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I'm working on a SPARQL query to be run against the public DBPedia endpoint http://dbpedia.org/sparql and although results are being returned, the query is taking a long time to execute. I am not an expert in SPARQL and was hoping someone could help me optimise the query if possible.
The query retrieves the following:...
I'm doing a small task on Sparql. I don't have a query but I just want to know is there a way to write a sparql query to 'Get the list of Dataset'? I'm using DBpedia Endpoint.
I'm doing small task on Sparql Query. I want to get the number of entities and number of instances. I have basic knowledge of Sparql and rdf. So I wrote sparql query to get the number of entities but i'm not 100% sure it's right. The endpoint i'm using is Dbpedia. Here's the query.
#Number of Entities SELECT (count(?entity) AS ?Entities) WHERE{ ?entity rdf:...I am new to RDF and SPARQL and am struggling with what syntax is correct. When I look up examples on the web, it looks fairly easy, but when I try to apply it and do exercises, it simply doesn't work.
Currently I have to make a list with three columns, containing the European Union countries, population size (ranked from big to small), and the type of government the country has.
...I'm doing a small exercise on sparql. Using Dbpedia Endpoint, I need to count number of triples.
This is my query
// Get the number of triples // SELECT (COUNT(*) as ?Triples) WHERE { ?s ?p ?o} ------------------------------------------------------- OUTPUT: ( ?Triples = 1625382483 )Just wondering are the query and the result right? Is this how you get...
I have a list of places in the UK. I want to get their latitude and longitude information from the http://dbpedia.org. I have just started to learn SPARQL, and I am not very familiar with the DBpedia. Currently, I am trying to retrieve at least one place, but so far no success. If I manage to get one place, then I will try to get all...
Any ideas on how to save the results of this SPARQL query into a TURTLE format?
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX dbo: <http://dbpedia.org/ontology/> select distinct ?city ?labelEn{ ?city a dbo:City. ?city rdfs:label ?labelEn. filter(lang(?labelEn) = 'en'). } LIMIT 10I want to use freetext search against the dbpedia and I'm trying the query I found on the W3C website: https://www.w3.org/2009/Talks/0615-qbe/
If I try the query WITHOUT the bif: prefix by commenting it out I get the error shown below the query:
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>...I'm a bit confused, why I cannot retrieve members of following Wikipedia Category:
http://dbpedia.org/page/List_of_members_of_the_17th_BundestagMy query, which is easy and absolutely basic:
prefix dbc: <http://dbpedia.org/resource/Category:> prefix dcterms: <http://purl.org/dc/terms/> select ?member { ?member dcterms:subject dbc:List_of_members_of_the_17th_Bundestag...I am trying to write a sparql query to get latitude and longtitude of a city based on its name, the query I found is this
PREFIX geo: <http://www.w3.org/2003/01/geo/wgs84_pos#> PREFIX dbo: <http://dbpedia.org/ontology/> SELECT * WHERE { ?s a dbo:Place . ?s geo:lat ?lat . ?s geo:long ?long . }but it outputs all the places. I want to type in name of a city in a...