semantic-web Questions
11
I'm looking for a tool that will render a RDF graph in a reasonably useful graphic format. The primary purpose of the graphic format being inclusion into a PowerPoint slide or printing on a large p...
Erb asked 15/9, 2008 at 20:40
2
Solved
I am modelling university data using an OWL ontology with relevant classes, object properties, etc. I have the university data lying in a simple text file (say CSV). I want to create ontologies usi...
Avaria asked 30/10, 2012 at 21:30
2
Solved
I'm creating linked data of materials and their physical properties, and I'm having trouble with setting units for certain properties. My individual material :AlMg3 has some mechanical properties l...
Scauper asked 27/11, 2013 at 16:51
3
I'm looking forward to implement something like google direct answers which uses knowledge graph, is there any useful resource can I read ? also Where can I find data for that?
Exospore asked 25/5, 2012 at 19:30
2
Solved
I know that I can represent any relation as a RDF triplet as in:
Barack Obama -> president of -> USA
(I am aware that this is not RDF, I am just illustrating)
But how do I add additional ...
Adrenalin asked 3/10, 2015 at 13:35
3
Solved
What to use for poem?
pre
blockquote
code
something else?
Anissaanita asked 6/2, 2013 at 16:57
3
Solved
I would like to hear from people who have real world programming experience in using SWI-Prolog's semantic library.
Edit: The reason for this question is, among the many people I talked to with pro...
Ivanivana asked 26/1, 2011 at 16:52
3
Solved
Is there any publicly available (rdf) color ontology?
Thanks for any pointer.
Sanches asked 7/9, 2012 at 21:36
5
Solved
What exactly is the difference between Semantic Web and Natural Language Processing?
Is Semantic Web a part of Natural Language Processing?
Werby asked 15/12, 2014 at 0:13
2
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As I'm learning semantic-web & sparql, sensing that RDFS & SKOS seem to offer very similar semantic relations modeling capabilities. For example,
RDFS - rdfs:subClassOf, rdfs:superClassOf ...
Rodgerrodgers asked 28/11, 2021 at 16:22
3
Solved
I'm querying an OWL ontology using SPARQL, but the results show links as well as data. I only want the data. How can I remove the link and show on the data? The output I'm getting is:
------------...
Burdett asked 13/5, 2014 at 8:27
3
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I've studied SPARQL specification on the topic and also found this answer rather interesting. However definitions are complicated enough, so I still don't see the answer for my question.
I can't f...
Upbuild asked 17/2, 2014 at 9:14
2
In Wikidata (Wikidata SPARQL endpoint), is there a way to order the SPARQL query results with something like a PageRank?
SELECT DISTINCT ?entity ?entityLabel WHERE {
?entity wdt:P31 wd:Q5.
SERVI...
Coalfish asked 11/9, 2016 at 16:3
3
Solved
I am trying to develop an OWL ontology based on different UML file resources presented in XMI format. Reading through the internet for a while now, it seems that almost all the available tools or a...
Eponymous asked 11/4, 2018 at 19:5
3
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I have created a basic Class hierarchy for my ontology in Protege-OWL Editor version 4.1. But I am not able to visualise Object Properties and relations between the classes in OwlViz other than the...
Dispassion asked 7/3, 2011 at 14:16
3
Solved
I need to reference to a Unicode character with a URI. Following IANA references list multiple schemes and namespaces but do not mention anything about identifiers for the Unicode characters. Does ...
Ashburn asked 28/7, 2012 at 9:25
4
Solved
I have a quick question about RDFa and Microdata.
My current understanding is that RDFa is RDF implemented into HTML but is complicated for new developers like myself, Microdata seems really easy ...
Nadenenader asked 22/1, 2012 at 0:11
2
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In my semantic Scandalous Poets Wiki, I'd like to be able to query all pages with properties with a particular value, ideally grouped by property. For instance, given the value "Lord Byron" I'd lik...
Distributive asked 14/6, 2012 at 1:21
2
I tried searching over the internet but could not find the right tool for the purpose, so if anyone could provide me a link to the tool which could parse and display a graph for RDF and OWL ontolog...
Keeney asked 16/4, 2017 at 2:27
4
Solved
Given a choice between OWL Property Restrictions and SHACL, is there any reason to choose the OWL approach any more?
Particularly with respect to cardinality constraints, I'm wondering whether SHA...
Crazyweed asked 26/6, 2017 at 19:23
2
Solved
Suppose I have some jena query object :
String query = "SELECT * WHERE{ ?s <some_uri> ?o ...etc. }";
Query q = QueryFactory.create(query, Syntax.syntaxARQ);
What would be the best way to g...
Clef asked 4/3, 2013 at 14:28
2
Solved
I'm playing with the idea of using SPARQL to identify conceptual overlap between things.
Take movies for example (LinkedMDB data), if I have a movie, "The Matrix" and my goal is to list movies tha...
Matchless asked 22/1, 2014 at 17:46
1
Solved
Considering a tree with the root node "A" and "hasChild" relationships (e.g. product structure) as following:
Target is to find out:
What nodes have parents outside of the tree?
In this case th...
Nepenthe asked 17/10, 2019 at 21:33
1
Solved
Trying to execute a query using rdf4j console against a sparql endpoint to find the path between 2 nodes using property wildcards but no luck. The first query gives an error as
Malformed query: N...
Ferrick asked 14/10, 2019 at 21:30
4
Solved
I can get OWLClass and access the information. The classes and individuals are along with prefix.
Is there any method to get rid of prefix?
For example:
OWLClass cls = factory.getOWLClass(":Person...
Norward asked 18/7, 2014 at 9:12
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