Questions tagged [rdf]

The Resource Description Framework (RDF) is a language for representing information about resources in the World Wide Web. It is a syntax independent data model that may be serialised in a variety of concrete syntaxes. RDF is the core data format used on the Semantic Web.

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(How) Was SPARQL influenced by erotetics?

Erotetics is the logic of questions and answers. The field has been developed over the last hundred years and is nicely summarized by (Wisniewski 2015). How, if at all, was SPARQL, the RDF query ...
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Is there any available dataset describing types of sensors (ideally using SSNO)?

I am developing an application that tries to predict what type of sensors would be needed in a working environment to achieve certain goals. In order to function, this application needs to know (A) ...
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Should a Linked Data Platform (LDP) server answer to a request for a container that does not exist in the dataset?

I'm developing a partial implementation of the LDP specification and I have the following issue: Suppose that my dataset contains book resources with URIs like: http://example.org/book/lord-of-the-...
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Wikidata SPARQL - get company entities and the location of their headquarters

I'm having trouble extracting location attributes of company HQ's. My query: finds all companies or sub-classes, and returns some basic properties such as ISIN and URL, and the Headquarter location. ...
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How to use wikidata property paths?

Given a term/concept, I want to decide if it belongs to computer science. For that, I am checking if the concept has a property path to computer science node. In other words, I am checking whether ...
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Real world objects and digital contents represented in RDF

Not sure if this is the appropriate forum for this question, especially after the Dataversity Q&A site shutdown, so please feel free to suggest better avenues. I am implementing an LDP server ...
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23 views

What is the difference between resource and category of DBpedia

My initial understanding of DBpedia was that resources are lower level entities and categories are higher level entities. Since categories are higher level, I thought that they do not have a ...
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57 views

How to identify general medical terms using Wikipedia/DBpedia/WikiData

Given a list of medical terms, I want to identify and remove the general (less granular) terms. For example consider the below mentioned word list: - kartagener s syndrome - disease treatment - ...
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Ontology for QoS, i.e. download/upload speed, throughput

There are lots of papers, but don't publish their actual ontology, only give you figures/graphs (i.e. QoSOnt, OWL-QoS). Is there a properly hosted ontology with an actual owl file and namespace ...
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45 views

What limitations, if any, are there on what kind of concepts can be declared using RDF?

I wanted to ask about limitations on the "concepts" that can be defined using RDF or OWL. Some concepts such as the economic term "inflation" or the concept "overwork" (as when someone works too much) ...
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Ontology for theme of a text

I'm looking for an ontology that describes the theme of a text (eg. "finance", "leisure"). A text can have multiple themes. Preferably the ontology would also have room to store a match percentage: { ...
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How come there are missing entities in this SPARQL query?

I was interested in listing all books, so I wrote: SELECT ?book ?url WHERE { ?book wdt:P31 wd:Q571 . OPTIONAL { ?url schema:about ?book . ?url schema:inLanguage "en" . ?url schema:isPartOf <...