Attributed Network Embedding Model for Exposing COVID-19 Spread Trajectory Archetypes

Abstract

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, it is essential to explore latent heterogeneous features in cities and communities that distinguish their specific pandemic spread trajectories. To this end, this study creates a network embedding model capturing cross-county visitation networks, as well as heterogeneous features related to population activities, human mobility, socio-demographic features, disease attribute, and social interaction to uncover clusters of counties in the United States based on their pandemic spread transmission trajectories. We collected and computed location intelligence features from 2,787 counties from March 3 to June 29, 2020 (initial wave). Second, we constructed a human visitation network, which incorporated county features as node attributes, and visits between counties as network edges. Our attributed network embeddings approach integrates both typological characteristics of the cross-county visitation network, as well as heterogeneous features. We conducted clustering analysis on the attributed network embeddings to reveal four archetypes of spread risk trajectories corresponding to four clusters of counties. Subsequently, we identified four features—population density, GDP, minority status, and POI visits—as important features underlying the distinctive transmission risk patterns among the archetypes. The attributed network embedding approach and the findings identify and explain the non-homogenous pandemic risk trajectories across counties for predictive pandemic monitoring. The study also contributes to data-driven and deep learning-based approaches for pandemic analytics to complement the standard epidemiological models for policy analysis in pandemics.

Towards Improved XAI-Based Epidemiological Research into the Next Potential Pandemic

“…Beside the previously mentioned methods, knowledge graph embedding techniques to encode the entities and relations in a knowledge graph as dense and low-dimensional vector representations are utilized in the literature of SARS-CoV-2 [62,63]. In addition, functional data analysis following the principle of "breaking up the whole into pieces" of big data analysis to transfer discrete and high-frequency sequences of data to continuous smooth functions, treating the whole functions as a single entity with an internal unified structure, is used in the literature [64].…”

Emergence of Urban Heat Traps from the Intersection of Human Mobility and Heat Hazard Exposure in Cities

“…Human mobility datasets have been widely used in multiple hazards, including hurricane [32][33][34][35] , ooding [36][37][38][39][40][41] , and infectious diseases [42][43][44][45] . These studies have found human mobility data was useful to understand people's reaction to hazards 46,47 .…”