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	<title>Sparna Blog &#187; knowledge representation</title>
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	<description>Web de données &#124; Architecture de l&#039;information &#124; Accès aux connaissances</description>
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		<title>New version of SKOS Play for taxonomy visualization</title>
		<link>https://blog.sparna.fr/2013/08/26/new-version-of-skos-play-for-taxonomy-visualization/</link>
		<comments>https://blog.sparna.fr/2013/08/26/new-version-of-skos-play-for-taxonomy-visualization/#comments</comments>
		<pubDate>Mon, 26 Aug 2013 10:15:31 +0000</pubDate>
		<dc:creator><![CDATA[Thomas Francart]]></dc:creator>
				<category><![CDATA[Linked Data]]></category>
		<category><![CDATA[SKOS]]></category>
		<category><![CDATA[SKOS Play]]></category>
		<category><![CDATA[Thesaurus]]></category>
		<category><![CDATA[dataviz]]></category>
		<category><![CDATA[knowledge representation]]></category>
		<category><![CDATA[RDF]]></category>
		<category><![CDATA[SPARQL]]></category>
		<category><![CDATA[taxonomy]]></category>
		<category><![CDATA[thesaurus]]></category>
		<category><![CDATA[visualization]]></category>

		<guid isPermaLink="false">http://blog.sparna.fr/?p=441</guid>
		<description><![CDATA[<p>Today I have released a new version of SKOS Play with some major enhancements. With SKOS Play you can generate reports of taxonomies expressed in SKOS; the application leverages semantic technologies (RDF, SPARQL, inference, Linked Data) to read a taxonomy and generate downloadable HTML or PDF documents to list concepts, get a translation table, generate&#8230;</p>
<p>Cet article <a rel="nofollow" href="https://blog.sparna.fr/2013/08/26/new-version-of-skos-play-for-taxonomy-visualization/">New version of SKOS Play for taxonomy visualization</a> est apparu en premier sur <a rel="nofollow" href="https://blog.sparna.fr">Sparna Blog</a>.</p>
]]></description>
				<content:encoded><![CDATA[<p style="text-align: justify;">Today I have released a new version of <a href="http://labs.sparna.fr/skos-play" target="_blank">SKOS Play</a> with some major enhancements. With SKOS Play you can generate reports of taxonomies expressed in <a href="http://www.w3.org/TR/2009/REC-skos-reference-20090818/" target="_blank">SKOS</a>; the application leverages semantic technologies (RDF, SPARQL, inference, Linked Data) to read a taxonomy and generate downloadable HTML or PDF documents to list concepts, get a translation table, generate an alphabetical index, a hierarchical tree, or even data visualizations of a thesaurus using the <a href="http://d3js.org" target="_blank">d3js library</a>.</p>
<p style="text-align: justify;"><span id="more-441"></span></p>
<p style="text-align: justify;">I have received some feedback during summer, and I thank everyone that took the time to write and share ideas or report problems. This new version (0.40) brings the following new features and enhancements :</p>
<ul>
<li style="text-align: justify;">2 new visualisations :
<ul>
<li>concept listing : lists all the concepts with all their attributes in a given language; this is close to the existing &laquo;&nbsp;alphabetical index expanded&nbsp;&raquo;, but while the &laquo;&nbsp;alphabetical index&nbsp;&raquo; view is label-oriented (each label is an entry in the list), this one is concept-oriented (each concept is an entry in the list);</li>
<li>language correspondence table : generates a 2-columns table with the translation of each concept in a target language; this allows to review thesaurus translations, and immediately see which concept is missing a prefLabel in a target language;</li>
</ul>
</li>
<li style="text-align: justify;">complete re-engineering of the internal &laquo;&nbsp;display data model&nbsp;&raquo;, allowing to easily add new visualisations in the future;</li>
<li style="text-align: justify;">included the <a href="http://www.reegle.info/glossary" target="_blank">Reegle Thesaurus for clean energy</a> as a thesaurus example;</li>
<li style="text-align: justify;">added the ability to read SKOS data encoded in <a href="http://www.w3.org/TR/rdfa-lite/" target="_blank">RDFa</a> attributes within an HTML page (using the <a href="http://semarglproject.org/" target="_blank">semargl library</a>) (but I am still looking for a good example of this);</li>
<li style="text-align: justify;">enhanced header generation : header now tries to read a dcterms:description or dc:description to include in the header; the concept scheme title is read from skos:prefLabel, dc:title or rdfs:label;</li>
<li style="text-align: justify;">enhanced &laquo;&nbsp;section&nbsp;&raquo; generation in PDF documents : each section now generates a page break;</li>
</ul>
<p>Finally, last but not least, you can install a local version of SKOS Play to work around the 5000 concepts limit on the online server. This is as easy as 1,2,3 (a simple war to deploy on Tomcat) and I wrote a <a href="https://bitbucket.org/tfrancart/sparna/wiki/HowTo-SKOSPlayOnTomcat">simple procedure on how to deploy SKOS Play on Tomcat</a>. Note that I do not garantee that the online version of SKOS Play be always available in the future; hosting and maintaining this free application has a cost; time will tell how the project evolves.</p>
<p>I hope to write more about the application, especially about data integration of the <a href="http://lov.okfn.org/dataset/lov/">LOV</a> taxonomy, _not_ expressed in SKOS, but that you can still feed to SKOS Play &#8211; with some tricks ! &#8211; or about how can Linked Data be leveraged to read thesaurus alignments (by the way, don&rsquo;t forget you can always click a label on the HTML visualizations to navigate the concept URI). More on that in the future. If you like SKOS Play, use it, show it, share it !</p>
<p>Cet article <a rel="nofollow" href="https://blog.sparna.fr/2013/08/26/new-version-of-skos-play-for-taxonomy-visualization/">New version of SKOS Play for taxonomy visualization</a> est apparu en premier sur <a rel="nofollow" href="https://blog.sparna.fr">Sparna Blog</a>.</p>
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