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Feed "answers.semanticweb.com"

July 10, 2016

I have been searching in vain for wiktionary RDF extraction described here:

http://wiki.dbpedia.org/wiktionary-rdf-extraction

I tried to contact them for help but haven't gotten a response. I dont need the absolute newest version, I would be happy with anything. Alternatively, if anyone knew a mechanism (meaning the...

Feed "stackoverflow.com"

August 24, 2016

I would like to get all the members of a specific category from Wikidata. For example, I would like to get all the films (instances of film: P31 Q11424) from the category "Category:Films set in Stockholm" (Q7519614). However, I can't seem to find what the relationship would be. DBpedia uses "subject of" but the Wikidata equivalent (P805) doesn't return any results.

I also thought I...

August 15, 2016

I am writing my Master thesis about Medications and their contained substances. I already receive a set of drugs containing their substances with their German name (e.g. Acetylsalicylsäure, Hydrochlorothiazid) as String.

Now I want to query DBpedia for their ATC codes.

Because I am not very experienced with SPARQL queries I'm not sure how to...

August 12, 2016

I am completely new to sparql.

I want to extract the birthplace of american CEOs (the name of the State they were born in). Those CEOs should have been (currently or in the past) the CEO of companies in the list of S&P index (https://en.wikipedia.org/wiki/List_of_S%26P_500_companies). I am...

August 12, 2016

I have set up DBpedia 3.9 mirror with Virtuoso 7.2.1 in my local pc. Now I have some data in RDF/XML format and want to import them into the local Virtuoso,so that I can run SPARQL query on them. Can anyone help me to do it? Is RDF/XML format right enough to do that or any other format needed for it. Please help me.

August 12, 2016

I'm really new to wikidata. I just figured that wikidata uses a lot of reification.

Suppose we want to get all information available for Obama. If we are going to do it from DBpedia, we would just use a simple query: select * where {<http://dbpedia.org/resource/Barack_Obama> ?p ?o .} This would return all the properties and values with Obama being the subject. Essentially the...

August 03, 2016

I have been trying to get the labels or literal values using sparql query. The current query I have is a construct query. It has been working out quite correctly. I am using jena model to read get the resultset.

String queryString = "PREFIX owl: <http://www.w3.org/2002/07/owl#>" + "PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>" + "PREFIX rdfs: <...

August 02, 2016

i'm trying to get skos:broader of a given dbpedia category, but it gives me a null result, this is my sparql request:

select ?value where { <http://dbpedia.org/page/Category:Watches> skos:broader ?value }

August 01, 2016

I want to get for a given Dbpedia Resource it's Rdfs: label, for example for: http://fr.dbpedia.org/resource/Automobile I want to get just Automobile, I tried with easy RDF :

$label= new \EasyRdf\Graph; $re= $label->label('http://fr.dbpedia.org/resource/Automobile'); var_dump...

August 01, 2016

My objective for this program is to run a Sparql query via java and obtain the respective results in the Console.

If i am not wrong, the error is because of a missing jar file. However, in my opinion the required jar files have been added. I have added the following jar files : Jena-2.1.jar and arq-2.8.7.jar.

My code is as follows:

public class Example { public static...

July 30, 2016

I have a list with movie titles and want to look these up in DBpedia for meta information like "director". But I have trouble to identify the correct movie with SPARQL, because the titles sometimes don't exactly match.

How can I get the best match for a movie title from DBpedia using SPARQL?

Some...