Kao I-Hsi, Perng Jau-Woei
Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung 804, Taiwan.
Results Phys. 2021 Jun;25:104287. doi: 10.1016/j.rinp.2021.104287. Epub 2021 May 8.
In November 2019, the coronavirus disease outbreak began, caused by the novel severe acute respiratory syndrome coronavirus 2. In just over two months, the unprecedented rapid spread resulted in more than 10,000 confirmed cases worldwide. This study predicted the infectious spread of coronavirus disease in the contiguous United States using a convolutional autoencoder with long short-term memory and compared its predictive performance with that of the convolutional autoencoder without long short-term memory. The epidemic data were obtained from the World Health Organization and the US Centers for Disease Control and Prevention from January 1st to April 6th, 2020. We used data from the first 366,607 confirmed cases in the United States. In this study, the data from the Centers for Disease Control and Prevention were gridded by latitude and longitude and the grids were categorized into six epidemic levels based on the number of confirmed cases. The input of the convolutional autoencoder with long short-term memory was the distribution of confirmed cases 14 days before, whereas the output was the distribution of confirmed cases 7 days after the date of testing. The mean square error in this model was 1.664, the peak signal-to-noise ratio was 55.699, and the structural similarity index was 0.99, which were better than those of the corresponding results of the convolutional autoencoder. These results showed that the convolutional autoencoder with long short-term memory effectively and reliably predicted the spread of infectious disease in the contiguous United States.
2019年11月,新型严重急性呼吸综合征冠状病毒2引发了冠状病毒病疫情。在短短两个多月的时间里,前所未有的快速传播导致全球确诊病例超过1万例。本研究使用带有长短期记忆的卷积自动编码器预测了冠状病毒病在美国本土的传染性传播,并将其预测性能与没有长短期记忆的卷积自动编码器的预测性能进行了比较。疫情数据取自世界卫生组织和美国疾病控制与预防中心2020年1月1日至4月6日的数据。我们使用了美国最初366,607例确诊病例的数据。在本研究中,疾病控制与预防中心的数据按经纬度网格化,网格根据确诊病例数分为六个疫情级别。带有长短期记忆的卷积自动编码器的输入是14天前确诊病例的分布,而输出是检测日期后7天确诊病例的分布。该模型的均方误差为1.664,峰值信噪比为55.699,结构相似性指数为0.99,均优于卷积自动编码器的相应结果。这些结果表明,带有长短期记忆的卷积自动编码器有效地、可靠地预测了冠状病毒病在美国本土的传播。