论文标题
基于数据基于数据的社区级别COVID-19的预测模型
Fine-Grained Population Mobility Data-Based Community-Level COVID-19 Prediction Model
论文作者
论文摘要
预测抗流动过程中感染的数量对政府制定抗流动策略极为有益，尤其是在细粒度的地理单位中。以前的工作着重于低空间分辨率预测，例如县级和预处理数据到同一地理水平，这将失去一些有用的信息。在本文中，我们提出了一个基于两个地理水平的数据，用于社区级别的COVID-19预测，该模型（FGC-COVID）基于数据。我们使用比社区更细粒度的地理水平（CBG）之间的人口移动数据来构建图形，并使用图形神经网络（GNN）构建图形并捕获CBG之间的依赖关系。为了预测，为了预测更细粒的模式，引入了空间加权聚合模块，以将CBG的嵌入基于其地理隶属关系和空间自相关性汇总到社区级别。在300天LA COVID-19数据中进行的大量实验表明，我们的模型在社区级别Covid-19预测上的现有预测模型优于现有的预测模型。
Predicting the number of infections in the anti-epidemic process is extremely beneficial to the government in developing anti-epidemic strategies, especially in fine-grained geographic units. Previous works focus on low spatial resolution prediction, e.g., county-level, and preprocess data to the same geographic level, which loses some useful information. In this paper, we propose a fine-grained population mobility data-based model (FGC-COVID) utilizing data of two geographic levels for community-level COVID-19 prediction. We use the population mobility data between Census Block Groups (CBGs), which is a finer-grained geographic level than community, to build the graph and capture the dependencies between CBGs using graph neural networks (GNNs). To mine as finer-grained patterns as possible for prediction, a spatial weighted aggregation module is introduced to aggregate the embeddings of CBGs to community level based on their geographic affiliation and spatial autocorrelation. Extensive experiments on 300 days LA city COVID-19 data indicate our model outperforms existing forecasting models on community-level COVID-19 prediction.
