This is a presentation of the analysis of 8 Facebook networks. The data of these networks was generated by NetVizz app in Facebook. The analysis was performed by Gephi. This project was done as the final project of "Advanced Statistical Mechanics 2" course with Dr. Farhad Shahbazi at Isfahan University of Technology - Spring 2014
2. • Gephi: is an interactive visualization and
exploration platform for all kinds of
networks and complex systems, dynamic
and hierarchical graphs.
Introduction
4. • Netvizz: is a tool that extracts data from
different sections of the Facebook platform
(personal profile, groups, pages) for
research purposes. File outputs can be
easily analyzed in standard software.
Introduction
6. • Density: Measures how close the network
is to complete. for complete graph
density=1.
• Average Clustering Coefficient: The
mean value of individual coefficients.
• Diameter: The longest graph distance
between any two nodes in the network.
• Betweenness Centrality: Measures how
often a node appears on shortest paths
between nodes in the network.
Definitions
7. Definitions
• Closeness Centrality: The average
distance from a given starting node to all
other nodes in the network.
• Eccentricity: The distance from a given
starting node to the farthest node from it
in the network.
• Clustering Coefficient: Indicates how
nodes are embedded in their
neighborhood. (“What is the probability
that two of my friends are also friends?”)
8. • Type: page like network
• Likes: 631,000
page like network: This module starts with a
selected page (the "seed") and retrieves all
the pages that page likes. It will continue
until the specified crawl depth is reached
(currently limited to 2). The output is a
network containing a (directed) network of
pages.
First Network: “ ”
20. • Type: like network
like network: This module creates a network
from your friends and their likes (both users
and liked objects are nodes). Only liked
pages are taken into account, not external
objects.
Second Network: “my facebook like network”
23. • Type: personal friend network
personal friend network: This module
creates a network with all the friendship
connections in your personal network
Third Network: “my facebook friends network”
26. • Type: group
• Members: 3597
Group network: This module creates a
network with all the friendship connections
in the group.
Forth Network: “IUT” group
30. • Type: group
• Members: 2813
Group network: This module creates a
network with all the friendship connections
in the group.
Fifth Network: “ ” group
34. • “Quantum Information and Quantum Computer
Scientists of the World Unite” group (1945
members): scale-free behaviour
• “Bill Gates” page (10,171,680 likes): scale-free
behaviour
• “I fucking love science” page (15,887,023
likes): scale-free behaviour
Other Network that I analyzed
35. References
• “Studying Facebook via data extraction: the Netvizz application”, B.
Rieder, Proceedings of the 5th Annual ACM Web Science Conference,
Pages 346-355, DOI: 10.1145/2464464.2464475
• Netvizz: https://apps.facebook.com/netvizz/
• “Gephi: an open source software for exploring and manipulating
networks”, M Bastian, S Heymann, M Jacomy - ICWSM, 2009.
• Gephi: https://gephi.org/