Dataset Open Access

The Collaborative Organization of Knowledge: Data Set

Spinellis, Diomidis; Louridas, Panos


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        <foaf:name>Louridas, Panos</foaf:name>
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    <dcat:keyword>Replication package</dcat:keyword>
    <dcat:keyword>Wikipedia</dcat:keyword>
    <dcat:keyword>Evolution</dcat:keyword>
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    <dct:description>&lt;p&gt;Wikipedia is an ongoing endeavor to create a free encyclopedia through an open computer-mediated collaborative effort. How does Wikipedia grow and maintain its coverage? This page contains supporing material relevant to a publication that examines this question.&lt;/p&gt; &lt;ul&gt; &lt;li&gt;Diomidis Spinellis and Panagiotis Louridas. The collaborative organization of knowledge. Communications of the ACM, 51(8):68&amp;ndash;73, August 2008. (&lt;a href="http://dx.doi.org/10.1145/1378704.1378720"&gt;doi:10.1145/1378704.1378720&lt;/a&gt;)&lt;/li&gt; &lt;/ul&gt; &lt;p&gt;In the above paper, a longitudinal study of Wikipedia&amp;#39;s evolution shows that although Wikipedia&amp;#39;s scope is increasing, its coverage is not deteriorating. This can be explained by the fact that referring to an non-existing entry typically leads to the establishment of an article for it. Wikipedia&amp;#39;s evolution also demonstrates the creation of a large real world scale-free graph through a combination of incremental growth and preferential attachment.&lt;/p&gt; &lt;p&gt;Though this data set you can download the processed results. The file starts with a header giving various attributes of the processed data set.&lt;/p&gt; &lt;pre&gt;% Number of bins: 72 % Total revisions: 28247658 % Maximum revisions: 28273 (George W. Bush) % Maximum reverts: 9218 (George W. Bush) % Number of moves: 81380 % Total pages: 1898139 % Revisions from IP addresses: 8518913 % Total contributors: 230130 % Maximum different contributors: 2539 (George W. Bush) % Redirected pages: 631567 % Restricted pages: 2441 % Maximum number of contained references: 17577 (List of all three letter acrony ms) % Pages with at least one revert: 211704 % Total number of reverts across all pages: 1147151 % Total time between reverts: 54524346346 % Moved pages: 80332 &lt;/pre&gt; &lt;p&gt;Next comes one line of data for each one of Wikipedia&amp;#39;s entries. Here is an example.&lt;/p&gt; &lt;pre&gt;A (musical note):1128386876:Mailer diablo:1130566991:MrD9:10:7:18:0:0:0:0:0:0:0: 0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0: 0:0:0:0:0:0:0:0:0:0:0:1:1:1:2:2:2:2:2:2:2:2:2:2:2:2:E &lt;/pre&gt; &lt;p&gt;Each line contains the following fields.&lt;/p&gt; &lt;ul&gt; &lt;li&gt;Entry name&lt;/li&gt; &lt;li&gt;Time of first definition (in seconds since Unix epoch)&lt;/li&gt; &lt;li&gt;Name of the contributor who first defined the entry&lt;/li&gt; &lt;li&gt;Time of first reference (in seconds since Unix epoch)&lt;/li&gt; &lt;li&gt;Name of the contributor who first referenced the entry&lt;/li&gt; &lt;li&gt;Number of references&lt;/li&gt; &lt;li&gt;Number of contributors&lt;/li&gt; &lt;li&gt;Number of revisions&lt;/li&gt; &lt;li&gt;Number of reverts&lt;/li&gt; &lt;li&gt;For each one of the time period bins (72 in this file) the number of references to the entry&lt;/li&gt; &lt;li&gt;The letter &amp;quot;E&amp;quot;&lt;/li&gt; &lt;/ul&gt; &lt;p&gt;The fields are colon-separated. Colons in the input data are converted to an underscore.&lt;/p&gt; &lt;p&gt;Finally, come lines summarizing the data set&amp;#39;s characteristics for each time period. Here is an example.&lt;/p&gt; &lt;pre&gt;2001-07-01 4851 0 27106 15129 13458 531 &lt;/pre&gt; &lt;p&gt;Each line contains the following fields.&lt;/p&gt; &lt;ul&gt; &lt;li&gt;Start date of this period&lt;/li&gt; &lt;li&gt;Number of entries&lt;/li&gt; &lt;li&gt;Number of entries that are stubs&lt;/li&gt; &lt;li&gt;Number of references&lt;/li&gt; &lt;li&gt;Number of referenced articles&lt;/li&gt; &lt;li&gt;Number of undefined entries&lt;/li&gt; &lt;li&gt;Number of active contributors in this period&lt;/li&gt; &lt;/ul&gt;</dct:description>
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