SOS-Evol 2012
10
Geographical Movement of Mailing List Participants Bogdan Vasilescu Alexander Serebrenik Erik Kouters
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I used these slides for the Seminar on Open Source Evolution in Brussels, Belgium.SOS Evol 2012 is an informal international meeting gathering researchers interested in studying the evolution of libre and open source software.
Transcript of SOS-Evol 2012
Geographical Movement of Mailing List Participants
Bogdan Vasilescu
Alexander Serebrenik
Erik Kouters
Motivation and RQs
• Motivation• Emigration might affect applicability of IP/copyright
laws• Are SW developers migration patterns different from
generic migration patterns?• Time = money convention participation = dedication
• RQs• Have GNOME mailing list participants moved to
different countries/cities?
/ Software Engineering & Technology PAGE 212-04-2023
Approach
/ Software Engineering & Technology PAGE 312-04-2023
Parse email headers
/ name of department PAGE 412-04-2023
From [email protected] Sat Jun 25 15:02:59 2011Return-Path: [email protected]
Received: from localhost (localhost.localdomain [127.0.0.1]) by menubar.gnome.org (Postfix) with ESMTP id
Received: from menubar.gnome.org ([127.0.0.1]) by localhost (menubar.gnome.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2z63vmPgKcL1 for <[email protected]>; Sat, 25 Jun 2011 15:02:57 +0000 (UTC)
Received: from s2.weballdesign.gr (ipa167.208.tellas.gr [62.169.208.167]) by menubar.gnome.org (Postfix) with ESMTP id B7E42750006 for <[email protected]>; Sat, 25 Jun 2011 15:02:48 +0000 (UTC)
Received: from athlon.wad.local (ipa167.208.tellas.gr [62.169.208.167]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested)
(Authenticated sender: linuxfanclub) by s2.weballdesign.gr (Postfix) with ESMTPSA id C479737488 for <[email protected]>; Sat, 25 Jun 2011 17:55:50 +0300 (EEST)
From: Vagelis Koutsomitros [email protected]: [email protected]: Sat, 25 Jun 2011 17:55:49 +0300Subject: …
Resolve IPs
• Analyze all the emails sent by the same person• Extract IPs• Resolve IPs to locations
• Countries: Majority
• Cities: Majority, Distance
/ name of department PAGE 512-04-2023
IP IPINFODB GEOIP GEOIPS HOSTIP IP2LOCATION ARBITER CONFIDENCE193.6.34.4 hungary hungary hungary romania hungary 0.75
IP IPINFODB GEOIP GEOIPS HOSTIP IP2LOCATION ARBITER129.187.98.168 wolnzach germering garching muenchen muenchen
Resolve IPs
/ name of department PAGE 612-04-2023
Results
/ Software Engineering & Technology PAGE 712-04-2023
Source: http://mkp.net/personal.html
Results
• [email protected]• ('beaufort', 'unitedstates') 2005-02-01 07:40:56-08:00• ('eugeneor', 'unitedstates') 2006-11-19 08:02:32-08:00
/ name of department PAGE 812-04-2023
May 2, 2009:
“Seiner said he and his wife pulled up stakes in South Carolina four years ago and moved to Eugene solely because of its schools, attracted by the variety and academic reputation.”
Future work
/ Software Engineering & Technology PAGE 1012-04-2023
• Flow map: whisky exports from Scotland [Speckmann et al., 2011]
Future work: Convention participation = dedication
/ name of department PAGE 1112-04-2023
