Community structure and ethnic preferences in school friendship networks

M. C. González, H. J. Herrmann, J. Kertész, T. Vicsek

Research output: Contribution to journalArticle

70 Citations (Scopus)

Abstract

Recently developed concepts and techniques of analyzing complex systems provide new insight into the structure of social networks. Uncovering recurrent preferences and organizational principles in such networks is a key issue to characterize them. We investigate school friendship networks from the Add Health database. Applying threshold analysis, we find that the friendship networks do not form a single connected component through mutual strong nominations within a school, while under weaker conditions such interconnectedness is present. We extract the networks of overlapping communities at the schools (c-networks) and find that they are scale free and disassortative in contrast to the direct friendship networks, which have an exponential degree distribution and are assortative. Based on the network analysis we study the ethnic preferences in friendship selection. The clique percolation method we use reveals that when in minority, the students tend to build more densely interconnected groups of friends. We also find an asymmetry in the behavior of black minorities in a white majority as compared to that of white minorities in a black majority.

Original languageEnglish
Pages (from-to)307-316
Number of pages10
JournalPhysica A: Statistical Mechanics and its Applications
Volume379
Issue number1
DOIs
Publication statusPublished - Jun 1 2007

Fingerprint

Community Structure
minorities
network analysis
Network Analysis
Degree Distribution
Exponential distribution
Clique
Connected Components
Social Networks
Asymmetry
Overlapping
complex systems
Complex Systems
Health
students
health
Tend
asymmetry
thresholds

Keywords

  • Community structure
  • Complex networks
  • Social contacts
  • Social preferences

ASJC Scopus subject areas

  • Mathematical Physics
  • Statistical and Nonlinear Physics

Cite this

Community structure and ethnic preferences in school friendship networks. / González, M. C.; Herrmann, H. J.; Kertész, J.; Vicsek, T.

In: Physica A: Statistical Mechanics and its Applications, Vol. 379, No. 1, 01.06.2007, p. 307-316.

Research output: Contribution to journalArticle

González, M. C. ; Herrmann, H. J. ; Kertész, J. ; Vicsek, T. / Community structure and ethnic preferences in school friendship networks. In: Physica A: Statistical Mechanics and its Applications. 2007 ; Vol. 379, No. 1. pp. 307-316.
@article{aab36c074a454a37ba663b0ddddb04e9,
title = "Community structure and ethnic preferences in school friendship networks",
abstract = "Recently developed concepts and techniques of analyzing complex systems provide new insight into the structure of social networks. Uncovering recurrent preferences and organizational principles in such networks is a key issue to characterize them. We investigate school friendship networks from the Add Health database. Applying threshold analysis, we find that the friendship networks do not form a single connected component through mutual strong nominations within a school, while under weaker conditions such interconnectedness is present. We extract the networks of overlapping communities at the schools (c-networks) and find that they are scale free and disassortative in contrast to the direct friendship networks, which have an exponential degree distribution and are assortative. Based on the network analysis we study the ethnic preferences in friendship selection. The clique percolation method we use reveals that when in minority, the students tend to build more densely interconnected groups of friends. We also find an asymmetry in the behavior of black minorities in a white majority as compared to that of white minorities in a black majority.",
keywords = "Community structure, Complex networks, Social contacts, Social preferences",
author = "Gonz{\'a}lez, {M. C.} and Herrmann, {H. J.} and J. Kert{\'e}sz and T. Vicsek",
year = "2007",
month = "6",
day = "1",
doi = "10.1016/j.physa.2007.01.002",
language = "English",
volume = "379",
pages = "307--316",
journal = "Physica A: Statistical Mechanics and its Applications",
issn = "0378-4371",
publisher = "Elsevier",
number = "1",

}

TY - JOUR

T1 - Community structure and ethnic preferences in school friendship networks

AU - González, M. C.

AU - Herrmann, H. J.

AU - Kertész, J.

AU - Vicsek, T.

PY - 2007/6/1

Y1 - 2007/6/1

N2 - Recently developed concepts and techniques of analyzing complex systems provide new insight into the structure of social networks. Uncovering recurrent preferences and organizational principles in such networks is a key issue to characterize them. We investigate school friendship networks from the Add Health database. Applying threshold analysis, we find that the friendship networks do not form a single connected component through mutual strong nominations within a school, while under weaker conditions such interconnectedness is present. We extract the networks of overlapping communities at the schools (c-networks) and find that they are scale free and disassortative in contrast to the direct friendship networks, which have an exponential degree distribution and are assortative. Based on the network analysis we study the ethnic preferences in friendship selection. The clique percolation method we use reveals that when in minority, the students tend to build more densely interconnected groups of friends. We also find an asymmetry in the behavior of black minorities in a white majority as compared to that of white minorities in a black majority.

AB - Recently developed concepts and techniques of analyzing complex systems provide new insight into the structure of social networks. Uncovering recurrent preferences and organizational principles in such networks is a key issue to characterize them. We investigate school friendship networks from the Add Health database. Applying threshold analysis, we find that the friendship networks do not form a single connected component through mutual strong nominations within a school, while under weaker conditions such interconnectedness is present. We extract the networks of overlapping communities at the schools (c-networks) and find that they are scale free and disassortative in contrast to the direct friendship networks, which have an exponential degree distribution and are assortative. Based on the network analysis we study the ethnic preferences in friendship selection. The clique percolation method we use reveals that when in minority, the students tend to build more densely interconnected groups of friends. We also find an asymmetry in the behavior of black minorities in a white majority as compared to that of white minorities in a black majority.

KW - Community structure

KW - Complex networks

KW - Social contacts

KW - Social preferences

UR - http://www.scopus.com/inward/record.url?scp=33947539469&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33947539469&partnerID=8YFLogxK

U2 - 10.1016/j.physa.2007.01.002

DO - 10.1016/j.physa.2007.01.002

M3 - Article

VL - 379

SP - 307

EP - 316

JO - Physica A: Statistical Mechanics and its Applications

JF - Physica A: Statistical Mechanics and its Applications

SN - 0378-4371

IS - 1

ER -