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Can I use SPARQL to query DBPedia for information about Wiki pages such as page length or number of times an article was


Can I use SPARQL to query DBPedia for information about Wiki pages such as page length or number of times an article was

By : Romain
Date : November 29 2020, 09:01 AM
should help you out While there is such a property declared (e.g., see http://dbpedia.org/ontology/wikiPageLength), it doesn't appear to actually be used in describing any resources. E.g., the following query returns 0:
code :
select (count(*) as ?n) { ?s dbo:wikiPageLength ?l }


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SPARQL and DBPedia - getting the base url from a wiki page redirect name

SPARQL and DBPedia - getting the base url from a wiki page redirect name


By : moncef amine
Date : March 29 2020, 07:55 AM
help you fix your problem I'm not 100% sure I understand your question, but it sounds like you want to start with the string "Barack" and then want to discover the URI that identifies Barack Obama, http://dbpedia.org/resource/Barack_Obama.
This query does that:
code :
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX dbo: <http://dbpedia.org/ontology/>
SELECT ?redirectsTo WHERE {
  ?x rdfs:label "Barack"@en .
  ?x dbo:wikiPageRedirects ?redirectsTo
}
Using SPARQL to query DBPedia Company Information

Using SPARQL to query DBPedia Company Information


By : Boyoung Zheng
Date : March 29 2020, 07:55 AM
I hope this helps you . The reason for rdf:type in a query like the following is because (presumably), that's a class whose instances are companies. Asking for instances of the class is a way of asking for companies.
code :
select * { ?s rdf:type <http://dbpedia.org/class/yago/Company108058098> }
limit 10
select * { ?s a dbpedia-owl:Person }
limit 10
select ?iri ?logo ?description {
  ?iri a dbpedia-owl:Company ;
       dbpedia-owl:abstract ?description ;
       rdfs:label "Apple Inc."@en ;
       foaf:depiction|dbpedia-owl:thumbnail ?logo .
  filter( langMatches(lang(?description),"en") )
}
foaf:name|rdfs:label "Apple In."@en
select distinct ?iri ?logo ?description {
  values ?hasLogo { foaf:depiction dbpedia-owl:thumbnail }
  values ?hasName { foaf:name rdfs:label }
  ?iri a dbpedia-owl:Company ;
       dbpedia-owl:abstract ?description ;
       ?hasLName "Apple Inc."@en ;
       ?hasLogo ?logo .
  filter( langMatches(lang(?description),"en") )
}
DBpedia SPARQL query for song information for ID3 tag

DBpedia SPARQL query for song information for ID3 tag


By : user3712941
Date : March 29 2020, 07:55 AM
Hope this helps With DBpedia, you first need to define the type of instance you are trying to extract. In this particular example, you are looking for albums thus:
code :
?album a dbpedia-owl:Album .
rdfs:label
dbpedia-owl:artist
dbpedia-owl:genre
dbpedia-owl:releaseDate
dbpprop:title
SELECT distinct *
WHERE {
    ?album a dbpedia-owl:Album .
    ?album rdfs:label ?albumName.
    ?album dbpedia-owl:artist ?Artist.
Optional{
    ?album dbpedia-owl:genre ?genre.
    ?album dbpedia-owl:releaseDate ?date.
    ?album dbpprop:title ?title.
}
Filter ( 
    lang(?albumName)='en' && 
    xsd:dateTime(?date) >= '2010-01-01T00:00:00Z'^^xsd:dateTime)
}
SELECT distinct * WHERE { 
    ?album a dbpedia-owl:Album.
Filter( ?album=dbpedia:Hybrid_Theory)
}
SPARQL DBpedia query times out

SPARQL DBpedia query times out


By : prafull Kumar
Date : March 29 2020, 07:55 AM
should help you out Do a full text search first with bif:contains, and filter that afterwards:
code :
SELECT * {
  ?uri rdfs:label ?name .
  ?name bif:contains "Manhattan" . # Or "'Manhattan*'"
  FILTER(STRSTARTS(?name, "Manhattan"))
}
SPARQL - Query any information of things in DBpedia

SPARQL - Query any information of things in DBpedia


By : use-ing-nix
Date : March 29 2020, 07:55 AM
To fix this issue I suggest you check out the Faceted Browser, a feature of Virtuoso, which powers the public DBpedia endpoints.
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