In
my previous blog I blogged about Gephi, how simple and useful it is in
analyzing social networks. You just need to import your social network data
into Gephi. Here I would like to introduce Netvizz through which you can easily
download your Facebook networks as a gdf file which you can then analyze in Gephi.
Netvizz
Facebook application provides a tool that allows an easy way to export your
personal Facebook data in a gdf format. Twitter doesn’t have an application
like Netvizz and it is very difficult to extract twitter data in order to
analyze it. Therefore Netvizz is an advantage of Facebook over twitter in
providing easy access to their personal data in the form of gdf file which can
be analyzed in order to find out some important implication.
DATA ACCESS via
NETVIZZ
It
is very simple to use Netvizz. It is a part of Facebook directory and can be
easily found out by typing Netvizz in Facebook search box. Netvizz requires
user to log in with their Facebook account in order to use it.
 |
| Netvizz App Permission Request Page |
First
Netvizz will ask you to have an access to your Facebook friends’ connections.
You have to grant this permission otherwise Netvizz will not work; users’
privacy settings are indeed relevant for interpreting the retrieved data.
Remember Netvizz application doesn’t store any of the extracted data in a
database and generated files are deleted in regular intervals. So it is safe to
grant the permission to Netvizz.
 |
| Netvizz App Page |
Next
step is to open the application page and choose the network which you want to
analyze in Gephi. If you have a very large number of friends it will take some
time and at the end it will give you the option to download the gdf file of
your Facebook data. This file then you can open in Gephi and analyze for
important implication.
Students
who want to use Gephi in order to analyze their social network data and find
out some implication will definitely like the Netvizz and its simple use in
extracting the data from Facebook whereas they will find it very difficult to
extract data from their twitter account because of absence of a simple to use app like Netvizz in Twitter. Netvizz is definitely a Facebook’s’
advantage over Twitter for data analyzers.
Refrences:
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