Social Network Analysis
(invited lecture for DS 2014)
Author: Anuška Ferligoj
Affiliation:Faculty of Social Sciences, University of Ljubljana,
Social network analysis has attracted considerable interest from
social and behavioral science community in recent decades. Much of
this interest can be attributed to the focus of social network
analysis on relationship among units, and on the patterns of these
relationships. Social network analysis is a rapidly expanding and
changing field with broad range of approaches, methods, models and
substantive applications. In the talk special attention will be given
- General introduction to social network analysis:
- What are social networks?
- Data collection issues.
- Basic network concepts: network representation; types of networks;
size and density.
- Walks and paths in networks: length and value of path; the shortest path,
k-neighbours; acyclic networks.
- Connectivity: weakly, strongly and bi-connected components; contraction;
- Overview of tasks and corresponding methods:
- Network/node properties: centrality (degree, closeness, betweenness); hubs and authorities.
- Cohesion: triads, cliques, cores, islands.
- Partitioning: blockmodeling (direct and indirect approaches; structural, regular equivalence; generalised blockmodeling); clustering and community detection.
- Statistical models.
- Software for social network analysis (UCINET, PAJEK, ...)
Anuška Ferligoj is a Slovenian mathematician, whose work in
network analysis research is internationally recognized. Her interests
include multivariate analysis (constrained and multicriteria
clustering), social networks (measurement quality and blockmodeling),
and survey methodology (reliability and validity of measurement). She
is a fellow of the European Academy of Sociology. She is a professor
of Multivariate statistical methods at the University of Ljubljana and
head of the graduate program on Statistics at the University of
Ljubljana. She is also editor of the journal Advances in Methodology
and Statistics (Metodoloski zvezki) since 2004 and is a member of the
editorial boards of the Journal of Mathematical Sociology, Journal of
Classification, Social Networks, Statistic in Transition, Methodology,
Structure and Dynamics: eJournal of Anthropology and Related
Sciences. She was a Fulbright scholar in 1990 and visiting professor
at the University of Pittsburgh. She was awarded the title of
Ambassador of Science of the Republic of Slovenia in 1997.