My talk at the [[http://conferences.mongueurs.net/fpw2009/][FPW]] this
year is about the shape of the Perl and CPAN community. This talk was
prepared by some [[http://labs.rtgi.eu/][$coworkers]] and me.
We generated two maps (authors and modules) using the CPANTS' data. For
the websites, we crawled a seed generated from the CPAN pages of the
previous authors.
Each of this graphs are generated using a
[[http://en.wikipedia.org/wiki/Force-based_algorithms][force base
algorithm]], with the help of [[http://gephi.org/][Gephi]].
All the map are available in PDF files, in creative common licence. The
slides are in french, but I will explain the three maps here.
- [[http://labs.rtgi.eu/fpw09/resources/slides/][slides (french)]]
- [[http://labs.rtgi.eu/fpw09/resources/pdf/cpan_authors_core_march2009.pdf][authors
map]]
- [[http://labs.rtgi.eu/fpw09/resources/pdf/cpan_packages_core_march2009.pdf][modules
map]]
- [[http://labs.rtgi.eu/fpw09/resources/pdf/cpan-web-may2009-poster.pdf][community
maps]]
- [[http://labs.rtgi.eu/fpw09/map/][community map (flash version)]]
- [[http://cpan-explorer.org/][cpan-explorer.org]]
*** CPAN's modules
The first map is about the modules available on the CPAN. We selected a
list of modules which are listed as dependancies by at least 10 others
modules, and the modules who used them. This graph is composed of 7193
nodes (or modules) and 17510 edges. Some clusters are interesting:
- LWP and URI are really the center of the CPAN
- a lot of web modules (XML::*, TemplateToolkit, HTML::Parser, ...)
- TK is isolated from the CPAN
- Moose, DBIx::Class and Catalyst are forming a group. This data are
from march, we will try to do a newer version of this map this
summer. This one will be really interesting as Catalyst have switched
to Moose
*** The CPAN's authors
This map is about the authors on the CPAN. There is about 700 authors
and their connections. Each time an author use a module of another
author, a link is created.
- Modern Perl, constitued by Moose, Catalyst, DBIx::Class. Important
authors are Steven, Sartak, perigin, jrockway, mstrout, nothingmuch,
marcus ramberg
- Slaven Rezi? and others TK developpers are on the border
*** Web map
We crawled the web using the seed generated using the CPAN's authors
pages.
- again, the "modern group", on the top of the map, with
Moose/Catalyst/DBIx::Class developpers
- some enterprises, like shadowcat and iinteractive in the middle of
the "modern Perl", Booking in the middle of the YAPC's websites (they
are a major sponsor of this events), 6apart, ...
- perl.org is the reference for the Perl community (the site is
oriented on their sides)
- cpan.org is the reference for the open source community
- github is in the center of the Perl community. It's widely adopted by
the Perl developpers. It offers all the "social media" features that
are missing on the CPAN
I hope you like this visualisations, have fun analyzing them :)
