Homophily and nationality assortativity among the most cited researchers' social network

Michal Vaanunu, Chen Avin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

It is well known that individuals in social networks tend to exhibit homophily, the preference of people to associate with others from the same social group or type. Graph assortativity or Modularity is the most accepted measure for the homophily level of the whole network. It is well defined for simple networks where each node has a single type, and edges are unweighted. In this work, we extend modularity and assortativity in several ways. First, we define type assortativity which measures the homophily level of each type and enable the comparison between types of different size within the network. Second, we extend the measures to the case of nodes with multiple types and weighted edges. We evaluate our definitions on a weighted, research collaboration, social network between the most cited authors in the ACM digital library. We use nationality-based multiple types where a author can belong to multiple nationalities. While nationality-based homophily is trivial when the network is large (based on local research at universities) our empirical results show that even for the top 1000 authors a high level of nationality-based homophily exists, and different nationalities exhibit a different level of homophily.

Original languageEnglish
Title of host publicationProceedings of the 2018 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining, ASONAM 2018
EditorsAndrea Tagarelli, Chandan Reddy, Ulrik Brandes
PublisherInstitute of Electrical and Electronics Engineers
Pages584-586
Number of pages3
ISBN (Electronic)9781538660515
DOIs
StatePublished - 24 Oct 2018
Event10th IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining, ASONAM 2018 - Barcelona, Spain
Duration: 28 Aug 201831 Aug 2018

Publication series

NameProceedings of the 2018 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining, ASONAM 2018

Conference

Conference10th IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining, ASONAM 2018
Country/TerritorySpain
CityBarcelona
Period28/08/1831/08/18

Keywords

  • ACM DL
  • assortativity
  • co-authorship network
  • homophily
  • modularity
  • social networks

ASJC Scopus subject areas

  • Sociology and Political Science
  • Communication
  • Computer Networks and Communications
  • Information Systems and Management

Fingerprint

Dive into the research topics of 'Homophily and nationality assortativity among the most cited researchers' social network'. Together they form a unique fingerprint.

Cite this