Department of Computer Science & Engineering, Korea University, Seoul, Republic of Korea.
PLoS One. 2020 Dec 11;15(12):e0242758. doi: 10.1371/journal.pone.0242758. eCollection 2020.
The COVID-19 pandemic has spread all over the globe. In the absence of a vaccine, a small number of countries have managed to control the diffusion of viruses by early detection and early quarantine. South Korea, one of the countries which have kept the epidemics well-controlled, has opened the infected patients' trajectory to the public. Such a reaction has been regarded as an effective method, however, serious privacy breach cases have been issued in South Korea. Furthermore, some suspected contacts have refused to take infection tests because they are afraid of being exposed. To solve this problem, we propose a privacy-preserving contact tracing method based on spatio-temporal trajectory which can be practically used in many quarantine systems. In addition, we develop a system to visualize the contact tracing workflow.
新冠疫情已经在全球范围内蔓延。在没有疫苗的情况下，少数国家通过早期检测和早期隔离成功控制了病毒的扩散。韩国是控制疫情较好的国家之一，它向公众公开了感染者的活动轨迹。这种做法被认为是一种有效的方法，但在韩国也出现了严重的隐私泄露案件。此外，一些疑似接触者因为担心暴露而拒绝接受感染测试。为了解决这个问题，我们提出了一种基于时空轨迹的隐私保护接触者追踪方法，可以在许多隔离系统中实际使用。此外，我们还开发了一个系统来可视化接触者追踪工作流程。
