图 书 馆
从社会互动的角度模拟疾病传播Modeling Spread of Disease from Social Interactions |
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| 课程网址: | http://videolectures.net/icwsm2012_sadilek_interacions/ |
| 主讲教师: | Adam Sadilek |
| 开课单位: | 罗切斯特大学 |
| 开课时间: | 2012-07-06 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | Research in computational epidemiology to date has concentrated on coarse-grained statistical analysis of populations, often synthetic ones. By contrast, this paper focuses on fine-grained modeling of the spread of infectious diseases throughout a large real-world social network. Specifically, we study the roles that social ties and interactions between specific individuals play in the progress of a contagion. We focus on public Twitter data, where we find that for every health-related message there are more than 1,000 unrelated ones. This class imbalance makes classification particularly challenging. Nonetheless, we present a framework that accurately identifies sick individuals from the content of online communication. Evaluation on a sample of 2.5 million geo-tagged Twitter messages shows that social ties to infected, symptomatic people, as well as the intensity of recent co-location, sharply increase one's likelihood of contracting the illness in the near future. To our knowledge, this work is the first to model the interplay of social activity, human mobility, and the spread of infectious disease in a large real-world population. Furthermore, we provide the first quantifiable estimates of the characteristics of disease transmission on a large scale without active user participation---a step towards our ability to model and predict the emergence of global epidemics from day-to-day interpersonal interactions. |
| 关 键 词: | 流行病学; 统计分析 |
| 课程来源: | 视频讲座网 |
| 数据采集: | 2020-09-27：zkj |
| 最后编审: | 2020-10-22：zyk |
| 阅读次数: | 40 |