This is a read only archive of pad.okfn.org. See the shutdown announcement for details.

• Graphs
• RelFinder
• http://www.visualdataweb.org/relfinder/relfinder.php (English)
• http://it.dbpedia.org/rfind/RelFinder.swf (Italian)
• LodLive: http://en.lodlive.it/
• LOD Cloud: http://data.dws.informatik.uni-mannheim.de/lodcloud/2014/LinkedOpenDataCloud2014.svg

• Datasets
• DBpedia: http://dbpedia.org
• Freebase: http://www.freebase.com/
• GeoNames: http://www.geonames.org/
• Wikidata: http://www.wikidata.org/
• Datahub: http://datahub.io

• Linked Data interface
• Human: http://dbpedia.org/page/Santa_Clara,_California VS Machine: http://dbpedia.org/data/Santa_Clara,_California.ntriples
• http://nl.dbpedia.org/resource/Utrecht_(stad)
• http://it.dbpedia.org/resource/Italia

• Ontology
• http://mappings.dbpedia.org/server/ontology/classes/
• Mappings
• http://mappings.dbpedia.org/
• Latest Dumps
• http://downloads.dbpedia.org/current/
• SPARQL Endpoint (queries)
• http://dbpedia.org/sparql

• Applications
• Question answering
• “Which are those black and white movies produced in Italy that have soundtracks which were composed by musicians who were born in a city of the Trentino-Alto-Adige region with less than 40,000 inhabitants?”
• Query
• SELECT DISTINCT ?title
• WHERE {
•   ?movie
•     a <http://dbpedia.org/ontology/Film> ;
•     <http://dbpedia.org/ontology/country> <http://it.dbpedia.org/resource/Italia> ;
•     <http://dbpedia.org/ontology/filmColourType> ?colour ;
•     <http://www.w3.org/2000/01/rdf-schema#label> ?title ;
•     <http://dbpedia.org/ontology/musicComposer> ?composer .
•   ?composer <http://dbpedia.org/ontology/birthPlace> ?birthplace . 
•   ?birthplace
•     <http://dbpedia.org/ontology/administrativeDistrict> <http://it.dbpedia.org/resource/Trentino-Alto_Adige> ;
•     <http://dbpedia.org/ontology/populationTotal> ?population .
•   FILTER ( ?colour in ("B/N"@it, "bianco/nero"@it) AND ?population < 40000 )
• }
• Results: http://bit.ly/1ugGDnB
• Entity linking
• DataTXT: https://dandelion.eu/products/datatxt/nex/demo/
• DBpedia Spotlight: http://dbpedia-spotlight.github.io/demo/
• Machine Linking: http://www.machinelinking.com/wp/demo/text-annotation/
• Alchemy API: http://www.alchemyapi.com/products/demo/alchemylanguage/

• Walkthroughs
• Ingestion
• https://github.com/dbpedia/dbpedia-documentation/wiki/Loading-Data-Virtuoso
• Extraction
• https://github.com/dbpedia/extraction-framework/wiki/Extraction-Instructions
• https://github.com/dbpedia/extraction-framework/wiki/Dbpedia-Abstract-Extraction-step-by-step-guide
• https://joernhees.de/blog/2014/04/23/setting-up-a-local-dbpedia-3-9-mirror-with-virtuoso-7/
• Pre-loaded
• http://kidehen.blogspot.co.uk/2014/03/preloaded-preconfigured-dbpedia.html

• ULI Demo
• http://demo.icu-project.org/icu-bin/icusegments
• The "Mr." SPARQL query
• SELECT ?entryExample ?exampleTested ?indegreeRanking
• WHERE { 
•   <http://dbpedia.org/resource/Mr.>
•     rdfs:label ?entryExample ;
•     rdfs:comment ?exampleTested .
•   FILTER ( lang(?entryExample) = lang(?exampleTested) )
•   #subselect:
•   { SELECT count(?in) as ?indegreeRanking
•     WHERE { ?in ?p <http://dbpedia.org/resource/Mr.> }
•   }
• }
• LIMIT 100{
• Results: http://bit.ly/1A2PPzh