reveal that while our approach is handicapped by class imbalance, it presents a promising and distinct advantage when it comes to cross-disaster generalization.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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