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一种基于人工智能的新冠肺炎大流行深度学习预测与自动统计数据采集系统:开发与实施研究

A COVID-19 Pandemic Artificial Intelligence-Based System With Deep Learning Forecasting and Automatic Statistical Data Acquisition: Development and Implementation Study.

作者信息

Yu Cheng-Sheng, Chang Shy-Shin, Chang Tzu-Hao, Wu Jenny L, Lin Yu-Jiun, Chien Hsiung-Fei, Chen Ray-Jade

机构信息

Department of Family Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.

Department of Family Medicine, Taipei Medical University Hospital, Taipei, Taiwan.

出版信息

J Med Internet Res. 2021 May 20;23(5):e27806. doi: 10.2196/27806.

Abstract

BACKGROUND

More than 79.2 million confirmed COVID-19 cases and 1.7 million deaths were caused by SARS-CoV-2; the disease was named COVID-19 by the World Health Organization. Control of the COVID-19 epidemic has become a crucial issue around the globe, but there are limited studies that investigate the global trend of the COVID-19 pandemic together with each country's policy measures.

OBJECTIVE

We aimed to develop an online artificial intelligence (AI) system to analyze the dynamic trend of the COVID-19 pandemic, facilitate forecasting and predictive modeling, and produce a heat map visualization of policy measures in 171 countries.

METHODS

The COVID-19 Pandemic AI System (CPAIS) integrated two data sets: the data set from the Oxford COVID-19 Government Response Tracker from the Blavatnik School of Government, which is maintained by the University of Oxford, and the data set from the COVID-19 Data Repository, which was established by the Johns Hopkins University Center for Systems Science and Engineering. This study utilized four statistical and deep learning techniques for forecasting: autoregressive integrated moving average (ARIMA), feedforward neural network (FNN), multilayer perceptron (MLP) neural network, and long short-term memory (LSTM). With regard to 1-year records (ie, whole time series data), records from the last 14 days served as the validation set to evaluate the performance of the forecast, whereas earlier records served as the training set.

RESULTS

A total of 171 countries that featured in both databases were included in the online system. The CPAIS was developed to explore variations, trends, and forecasts related to the COVID-19 pandemic across several counties. For instance, the number of confirmed monthly cases in the United States reached a local peak in July 2020 and another peak of 6,368,591 in December 2020. A dynamic heat map with policy measures depicts changes in COVID-19 measures for each country. A total of 19 measures were embedded within the three sections presented on the website, and only 4 of the 19 measures were continuous measures related to financial support or investment. Deep learning models were used to enable COVID-19 forecasting; the performances of ARIMA, FNN, and the MLP neural network were not stable because their forecast accuracy was only better than LSTM for a few countries. LSTM demonstrated the best forecast accuracy for Canada, as the root mean square error (RMSE), mean absolute error (MAE), and mean absolute percentage error (MAPE) were 2272.551, 1501.248, and 0.2723075, respectively. ARIMA (RMSE=317.53169; MAPE=0.4641688) and FNN (RMSE=181.29894; MAPE=0.2708482) demonstrated better performance for South Korea.

CONCLUSIONS

The CPAIS collects and summarizes information about the COVID-19 pandemic and offers data visualization and deep learning-based prediction. It might be a useful reference for predicting a serious outbreak or epidemic. Moreover, the system undergoes daily updates and includes the latest information on vaccination, which may change the dynamics of the pandemic.

摘要

背景

新型冠状病毒(SARS-CoV-2)已导致超过7920万例确诊的新冠肺炎病例和170万人死亡;该疾病被世界卫生组织命名为新冠肺炎。控制新冠肺炎疫情已成为全球的关键问题,但研究全球新冠肺炎大流行趋势以及各国政策措施的研究有限。

目的

我们旨在开发一个在线人工智能(AI)系统,以分析新冠肺炎大流行的动态趋势,促进预测和预测建模,并生成171个国家政策措施的热图可视化。

方法

新冠肺炎大流行人工智能系统(CPAIS)整合了两个数据集:一个是由牛津大学布拉瓦尼克政府学院维护的牛津新冠肺炎政府应对追踪器的数据集,另一个是由约翰霍普金斯大学系统科学与工程中心建立的新冠肺炎数据存储库的数据集。本研究利用四种统计和深度学习技术进行预测:自回归积分移动平均(ARIMA)、前馈神经网络(FNN)、多层感知器(MLP)神经网络和长短期记忆(LSTM)。对于1年的记录(即整个时间序列数据),最后14天的记录用作验证集以评估预测性能,而早期记录用作训练集。

结果

在线系统纳入了两个数据库中均有的171个国家。CPAIS旨在探索多个国家与新冠肺炎大流行相关的变化、趋势和预测。例如,美国每月确诊病例数在2020年7月达到一个局部峰值,并在2020年12月达到另一个峰值6368591例。带有政策措施的动态热图描绘了每个国家新冠肺炎措施的变化。网站展示的三个部分共包含19项措施,其中19项措施中只有4项是与财政支持或投资相关的持续性措施。深度学习模型用于进行新冠肺炎预测;ARIMA、FNN和MLP神经网络的性能不稳定,因为它们的预测准确性仅在少数几个国家优于LSTM。LSTM对加拿大的预测准确性最高,其均方根误差(RMSE)、平均绝对误差(MAE)和平均绝对百分比误差(MAPE)分别为2272.551、1501.248和0.2723075。ARIMA(RMSE=317.53169;MAPE=0.4641688)和FNN(RMSE=181.29894;MAPE=0.2708482)在韩国表现更好。

结论

CPAIS收集并汇总了有关新冠肺炎大流行的信息,并提供数据可视化和基于深度学习的预测。它可能是预测严重疫情爆发的有用参考。此外,该系统每日更新,并包含有关疫苗接种的最新信息,这可能会改变大流行的动态。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c88d/8139395/771c5c2750ae/jmir_v23i5e27806_fig1.jpg

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