使用图形神经网络推断COVID-19感染的推断
Kyungwoo Song1, Hojun Park2, Junggu Lee3
1Department of Applied Statistics, Yonsei University, Seoul, 03722, Republic of Korea.
Scientific reports
|July 15, 2023
概括
这项研究开发了一种使用图形神经网络预测COVID-19传播的自动工具. 纳入联系信息显著提高了识别未来感染的准确性.
科学领域:
- 流行病学 流行病学
- 机器学习 机器学习
- 网络科学 网络科学
背景情况:
- 传染病需要有效的流行病学调查,以确定高风险的传播者并减少传播.
- 目前的方法对流行病学家来说可能是繁重的,强调了对自动化工具的需求.
研究的目的:
- 开发一种自动化流行病学调查工具,以预测COVID-19感染个体对未来感染的影响.
- 利用图形神经网络 (GNN) 来提高预测准确性.
主要方法:
- 利用一组已确认的COVID-19病例数据集,包括交互细节 (联系顺序,时间,路线) 和个体属性 (症状).
- 应用了两个GNN变体:图形卷积网络和图形注意网络.
- 将GNN性能与传统机器学习模型进行比较.
主要成果:
- 与传统的机器学习方法相比,基于图形的模型显示出更高的性能.
- 曲线下的面积为第二,第三和第四顺序的扩散预测,分别提高了0.200,0.269和0.190.
- 联系信息被认为是预测未来感染的关键因素.
结论:
- 感染者的接触网络对于预测他们对未来传播的影响至关重要.
- 在自动化调查中整合关系数据显著提高了流行病学预测的有效性.
相关概念视频
Neural Circuits
1.3K
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
1.3K
Ogive Graph
5.7K
An ogive graph is sometimes called a cumulative frequency polygon. It is one type of frequency polygon that shows cumulative frequency. In other words, the cumulative percentages are added to the graph from left to right. An ogive graph plots cumulative frequency on the vertical y-axis and class boundaries along the horizontal x-axis. It’s very similar to a histogram; only instead of rectangles, an ogive displays a single point where the top right of the rectangle would be. Creating this...
5.7K
Time-Series Graph
4.4K
A time-series graph is a line graph with repeated measurements taken at successive intervals of time. It is also called a time series chart. To construct a time-series graph, one must look at both pieces of a paired data set. The horizontal axis is used to plot the time increments, and the vertical axis is used to plot the values of the variable that one is measuring. By using the axes in this way, each point on the graph will correspond to time and a measured quantity. The points on the graph...
4.4K
End Point Prediction: Gran Plot
386
A Gran plot is used to predict the equivalence volume or endpoint of a potentiometric or acid-base titration without reaching the endpoint. Typically, titration data is collected as a function of the titrant's volume up to a point less than the equivalence volume and then transformed into a linear format. The straight line is extended to the x-axis, indicating the necessary titrant volume to achieve the equivalence point.
For potentiometric titration, the Gran plot is created by plotting...
For potentiometric titration, the Gran plot is created by plotting...
386
Pareto Chart
6.8K
A Pareto chart is a bar graph or a combination of both line and bar graphs. The bar lengths represent the individual values or the frequency, while the lines represent the cumulative total values. In this chart, the longest bars are arranged on the left and the shortest bars on the right, which makes it easier to read and interpret the data. It can also be called a Pareto diagram or Pareto analysis.
The Pareto chart is named after the Italian economist Vilfredo Pareto, who described the Pareto...
The Pareto chart is named after the Italian economist Vilfredo Pareto, who described the Pareto...
6.8K
Steps in Outbreak Investigation
153
In the ever-evolving field of public health, statistical analysis serves as a cornerstone for understanding and managing disease outbreaks. By leveraging various statistical tools, health professionals can predict potential outbreaks, analyze ongoing situations, and devise effective responses to mitigate impact. For that to happen, there are a few possible stages of the analysis:
153


