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Testing capacity for COVID-19 remains a challenge globally due to the lack of adequate supplies, trained personnel, and sample-processing equipment. These problems are even more acute in rural and underdeveloped regions. We demonstrate that…

The spread of COVID-19 revealed that transmission risk patterns are not homogenous across different cities and communities, and various heterogeneous features can influence the spread trajectories. Hence, for predictive pandemic monitoring,…

Machine Learning · Computer Science 2022-09-22 Junwei Ma , Bo Li , Qingchun Li , Chao Fan , Ali Mostafavi

AI plays an important role in COVID-19 identification. Computer vision and deep learning techniques can assist in determining COVID-19 infection with Chest X-ray Images. However, for the protection and respect of the privacy of patients,…

Image and Video Processing · Electrical Eng. & Systems 2020-07-14 Boyi Liu , Bingjie Yan , Yize Zhou , Yifan Yang , Yixian Zhang

This document describes and analyzes a system for secure and privacy-preserving proximity tracing at large scale. This system, referred to as DP3T, provides a technological foundation to help slow the spread of SARS-CoV-2 by simplifying and…

During the COVID-19 epidemic, many health professionals started using mass communication on social media to relay critical information and persuade individuals to adopt preventative health behaviors. Our group of clinicians and nurses…

Contacts between people are the absolute drivers of contagious respiratory infections. For this reason, limiting and tracking contacts is a key strategy for the control of the COVID-19 epidemic. Digital contact tracing has been proposed as…

Computers and Society · Computer Science 2022-12-01 Chiara Boldrini , Andrea Passarella , Marco Conti

We propose a communication-driven mechanism for predicting triadic closure in complex networks. It is mathematically formulated on the basis of communicability distance functions that account for the quality of communication between nodes…

Social and Information Networks · Computer Science 2015-05-08 Ernesto Estrada , Francesca Arrigo

Contact tracing is a well-established and effective approach for the containment of the spread of infectious diseases. While Bluetooth-based contact tracing method using phones has become popular recently, these approaches suffer from the…

Networking and Internet Architecture · Computer Science 2021-09-16 Amee Trivedi , Camellia Zakaria , Rajesh Balan , Prashant Shenoy

Smartphone-based contact-tracing applications are at the epicenter of the global fight against the Covid-19 pandemic. While governments and healthcare agencies are eager to mandate the deployment of such applications en-masse, they face…

Cryptography and Security · Computer Science 2020-12-10 Jianwei Huang , Vinod Yegneswaran , Phillip Porras , Guofei Gu

Since the outbreak of the COVID-19 pandemic, worldwide research efforts have focused on using artificial intelligence (AI) technologies on various medical data of COVID-19-positive patients in order to identify or classify various aspects…

Medical Physics · Physics 2021-02-22 Dan Nguyen , Fernando Kay , Jun Tan , Yulong Yan , Yee Seng Ng , Puneeth Iyengar , Ron Peshock , Steve Jiang

We provide a rough sketch of a simple system design for exposure notification of COVID-19 infections based on copresence at cluster events -- locations and times where a threshold number of tested-positive (TP) individuals were present.…

Cryptography and Security · Computer Science 2022-01-04 Paul Syverson

During the coronavirus disease 2019 (COVID-19) pandemic, rapid and accurate triage of patients at the emergency department is critical to inform decision-making. We propose a data-driven approach for automatic prediction of deterioration…

Capturing the structure of a population and characterising contacts within the population are key to reliable projections of infectious disease. Two main elements of population structure -- contact heterogeneity and age -- have been…

Physics and Society · Physics 2025-03-17 Luke Murray Kearney , Emma L. Davis , Matt J. Keeling

Numerous COVID-19 clinical decision support systems have been developed. However many of these systems do not have the merit for validity due to methodological shortcomings including algorithmic bias. Methods Logistic regression models were…

Machine Learning · Computer Science 2021-11-02 Yifan Li , Garrett Yoon , Mustafa Nasir-Moin , David Rosenberg , Sean Neifert , Douglas Kondziolka , Eric Karl Oermann

The spread of pandemics such as COVID-19 is strongly linked to human activities. The objective of this paper is to specify and examine early indicators of disease spread risk in cities during the initial stages of outbreak based on patterns…

Physics and Society · Physics 2020-09-22 Xinyu Gao , Chao Fan , Yang Yang , Sanghyeon Lee , Qingchun Li , Mikel Maron , Ali Mostafavi

Knowledge about the daily number of new infections of Covid-19 is important because it is the basis for political decisions resulting in lockdowns and urgent health care measures. We use Germany as an example to illustrate shortcomings of…

Social and Information Networks · Computer Science 2020-04-09 Bernd Skiera , Lukas Jürgensmeier , Kevin Stowe , Iryna Gurevych

The novel coronavirus and its deadly outbreak have posed grand challenges to human society: as of March 26, 2020, there have been 85,377 confirmed cases and 1,293 reported deaths in the United States; and the World Health Organization (WHO)…

Social and Information Networks · Computer Science 2020-03-30 Yanfang Ye , Shifu Hou , Yujie Fan , Yiyue Qian , Yiming Zhang , Shiyu Sun , Qian Peng , Kenneth Laparo

We present CRISP (COVID-19 Risk Score Prediction), a probabilistic graphical model for COVID-19 infection spread through a population based on the SEIR model where we assume access to (1) mutual contacts between pairs of individuals across…

Social and Information Networks · Computer Science 2022-07-04 Ralf Herbrich , Rajeev Rastogi , Roland Vollgraf

Physical contact remains difficult to trace in large metropolitan networks, though it is a key vehicle for the transmission of contagious outbreaks. Co-presence encounters during daily transit use provide us with a city-scale time-resolved…

Physics and Society · Physics 2014-05-20 Lijun Sun , Kay W. Axhausen , Der-Horng Lee , Manuel Cebrian

In today's university environment, wireless connectivity is an essential resource for academic, administrative, and research activities. However, at the National University of the Altiplano of Puno (UNAP), the use of a QR code access system…

Cryptography and Security · Computer Science 2026-01-06 Adiv Brander Cari Quispe