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@@ -6,6 +6,72 @@
                 <link>http://people.skolelinux.org/pere/blog/</link>
                 <atom:link href="http://people.skolelinux.org/pere/blog/index.rss" rel="self" type="application/rss+xml" />
        
                 <link>http://people.skolelinux.org/pere/blog/</link>
                 <atom:link href="http://people.skolelinux.org/pere/blog/index.rss" rel="self" type="application/rss+xml" />
        

+       <item>
+               <title>Graphing the Norwegian company ownership structure</title>
+               <link>http://people.skolelinux.org/pere/blog/Graphing_the_Norwegian_company_ownership_structure.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Graphing_the_Norwegian_company_ownership_structure.html</guid>
+                <pubDate>Mon, 15 Jun 2015 14:00:00 +0200</pubDate>
+               <description>&lt;p&gt;It is a bit work to figure out the ownership structure of companies
+in Norway.  The information is publicly available, but one need to
+recursively look up ownership in all owners to figure out the complete
+ownership graph of a given set of companies.  To save me the work in
+the future, I wrote a script to do this automatically, outputting the
+ownership structure using the Graphviz/dotty format.  The data source
+is web scraping from &lt;a href=&quot;http://www.proff.no/&quot;&gt;Proff&lt;/a&gt;, because
+I failed to find a useful source directly from the official keepers of
+the ownership data, &lt;a href=&quot;http://www.brreg.no/&quot;&gt;Brønnøysundsregistrene&lt;/a&gt;.&lt;/p&gt;
+
+&lt;p&gt;To get a owner ship graph, fetch
+&lt;a href=&quot;https://github.com/petterreinholdtsen/brreg-norway-ownership-graph&quot;&gt;the code from git&lt;/a&gt; and run it using the organisation number.  I&#39;m
+using the Norwegian newspaper Dagbladet as an example here, as its
+ownership structure is very simple:&lt;/p&gt;
+
+&lt;pre&gt;
+% time ./bin/eierskap-dotty 958033540 &gt; dagbladet.dot
+
+real    0m2.841s
+user    0m0.184s
+sys     0m0.036s
+%
+&lt;/pre&gt;
+
+&lt;p&gt;The script accept several organisation numbers on the command line,
+allowing a cluster of companies to be graphed in the same image.  The
+resulting dot file for the example above look like this.  The edges
+are labeled with the ownership percentage, and the nodes uses the
+organisation number as their name and the name as the label:&lt;/p&gt;
+
+&lt;pre&gt;
+digraph ownership {
+rankdir = LR;
+&quot;Aller Holding A/s&quot; -&gt; &quot;910119877&quot; [label=&quot;100%&quot;]
+&quot;910119877&quot; -&gt; &quot;998689015&quot; [label=&quot;100%&quot;]
+&quot;998689015&quot; -&gt; &quot;958033540&quot; [label=&quot;99%&quot;]
+&quot;974530600&quot; -&gt; &quot;958033540&quot; [label=&quot;1%&quot;]
+&quot;958033540&quot; [label=&quot;AS DAGBLADET&quot;]
+&quot;998689015&quot; [label=&quot;Berner Media Holding AS&quot;]
+&quot;974530600&quot; [label=&quot;Dagbladets Stiftelse&quot;]
+&quot;910119877&quot; [label=&quot;Aller Media AS&quot;]
+}
+&lt;/pre&gt;
+
+&lt;p&gt;To view the ownership graph, run &quot;&lt;tt&gt;dotty dagbladet.dot&lt;/tt&gt;&quot; or
+convert it to a PNG using &quot;&lt;tt&gt;dot -T png dagbladet.dot &gt;
+dagbladet.png&lt;/tt&gt;&quot;.  This is the result can be seen below:&lt;/p&gt;
+
+&lt;img src=&quot;http://people.skolelinux.org/pere/blog/images/2015-06-15-ownership-graphs-norway-dagbladet.png&quot; width=&quot;80%&quot;&gt;
+
+&lt;p&gt;Note that I suspect the &quot;Aller Holding A/S&quot; entry to be incorrect
+data in the official ownership register, as that name is not
+registered in the official company register for Norway.  The ownership
+register is sensitive to typos and there seem to be no strict checking
+of the ownership information.&lt;/p&gt;
+
+&lt;p&gt;Let me know if you improve the script or find better data sources.
+The code is licensed according to GPL 2 or newer.&lt;/p&gt;
+</description>
+       </item>
+       

        <item>
                <title>Measuring and adjusting the loudness of a TV channel using bs1770gain</title>
                <link>http://people.skolelinux.org/pere/blog/Measuring_and_adjusting_the_loudness_of_a_TV_channel_using_bs1770gain.html</link>
        <item>
                <title>Measuring and adjusting the loudness of a TV channel using bs1770gain</title>
                <link>http://people.skolelinux.org/pere/blog/Measuring_and_adjusting_the_loudness_of_a_TV_channel_using_bs1770gain.html</link>


@@ -1023,61 +1089,5 @@ you find any.&lt;/p&gt;
 </description>
        </item>
        
 </description>
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-       <item>
-               <title>Frikanalen, Norwegian TV channel for technical topics</title>
-               <link>http://people.skolelinux.org/pere/blog/Frikanalen__Norwegian_TV_channel_for_technical_topics.html</link>
-               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Frikanalen__Norwegian_TV_channel_for_technical_topics.html</guid>
-                <pubDate>Mon, 9 Mar 2015 11:10:00 +0100</pubDate>
-               <description>&lt;p&gt;The &lt;a href=&quot;http://www.nuug.no/&quot;&gt;Norwegian Unix User Group&lt;/a&gt;,
-where I am a member, and where people interested in free software,
-open standards and UNIX like operating systems like Linux and the BSDs
-come together, record our monthly technical presentations on video.
-The purpose is to document the talks and spread them to a wider
-audience.  For this, the the Norwegian nationwide open channel
-&lt;a href=&quot;http://www.frikanalen.no/&quot;&gt;Frikanalen&lt;/a&gt; is a useful venue.
-Since a few days ago, when I figured out the
-&lt;a href=&quot;http://beta.frikanalen.no/api/&quot;&gt;REST API&lt;/a&gt; to program the
-&lt;a href=&quot;http://beta.frikanalen.tv/guide/&quot;&gt;channel time schedule&lt;/a&gt;,
-the channel has been filled with NUUG talks, related recordings and
-some Creative Commons licensed TED talks (from archive.org).  I fill
-all &quot;leftover bits&quot; on the channel with content from NUUG, which at
-the moment is almost 17 of 24 hours every day.&lt;/p&gt;
-
-&lt;p&gt;The list of NUUG videos
-&lt;a href=&quot;http://beta.frikanalen.tv/organization/82&quot;&gt;uploaded so far&lt;/a&gt;
-include things like a
-&lt;a href=&quot;http://beta.frikanalen.tv/video/625090&quot;&gt;one hour talk by John
-Perry Barlow when he visited Oslo&lt;/a&gt;, a presentation of
-&lt;a href=&quot;http://beta.frikanalen.tv/video/624275&quot;&gt;Haiku, the BeOS
-re-implementation&lt;/a&gt;, the
-&lt;a href=&quot;http://beta.frikanalen.tv/video/624493&quot;&gt;history of FiksGataMi,
-the Norwegian version of FixMyStreet&lt;/a&gt;, the good old
-&lt;a href=&quot;http://beta.frikanalen.tv/video/623566&quot;&gt;Warriors of the net
-video&lt;/A&gt; and many others.&lt;/p&gt;
-
-&lt;p&gt;We have a large backlog of NUUG talks not yet uploaded to
-Frikanalen, and plan to upload every useful bit to the channel to
-spread the word there.  I also hope to find useful recordings from the
-Chaos Computer Club and Debian conferences and spread them on the
-channel as well.  But this require locating the videos and their meta
-information (title, description, license, etc), and preparing the
-recordings for broadcast, and I have not yet had the spare time to
-focus on this.  Perhaps you want to help.  Please join us on IRC,
-&lt;a href=&quot;irc://irc.freenode.net/%23nuug&quot;&gt;#nuug on irc.freenode.net&lt;/a&gt;
-if you want to help make this happen.&lt;/p&gt;
-
-&lt;p&gt;But as I said, already the channel is already almost exclusively
-filled with technical topics, and if you want to learn something new
-today, check out the &lt;a href=&quot;http://www.frikanalen.tv/se&quot;&gt;Ogg Theora
-web stream&lt;/a&gt; or use one of the other ways to get access to the
-channel.  Unfortunately the Ogg Theora recoding for distribution still
-do not properly sync the video and sound.  It is generated by recoding
-a internal MPEG transport stream with MPEG4 coded video (ie H.264) to
-Ogg Theora / Vorbis, and we have not been able to find a way that
-produces acceptable quality.  Help needed, please get in touch if you
-know how to fix it using free software.&lt;/p&gt;
-</description>
-       </item>
-       

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