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Servedio"/></rdf:_4><rdf:_5><swrc:Person swrc:name="Vittorio Loreto"/></rdf:_5><rdf:_6><swrc:Person swrc:name="Andreas Hotho"/></rdf:_6><rdf:_7><swrc:Person swrc:name="Miranda Grahl"/></rdf:_7><rdf:_8><swrc:Person swrc:name="Gerd Stumme"/></rdf:_8></rdf:Seq></swrc:author><swrc:editor><rdf:Seq><rdf:_1><swrc:Person swrc:name="Susanne Hoche"/></rdf:_1><rdf:_2><swrc:Person swrc:name="Andreas Nürnberger"/></rdf:_2><rdf:_3><swrc:Person swrc:name="Jürgen Flach"/></rdf:_3></rdf:Seq></swrc:editor></rdf:Description></burst:publication><description>See http://www.bibsonomy.org/bibtex/2e1a5234a896b1f422473b1fe5d91e26b/stumme for a shorter workshop version.</description></item><item rdf:about="http://www.bibsonomy.org/bibtex/21dfe8b2aa29adf4929cbb845950f78bc/dbenz"><title>Network properties of folksonomies</title><link>http://www.bibsonomy.org/bibtex/21dfe8b2aa29adf4929cbb845950f78bc/dbenz</link><dc:creator>dbenz</dc:creator><dc:date>2011-02-17T17:41:53+01:00</dc:date><dc:subject>background emergentsemantics_evidence folksonomy network ol_web2.0 property sna taggingsurvey </dc:subject><content:encoded>&lt;span class=&#034;authorEditorList&#034;&gt;&lt;a href=&#034;/author/Cattuto&#034;&gt;Ciro Cattuto&lt;/a&gt;, &lt;a href=&#034;/author/Schmitz&#034;&gt;Christoph Schmitz&lt;/a&gt;, &lt;a href=&#034;/author/Baldassarri&#034;&gt;Andrea Baldassarri&lt;/a&gt;, &lt;a href=&#034;/author/Servedio&#034;&gt;Vito D. P. Servedio&lt;/a&gt;, &lt;a href=&#034;/author/Loreto&#034;&gt;Vittorio Loreto&lt;/a&gt;, &lt;a href=&#034;/author/Hotho&#034;&gt;Andreas Hotho&lt;/a&gt;, &lt;a href=&#034;/author/Grahl&#034;&gt;Miranda Grahl&lt;/a&gt;,  and &lt;a href=&#034;/author/Stumme&#034;&gt;Gerd Stumme&lt;/a&gt; &lt;/span&gt;&lt;em&gt;AI Communications&lt;/em&gt; &lt;em&gt;20(4):245--262&lt;/em&gt; (&lt;em&gt;December 2007&lt;/em&gt;)</content:encoded><taxo:topics><rdf:Bag><rdf:li rdf:resource="http://www.bibsonomy.org/tag/background"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/emergentsemantics_evidence"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/folksonomy"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/network"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/ol_web2.0"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/property"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/sna"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/taggingsurvey"/></rdf:Bag></taxo:topics><burst:publication><rdf:Description rdf:about="http://www.bibsonomy.org/bibtex/21dfe8b2aa29adf4929cbb845950f78bc/dbenz"><owl:sameAs rdf:resource="http://www.bibsonomy.org/uri/bibtex/21dfe8b2aa29adf4929cbb845950f78bc/dbenz"/><rdf:type rdf:resource="http://swrc.ontoware.org/ontology#Article"/><owl:sameAs rdf:resource="http://portal.acm.org/citation.cfm?id=1365538"/><swrc:date>Thu Feb 17 17:41:53 CET 2011</swrc:date><swrc:address>Amsterdam, The Netherlands</swrc:address><swrc:journal>AI Communications</swrc:journal><swrc:month>dec</swrc:month><swrc:number>4</swrc:number><swrc:pages>245--262</swrc:pages><swrc:publisher><swrc:Organization swrc:name="IOS Press"/></swrc:publisher><swrc:title>Network properties of folksonomies</swrc:title><swrc:volume>20</swrc:volume><swrc:year>2007</swrc:year><swrc:keywords>background emergentsemantics_evidence folksonomy network ol_web2.0 property sna taggingsurvey </swrc:keywords><swrc:abstract>Social resource sharing systems like YouTube and del.icio.us have acquired a large number of users within the last few years. They provide rich resources for data analysis, information retrieval, and knowledge discovery applications. A first step towards this end is to gain better insights into content and structure of these systems. In this paper, we will analyse the main network characteristics of two of these systems. We consider their underlying data structures - so-called folksonomies - as tri-partite hypergraphs, and adapt classical network measures like characteristic path length and clustering coefficient to them.Subsequently, we introduce a network of tag co-occurrence and investigate some of its statistical properties, focusing on correlations in node connectivity and pointing out features that reflect emergent semantics within the folksonomy. We show that simple statistical indicators unambiguously spot non-social behavior such as spam.</swrc:abstract><swrc:hasExtraField><swrc:Field swrc:value="2010-11-10 15:35:25" swrc:key="timestamp"/></swrc:hasExtraField><swrc:hasExtraField><swrc:Field swrc:value="dbenz" swrc:key="username"/></swrc:hasExtraField><swrc:hasExtraField><swrc:Field swrc:value="1dfe8b2aa29adf4929cbb845950f78bc" swrc:key="intrahash"/></swrc:hasExtraField><swrc:hasExtraField><swrc:Field swrc:value="0921-7126" swrc:key="issn"/></swrc:hasExtraField><swrc:hasExtraField><swrc:Field swrc:value="cattuto2007network.pdf:cattuto2007network.pdf:PDF" swrc:key="file"/></swrc:hasExtraField><swrc:hasExtraField><swrc:Field swrc:value="fc5f2df61d28bc99b7e15029da125588" swrc:key="interhash"/></swrc:hasExtraField><swrc:hasExtraField><swrc:Field swrc:value="1" swrc:key="journalpub"/></swrc:hasExtraField><swrc:hasExtraField><swrc:Field swrc:value="public" swrc:key="groups"/></swrc:hasExtraField><swrc:author><rdf:Seq><rdf:_1><swrc:Person swrc:name="Ciro Cattuto"/></rdf:_1><rdf:_2><swrc:Person swrc:name="Christoph Schmitz"/></rdf:_2><rdf:_3><swrc:Person swrc:name="Andrea Baldassarri"/></rdf:_3><rdf:_4><swrc:Person swrc:name="Vito D. 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Servedio&lt;/a&gt;, &lt;a href=&#034;/author/Loreto&#034;&gt;Vittorio Loreto&lt;/a&gt;, &lt;a href=&#034;/author/Hotho&#034;&gt;Andreas Hotho&lt;/a&gt;, &lt;a href=&#034;/author/Grahl&#034;&gt;Miranda Grahl&lt;/a&gt;,  and &lt;a href=&#034;/author/Stumme&#034;&gt;Gerd Stumme&lt;/a&gt; &lt;/span&gt;&lt;em&gt;AI Communications Journal, Special Issue on ``Network Analysis in Natural Sciences and Engineering&amp;#039;&amp;#039;&lt;/em&gt; &lt;em&gt;20(4):245-262&lt;/em&gt; (&lt;em&gt;2007&lt;/em&gt;)</content:encoded><taxo:topics><rdf:Bag><rdf:li rdf:resource="http://www.bibsonomy.org/tag/2007"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/semantics"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/emergent"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/folksonomy"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/tagorapub"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/folksonomies"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/l3s"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/network"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/itegpub"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/fca"/></rdf:Bag></taxo:topics><burst:publication><rdf:Description rdf:about="http://www.bibsonomy.org/bibtex/2da6c676c5664017247c7564fc247b190/dbenz"><owl:sameAs rdf:resource="http://www.bibsonomy.org/uri/bibtex/2da6c676c5664017247c7564fc247b190/dbenz"/><rdf:type rdf:resource="http://swrc.ontoware.org/ontology#Article"/><owl:sameAs rdf:resource="http://www.kde.cs.uni-kassel.de/stumme/papers/2007/cattuto2007network.pdf"/><swrc:date>Fri Jan 28 11:33:26 CET 2011</swrc:date><swrc:journal>AI Communications Journal, Special Issue on ``Network Analysis in Natural Sciences and Engineering&#039;&#039;</swrc:journal><swrc:number>4</swrc:number><swrc:pages>245-262</swrc:pages><swrc:publisher><swrc:Organization swrc:name="IOS Press"/></swrc:publisher><swrc:title>Network Properties of Folksonomies</swrc:title><swrc:volume>20</swrc:volume><swrc:year>2007</swrc:year><swrc:keywords>2007 semantics emergent folksonomy tagorapub folksonomies l3s network itegpub fca </swrc:keywords><swrc:hasExtraField><swrc:Field swrc:value="0921-7126" swrc:key="issn"/></swrc:hasExtraField><swrc:hasExtraField><swrc:Field swrc:value="67" swrc:key="vgwort"/></swrc:hasExtraField><swrc:author><rdf:Seq><rdf:_1><swrc:Person swrc:name="Ciro Cattuto"/></rdf:_1><rdf:_2><swrc:Person swrc:name="Christoph Schmitz"/></rdf:_2><rdf:_3><swrc:Person swrc:name="Andrea Baldassarri"/></rdf:_3><rdf:_4><swrc:Person swrc:name="Vito D. 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Servedio&lt;/a&gt;, &lt;a href=&#034;/author/Loreto&#034;&gt;Vittorio Loreto&lt;/a&gt;, &lt;a href=&#034;/author/Hotho&#034;&gt;Andreas Hotho&lt;/a&gt;, &lt;a href=&#034;/author/Grahl&#034;&gt;Miranda Grahl&lt;/a&gt;,  and &lt;a href=&#034;/author/Stumme&#034;&gt;Gerd Stumme&lt;/a&gt; &lt;/span&gt;&lt;em&gt;AI Communications&lt;/em&gt; &lt;em&gt;20(4):245--262&lt;/em&gt; (&lt;em&gt;December 2007&lt;/em&gt;)</content:encoded><taxo:topics><rdf:Bag><rdf:li rdf:resource="http://www.bibsonomy.org/tag/folksonomy"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/ol_tut2010"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/property"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/sna"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/analysis"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/network"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/social"/></rdf:Bag></taxo:topics><burst:publication><rdf:Description rdf:about="http://www.bibsonomy.org/bibtex/2f15cc7613101babb2c3ed1927e35213a/jaeschke"><owl:sameAs rdf:resource="http://www.bibsonomy.org/uri/bibtex/2f15cc7613101babb2c3ed1927e35213a/jaeschke"/><rdf:type rdf:resource="http://swrc.ontoware.org/ontology#Article"/><owl:sameAs rdf:resource="http://www.kde.cs.uni-kassel.de/pub/pdf/cattuto2007network.pdf"/><swrc:date>Thu Jan 27 13:37:04 CET 2011</swrc:date><swrc:address>Amsterdam, The Netherlands</swrc:address><swrc:journal>AI Communications</swrc:journal><swrc:month>dec</swrc:month><swrc:number>4</swrc:number><swrc:pages>245--262</swrc:pages><swrc:publisher><swrc:Organization swrc:name="IOS Press"/></swrc:publisher><swrc:title>Network Properties of Folksonomies</swrc:title><swrc:volume>20</swrc:volume><swrc:year>2007</swrc:year><swrc:keywords>folksonomy ol_tut2010 property sna analysis network social </swrc:keywords><swrc:abstract>Social resource sharing systems like YouTube and del.icio.us have acquired a large number of users within the last few years. 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Subsequently, we introduce a network of tag co-occurrence and investigate some of its statistical properties, focusing on correlations in node connectivity and pointing out features that reflect emergent semantics within the folksonomy. We show that simple statistical indicators unambiguously spot non-social behavior such as spam.
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Subsequently, we introduce a network of tag co-occurrence and investigate some of its statistical properties, focusing on correlations in node connectivity and pointing out features that reflect emergent semantics within the folksonomy. We show that simple statistical indicators unambiguously spot non-social behavior such as spam.
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Subsequently, we introduce a network of tag co-occurrence and investigate some of its statistical properties, focusing on correlations in node connectivity and pointing out features that reflect emergent semantics within the folksonomy. We show that simple statistical indicators unambiguously spot non-social behavior such as spam.
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Servedio"/></rdf:_4><rdf:_5><swrc:Person swrc:name="Vittorio Loreto"/></rdf:_5><rdf:_6><swrc:Person swrc:name="Andreas Hotho"/></rdf:_6><rdf:_7><swrc:Person swrc:name="Miranda Grahl"/></rdf:_7><rdf:_8><swrc:Person swrc:name="Gerd Stumme"/></rdf:_8></rdf:Seq></swrc:author></rdf:Description></burst:publication></item><item rdf:about="http://www.bibsonomy.org/bibtex/2da6c676c5664017247c7564fc247b190/sdo"><title>Network Properties of Folksonomies</title><link>http://www.bibsonomy.org/bibtex/2da6c676c5664017247c7564fc247b190/sdo</link><dc:creator>sdo</dc:creator><dc:date>2010-01-29T16:45:14+01:00</dc:date><dc:subject>BibSonomy BibTeX folksonomy network </dc:subject><content:encoded>&lt;span class=&#034;authorEditorList&#034;&gt;&lt;a href=&#034;/author/Cattuto&#034;&gt;Ciro Cattuto&lt;/a&gt;, &lt;a href=&#034;/author/Schmitz&#034;&gt;Christoph Schmitz&lt;/a&gt;, &lt;a href=&#034;/author/Baldassarri&#034;&gt;Andrea Baldassarri&lt;/a&gt;, &lt;a href=&#034;/author/Servedio&#034;&gt;Vito D. P. Servedio&lt;/a&gt;, &lt;a href=&#034;/author/Loreto&#034;&gt;Vittorio Loreto&lt;/a&gt;, &lt;a href=&#034;/author/Hotho&#034;&gt;Andreas Hotho&lt;/a&gt;, &lt;a href=&#034;/author/Grahl&#034;&gt;Miranda Grahl&lt;/a&gt;,  and &lt;a href=&#034;/author/Stumme&#034;&gt;Gerd Stumme&lt;/a&gt; &lt;/span&gt;&lt;em&gt;AI Communications Journal, Special Issue on ``Network Analysis in Natural Sciences and Engineering&amp;#039;&amp;#039;&lt;/em&gt; &lt;em&gt;20(4):245-262&lt;/em&gt; (&lt;em&gt;2007&lt;/em&gt;)</content:encoded><taxo:topics><rdf:Bag><rdf:li rdf:resource="http://www.bibsonomy.org/tag/BibSonomy"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/BibTeX"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/folksonomy"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/network"/></rdf:Bag></taxo:topics><burst:publication><rdf:Description rdf:about="http://www.bibsonomy.org/bibtex/2da6c676c5664017247c7564fc247b190/sdo"><owl:sameAs rdf:resource="http://www.bibsonomy.org/uri/bibtex/2da6c676c5664017247c7564fc247b190/sdo"/><rdf:type rdf:resource="http://swrc.ontoware.org/ontology#Article"/><owl:sameAs rdf:resource="http://www.kde.cs.uni-kassel.de/stumme/papers/2007/cattuto2007network.pdf"/><swrc:date>Fri Jan 29 16:45:14 CET 2010</swrc:date><swrc:journal>AI Communications Journal, Special Issue on ``Network Analysis in Natural Sciences and Engineering&#039;&#039;</swrc:journal><swrc:number>4</swrc:number><swrc:pages>245-262</swrc:pages><swrc:publisher><swrc:Organization swrc:name="IOS Press"/></swrc:publisher><swrc:title>Network Properties of Folksonomies</swrc:title><swrc:volume>20</swrc:volume><swrc:year>2007</swrc:year><swrc:keywords>BibSonomy BibTeX folksonomy network </swrc:keywords><swrc:hasExtraField><swrc:Field swrc:value="0921-7126" swrc:key="issn"/></swrc:hasExtraField><swrc:hasExtraField><swrc:Field swrc:value="67" swrc:key="vgwort"/></swrc:hasExtraField><swrc:author><rdf:Seq><rdf:_1><swrc:Person swrc:name="Ciro Cattuto"/></rdf:_1><rdf:_2><swrc:Person swrc:name="Christoph Schmitz"/></rdf:_2><rdf:_3><swrc:Person swrc:name="Andrea Baldassarri"/></rdf:_3><rdf:_4><swrc:Person swrc:name="Vito D. P. Servedio"/></rdf:_4><rdf:_5><swrc:Person swrc:name="Vittorio Loreto"/></rdf:_5><rdf:_6><swrc:Person swrc:name="Andreas Hotho"/></rdf:_6><rdf:_7><swrc:Person swrc:name="Miranda Grahl"/></rdf:_7><rdf:_8><swrc:Person swrc:name="Gerd Stumme"/></rdf:_8></rdf:Seq></swrc:author><swrc:editor><rdf:Seq><rdf:_1><swrc:Person swrc:name="Susanne Hoche"/></rdf:_1><rdf:_2><swrc:Person swrc:name="Andreas Nürnberger"/></rdf:_2><rdf:_3><swrc:Person swrc:name="Jürgen Flach"/></rdf:_3></rdf:Seq></swrc:editor></rdf:Description></burst:publication><description>See http://www.bibsonomy.org/bibtex/2e1a5234a896b1f422473b1fe5d91e26b/stumme for a shorter workshop version.</description></item><item rdf:about="http://www.bibsonomy.org/bibtex/2da6c676c5664017247c7564fc247b190/kasimiro"><title>Network Properties of Folksonomies</title><link>http://www.bibsonomy.org/bibtex/2da6c676c5664017247c7564fc247b190/kasimiro</link><dc:creator>kasimiro</dc:creator><dc:date>2009-07-21T09:25:39+02:00</dc:date><dc:subject>analysis folksonomy network </dc:subject><content:encoded>&lt;span class=&#034;authorEditorList&#034;&gt;&lt;a href=&#034;/author/Cattuto&#034;&gt;Ciro Cattuto&lt;/a&gt;, &lt;a href=&#034;/author/Schmitz&#034;&gt;Christoph Schmitz&lt;/a&gt;, &lt;a href=&#034;/author/Baldassarri&#034;&gt;Andrea Baldassarri&lt;/a&gt;, &lt;a href=&#034;/author/Servedio&#034;&gt;Vito D. P. Servedio&lt;/a&gt;, &lt;a href=&#034;/author/Loreto&#034;&gt;Vittorio Loreto&lt;/a&gt;, &lt;a href=&#034;/author/Hotho&#034;&gt;Andreas Hotho&lt;/a&gt;, &lt;a href=&#034;/author/Grahl&#034;&gt;Miranda Grahl&lt;/a&gt;,  and &lt;a href=&#034;/author/Stumme&#034;&gt;Gerd Stumme&lt;/a&gt; &lt;/span&gt;&lt;em&gt;AI Communications Journal, Special Issue on ``Network Analysis in Natural Sciences and Engineering&amp;#039;&amp;#039;&lt;/em&gt; &lt;em&gt;20(4):245-262&lt;/em&gt; (&lt;em&gt;2007&lt;/em&gt;)</content:encoded><taxo:topics><rdf:Bag><rdf:li rdf:resource="http://www.bibsonomy.org/tag/analysis"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/folksonomy"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/network"/></rdf:Bag></taxo:topics><burst:publication><rdf:Description rdf:about="http://www.bibsonomy.org/bibtex/2da6c676c5664017247c7564fc247b190/kasimiro"><owl:sameAs rdf:resource="http://www.bibsonomy.org/uri/bibtex/2da6c676c5664017247c7564fc247b190/kasimiro"/><rdf:type rdf:resource="http://swrc.ontoware.org/ontology#Article"/><owl:sameAs rdf:resource="http://www.kde.cs.uni-kassel.de/stumme/papers/2007/cattuto2007network.pdf"/><swrc:date>Tue Jul 21 09:25:39 CEST 2009</swrc:date><swrc:journal>AI Communications Journal, Special Issue on ``Network Analysis in Natural Sciences and Engineering&#039;&#039;</swrc:journal><swrc:number>4</swrc:number><swrc:pages>245-262</swrc:pages><swrc:publisher><swrc:Organization swrc:name="IOS Press"/></swrc:publisher><swrc:title>Network Properties of Folksonomies</swrc:title><swrc:volume>20</swrc:volume><swrc:year>2007</swrc:year><swrc:keywords>analysis folksonomy network </swrc:keywords><swrc:hasExtraField><swrc:Field swrc:value="0921-7126" swrc:key="issn"/></swrc:hasExtraField><swrc:hasExtraField><swrc:Field swrc:value="67" swrc:key="vgwort"/></swrc:hasExtraField><swrc:author><rdf:Seq><rdf:_1><swrc:Person swrc:name="Ciro Cattuto"/></rdf:_1><rdf:_2><swrc:Person swrc:name="Christoph Schmitz"/></rdf:_2><rdf:_3><swrc:Person swrc:name="Andrea Baldassarri"/></rdf:_3><rdf:_4><swrc:Person swrc:name="Vito D. P. Servedio"/></rdf:_4><rdf:_5><swrc:Person swrc:name="Vittorio Loreto"/></rdf:_5><rdf:_6><swrc:Person swrc:name="Andreas Hotho"/></rdf:_6><rdf:_7><swrc:Person swrc:name="Miranda Grahl"/></rdf:_7><rdf:_8><swrc:Person swrc:name="Gerd Stumme"/></rdf:_8></rdf:Seq></swrc:author><swrc:editor><rdf:Seq><rdf:_1><swrc:Person swrc:name="Susanne Hoche"/></rdf:_1><rdf:_2><swrc:Person swrc:name="Andreas Nürnberger"/></rdf:_2><rdf:_3><swrc:Person swrc:name="Jürgen Flach"/></rdf:_3></rdf:Seq></swrc:editor></rdf:Description></burst:publication><description>See http://www.bibsonomy.org/bibtex/2e1a5234a896b1f422473b1fe5d91e26b/stumme for a shorter workshop version.</description></item><item rdf:about="http://www.bibsonomy.org/bibtex/2da6c676c5664017247c7564fc247b190/stumme"><title>Network Properties of Folksonomies</title><link>http://www.bibsonomy.org/bibtex/2da6c676c5664017247c7564fc247b190/stumme</link><dc:creator>stumme</dc:creator><dc:date>2009-07-03T00:01:45+02:00</dc:date><dc:subject>2007 emergent fca folksonomies folksonomy itegpub l3s myown network semantics seminar2009 tagorapub </dc:subject><content:encoded>&lt;span class=&#034;authorEditorList&#034;&gt;&lt;a href=&#034;/author/Cattuto&#034;&gt;Ciro Cattuto&lt;/a&gt;, &lt;a href=&#034;/author/Schmitz&#034;&gt;Christoph Schmitz&lt;/a&gt;, &lt;a href=&#034;/author/Baldassarri&#034;&gt;Andrea Baldassarri&lt;/a&gt;, &lt;a href=&#034;/author/Servedio&#034;&gt;Vito D. 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Servedio&lt;/a&gt;, &lt;a href=&#034;/author/Loreto&#034;&gt;Vittorio Loreto&lt;/a&gt;, &lt;a href=&#034;/author/Hotho&#034;&gt;Andreas Hotho&lt;/a&gt;, &lt;a href=&#034;/author/Grahl&#034;&gt;Miranda Grahl&lt;/a&gt;,  and &lt;a href=&#034;/author/Stumme&#034;&gt;Gerd Stumme&lt;/a&gt; &lt;/span&gt;&lt;em&gt;AI Communications Journal, Special Issue on ``Network Analysis in Natural Sciences and Engineering&amp;#039;&amp;#039;&lt;/em&gt; &lt;em&gt;20(4):245-262&lt;/em&gt; (&lt;em&gt;2007&lt;/em&gt;)</content:encoded><taxo:topics><rdf:Bag><rdf:li rdf:resource="http://www.bibsonomy.org/tag/2007"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/emergent"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/fca"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/folksonomies"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/folksonomy"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/itegpub"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/l3s"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/myown"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/network"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/semantics"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/seminar2009"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/tagorapub"/></rdf:Bag></taxo:topics><burst:publication><rdf:Description rdf:about="http://www.bibsonomy.org/bibtex/2da6c676c5664017247c7564fc247b190/stumme"><owl:sameAs rdf:resource="http://www.bibsonomy.org/uri/bibtex/2da6c676c5664017247c7564fc247b190/stumme"/><rdf:type rdf:resource="http://swrc.ontoware.org/ontology#Article"/><owl:sameAs rdf:resource="http://www.kde.cs.uni-kassel.de/stumme/papers/2007/cattuto2007network.pdf"/><swrc:date>Fri Jul 03 00:01:45 CEST 2009</swrc:date><swrc:journal>AI Communications Journal, Special Issue on ``Network Analysis in Natural Sciences and Engineering&#039;&#039;</swrc:journal><swrc:number>4</swrc:number><swrc:pages>245-262</swrc:pages><swrc:publisher><swrc:Organization swrc:name="IOS Press"/></swrc:publisher><swrc:title>Network Properties of Folksonomies</swrc:title><swrc:volume>20</swrc:volume><swrc:year>2007</swrc:year><swrc:keywords>2007 emergent fca folksonomies folksonomy itegpub l3s myown network semantics seminar2009 tagorapub </swrc:keywords><swrc:hasExtraField><swrc:Field swrc:value="0921-7126" swrc:key="issn"/></swrc:hasExtraField><swrc:hasExtraField><swrc:Field swrc:value="67" swrc:key="vgwort"/></swrc:hasExtraField><swrc:author><rdf:Seq><rdf:_1><swrc:Person swrc:name="Ciro Cattuto"/></rdf:_1><rdf:_2><swrc:Person swrc:name="Christoph Schmitz"/></rdf:_2><rdf:_3><swrc:Person swrc:name="Andrea Baldassarri"/></rdf:_3><rdf:_4><swrc:Person swrc:name="Vito D. P. Servedio"/></rdf:_4><rdf:_5><swrc:Person swrc:name="Vittorio Loreto"/></rdf:_5><rdf:_6><swrc:Person swrc:name="Andreas Hotho"/></rdf:_6><rdf:_7><swrc:Person swrc:name="Miranda Grahl"/></rdf:_7><rdf:_8><swrc:Person swrc:name="Gerd Stumme"/></rdf:_8></rdf:Seq></swrc:author><swrc:editor><rdf:Seq><rdf:_1><swrc:Person swrc:name="Susanne Hoche"/></rdf:_1><rdf:_2><swrc:Person swrc:name="Andreas Nürnberger"/></rdf:_2><rdf:_3><swrc:Person swrc:name="Jürgen Flach"/></rdf:_3></rdf:Seq></swrc:editor></rdf:Description></burst:publication><description>See http://www.bibsonomy.org/bibtex/2e1a5234a896b1f422473b1fe5d91e26b/stumme for a shorter workshop version.</description></item><item rdf:about="http://www.bibsonomy.org/bibtex/2d87e198a6d564ae8a8fe151e0a96fa0f/anneba"><title>Network Properties of Folksonomies</title><link>http://www.bibsonomy.org/bibtex/2d87e198a6d564ae8a8fe151e0a96fa0f/anneba</link><dc:creator>anneba</dc:creator><dc:date>2009-02-24T14:21:21+01:00</dc:date><dc:subject>folksonomy social-network </dc:subject><content:encoded>&lt;span class=&#034;authorEditorList&#034;&gt;&lt;a href=&#034;/author/Cattuto&#034;&gt;C. Cattuto&lt;/a&gt;, &lt;a href=&#034;/author/Schmitz&#034;&gt;C. Schmitz&lt;/a&gt;, &lt;a href=&#034;/author/Baldassarri&#034;&gt;A. Baldassarri&lt;/a&gt;, &lt;a href=&#034;/author/Servedio&#034;&gt;V. D. P. Servedio&lt;/a&gt;, &lt;a href=&#034;/author/Loreto&#034;&gt;V. Loreto&lt;/a&gt;, &lt;a href=&#034;/author/Hotho&#034;&gt;A. Hotho&lt;/a&gt;, &lt;a href=&#034;/author/Grahl&#034;&gt;M. Grahl&lt;/a&gt;,  and &lt;a href=&#034;/author/Stumme&#034;&gt;G. Stumme&lt;/a&gt; &lt;/span&gt;&lt;em&gt;AI Communications&lt;/em&gt; &lt;em&gt;20(4):245 - 262&lt;/em&gt; (&lt;em&gt;2007&lt;/em&gt;)</content:encoded><taxo:topics><rdf:Bag><rdf:li rdf:resource="http://www.bibsonomy.org/tag/folksonomy"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/social-network"/></rdf:Bag></taxo:topics><burst:publication><rdf:Description rdf:about="http://www.bibsonomy.org/bibtex/2d87e198a6d564ae8a8fe151e0a96fa0f/anneba"><owl:sameAs rdf:resource="http://www.bibsonomy.org/uri/bibtex/2d87e198a6d564ae8a8fe151e0a96fa0f/anneba"/><rdf:type rdf:resource="http://swrc.ontoware.org/ontology#Article"/><owl:sameAs rdf:resource="http://www.kde.cs.uni-kassel.de/hotho/pub/2007/aicomm_2007_folksonomy_clustering.pdf"/><swrc:date>Tue Feb 24 14:21:21 CET 2009</swrc:date><swrc:journal>AI Communications</swrc:journal><swrc:number>4</swrc:number><swrc:pages>245 - 262</swrc:pages><swrc:title>Network Properties of Folksonomies</swrc:title><swrc:volume>20</swrc:volume><swrc:year>2007</swrc:year><swrc:keywords>folksonomy social-network </swrc:keywords><swrc:abstract>Social resource sharing systems like YouTube and del.icio.us have acquired a large number of users within the last few years. They provide rich resources for data analysis, information retrieval, and knowledge discovery applications. A first step towards this end is to gain better insights into content and structure of these systems. In this paper, we will analyse the main network characteristics of two of these systems. We consider their underlying data structures – so-called folksonomies – as tri-partite hypergraphs, and adapt classical network measures like characteristic path length and clustering coefficient to them. Subsequently, we introduce a network of tag cooccurrence and investigate some of its statistical properties, focusing on correlations in node connectivity and pointing out features that reflect emergent semantics within the folksonomy. We show that simple statistical indicators unambiguously spot non-social behavior
such as spam.</swrc:abstract><swrc:hasExtraField><swrc:Field swrc:value="0921-7126" swrc:key="issn"/></swrc:hasExtraField><swrc:hasExtraField><swrc:Field swrc:value="67" swrc:key="vgwort"/></swrc:hasExtraField><swrc:author><rdf:Seq><rdf:_1><swrc:Person swrc:name="C. Cattuto"/></rdf:_1><rdf:_2><swrc:Person swrc:name="C. Schmitz"/></rdf:_2><rdf:_3><swrc:Person swrc:name="A. Baldassarri"/></rdf:_3><rdf:_4><swrc:Person swrc:name="V. D. P. Servedio"/></rdf:_4><rdf:_5><swrc:Person swrc:name="V. Loreto"/></rdf:_5><rdf:_6><swrc:Person swrc:name="A. Hotho"/></rdf:_6><rdf:_7><swrc:Person swrc:name="M. Grahl"/></rdf:_7><rdf:_8><swrc:Person swrc:name="G. Stumme"/></rdf:_8></rdf:Seq></swrc:author></rdf:Description></burst:publication></item><item rdf:about="http://www.bibsonomy.org/bibtex/2d87e198a6d564ae8a8fe151e0a96fa0f/steff83"><title>Network Properties of Folksonomies</title><link>http://www.bibsonomy.org/bibtex/2d87e198a6d564ae8a8fe151e0a96fa0f/steff83</link><dc:creator>steff83</dc:creator><dc:date>2009-02-10T11:10:33+01:00</dc:date><dc:subject>folksonomy master_thesis network properties </dc:subject><content:encoded>&lt;span class=&#034;authorEditorList&#034;&gt;&lt;a href=&#034;/author/Cattuto&#034;&gt;C. Cattuto&lt;/a&gt;, &lt;a href=&#034;/author/Schmitz&#034;&gt;C. Schmitz&lt;/a&gt;, &lt;a href=&#034;/author/Baldassarri&#034;&gt;A. Baldassarri&lt;/a&gt;, &lt;a href=&#034;/author/Servedio&#034;&gt;V. D. P. Servedio&lt;/a&gt;, &lt;a href=&#034;/author/Loreto&#034;&gt;V. Loreto&lt;/a&gt;, &lt;a href=&#034;/author/Hotho&#034;&gt;A. Hotho&lt;/a&gt;, &lt;a href=&#034;/author/Grahl&#034;&gt;M. Grahl&lt;/a&gt;,  and &lt;a href=&#034;/author/Stumme&#034;&gt;G. Stumme&lt;/a&gt; &lt;/span&gt;&lt;em&gt;AI Communications&lt;/em&gt; &lt;em&gt;20(4):245 - 262&lt;/em&gt; (&lt;em&gt;2007&lt;/em&gt;)</content:encoded><taxo:topics><rdf:Bag><rdf:li rdf:resource="http://www.bibsonomy.org/tag/folksonomy"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/master_thesis"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/network"/><rdf:li rdf:resource="http://www.bibsonomy.org/tag/properties"/></rdf:Bag></taxo:topics><burst:publication><rdf:Description rdf:about="http://www.bibsonomy.org/bibtex/2d87e198a6d564ae8a8fe151e0a96fa0f/steff83"><owl:sameAs rdf:resource="http://www.bibsonomy.org/uri/bibtex/2d87e198a6d564ae8a8fe151e0a96fa0f/steff83"/><rdf:type rdf:resource="http://swrc.ontoware.org/ontology#Article"/><owl:sameAs rdf:resource="http://www.kde.cs.uni-kassel.de/hotho/pub/2007/aicomm_2007_folksonomy_clustering.pdf"/><swrc:date>Tue Feb 10 11:10:33 CET 2009</swrc:date><swrc:journal>AI Communications</swrc:journal><swrc:number>4</swrc:number><swrc:pages>245 - 262</swrc:pages><swrc:title>Network Properties of Folksonomies</swrc:title><swrc:volume>20</swrc:volume><swrc:year>2007</swrc:year><swrc:keywords>folksonomy master_thesis network properties </swrc:keywords><swrc:hasExtraField><swrc:Field swrc:value="67" swrc:key="vgwort"/></swrc:hasExtraField><swrc:author><rdf:Seq><rdf:_1><swrc:Person swrc:name="C. Cattuto"/></rdf:_1><rdf:_2><swrc:Person swrc:name="C. Schmitz"/></rdf:_2><rdf:_3><swrc:Person swrc:name="A. Baldassarri"/></rdf:_3><rdf:_4><swrc:Person swrc:name="V. D. P. Servedio"/></rdf:_4><rdf:_5><swrc:Person swrc:name="V. Loreto"/></rdf:_5><rdf:_6><swrc:Person swrc:name="A. Hotho"/></rdf:_6><rdf:_7><swrc:Person swrc:name="M. Grahl"/></rdf:_7><rdf:_8><swrc:Person swrc:name="G. Stumme"/></rdf:_8></rdf:Seq></swrc:author></rdf:Description></burst:publication></item><item rdf:about="http://www.bibsonomy.org/bibtex/2d87e198a6d564ae8a8fe151e0a96fa0f/folke"><title>Network Properties of Folksonomies</title><link>http://www.bibsonomy.org/bibtex/2d87e198a6d564ae8a8fe151e0a96fa0f/folke</link><dc:creator>folke</dc:creator><dc:date>2009-01-07T13:03:32+01:00</dc:date><dc:subject>clustering community folksonomy </dc:subject><content:encoded>&lt;span class=&#034;authorEditorList&#034;&gt;&lt;a href=&#034;/author/Cattuto&#034;&gt;C. Cattuto&lt;/a&gt;, &lt;a href=&#034;/author/Schmitz&#034;&gt;C. Schmitz&lt;/a&gt;, &lt;a href=&#034;/author/Baldassarri&#034;&gt;A. Baldassarri&lt;/a&gt;, &lt;a href=&#034;/author/Servedio&#034;&gt;V. D. P. Servedio&lt;/a&gt;, &lt;a href=&#034;/author/Loreto&#034;&gt;V. Loreto&lt;/a&gt;, &lt;a href=&#034;/author/Hotho&#034;&gt;A. Hotho&lt;/a&gt;, &lt;a href=&#034;/author/Grahl&#034;&gt;M. Grahl&lt;/a&gt;,  and &lt;a href=&#034;/author/Stumme&#034;&gt;G. 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