Identifying the temporal dynamics of densification and sparsification in human contact networks

Abstract Temporal social networks of human interactions are preponderant in understanding the fundamental patterns of human behavior. In these networks, interactions occur locally between individuals (i.e., nodes) who connect with each other at different times, culminating into a complex system-wide...

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Main Authors: Shaunette T. Ferguson, Teruyoshi Kobayashi
Format: Article
Language:English
Published: SpringerOpen 2022-10-01
Series:EPJ Data Science
Subjects:
Online Access:https://doi.org/10.1140/epjds/s13688-022-00365-3
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author Shaunette T. Ferguson
Teruyoshi Kobayashi
author_facet Shaunette T. Ferguson
Teruyoshi Kobayashi
author_sort Shaunette T. Ferguson
collection DOAJ
description Abstract Temporal social networks of human interactions are preponderant in understanding the fundamental patterns of human behavior. In these networks, interactions occur locally between individuals (i.e., nodes) who connect with each other at different times, culminating into a complex system-wide web that has a dynamic composition. Dynamic behavior in networks occurs not only locally but also at the global level, as systems expand or shrink due either to: changes in the size of node population or variations in the chance of a connection between two nodes. Here, we propose a numerical maximum-likelihood method to estimate population size and the probability of two nodes connecting at any given point in time. An advantage of the method is that it relies only on aggregate quantities, which are easy to access and free from privacy issues. Our approach enables us to identify the simultaneous (rather than the asynchronous) contribution of each mechanism in the densification and sparsification of human contacts, providing a better understanding of how humans collectively construct and deconstruct social networks.
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spelling doaj.art-fb5f9d34fc2d4580b094ddb15a91db492022-12-22T03:38:24ZengSpringerOpenEPJ Data Science2193-11272022-10-0111111510.1140/epjds/s13688-022-00365-3Identifying the temporal dynamics of densification and sparsification in human contact networksShaunette T. Ferguson0Teruyoshi Kobayashi1Graduate School of Economics, Kobe UniversityDepartment of Economics, Center for Computational Social Science, Kobe UniversityAbstract Temporal social networks of human interactions are preponderant in understanding the fundamental patterns of human behavior. In these networks, interactions occur locally between individuals (i.e., nodes) who connect with each other at different times, culminating into a complex system-wide web that has a dynamic composition. Dynamic behavior in networks occurs not only locally but also at the global level, as systems expand or shrink due either to: changes in the size of node population or variations in the chance of a connection between two nodes. Here, we propose a numerical maximum-likelihood method to estimate population size and the probability of two nodes connecting at any given point in time. An advantage of the method is that it relies only on aggregate quantities, which are easy to access and free from privacy issues. Our approach enables us to identify the simultaneous (rather than the asynchronous) contribution of each mechanism in the densification and sparsification of human contacts, providing a better understanding of how humans collectively construct and deconstruct social networks.https://doi.org/10.1140/epjds/s13688-022-00365-3Temporal networksDensification scalingHuman contacts
spellingShingle Shaunette T. Ferguson
Teruyoshi Kobayashi
Identifying the temporal dynamics of densification and sparsification in human contact networks
EPJ Data Science
Temporal networks
Densification scaling
Human contacts
title Identifying the temporal dynamics of densification and sparsification in human contact networks
title_full Identifying the temporal dynamics of densification and sparsification in human contact networks
title_fullStr Identifying the temporal dynamics of densification and sparsification in human contact networks
title_full_unstemmed Identifying the temporal dynamics of densification and sparsification in human contact networks
title_short Identifying the temporal dynamics of densification and sparsification in human contact networks
title_sort identifying the temporal dynamics of densification and sparsification in human contact networks
topic Temporal networks
Densification scaling
Human contacts
url https://doi.org/10.1140/epjds/s13688-022-00365-3
work_keys_str_mv AT shaunettetferguson identifyingthetemporaldynamicsofdensificationandsparsificationinhumancontactnetworks
AT teruyoshikobayashi identifyingthetemporaldynamicsofdensificationandsparsificationinhumancontactnetworks