Questions tagged [semantic-web]

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Meta collection or database of structured vocabularies

A short question; does a meta aggregation or collection of ontologies and structured vocabularies which exist out there, each single ones being ready to be used as linked data? (ideally with links to ...
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How to know which are required and recommended linked data properties to use from schema.org

On this page, https://developers.google.com/search/docs/guides/sd-policies#completeness we can read: Specify all required properties for your rich result type. Items that are missing required ...
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DOID , SYMP Ontology Sparql Queries

I need to extract the list of diseases, categories, bodyparts and symptoms. I've found several ontologies for that datasets. Disease ontology, symptom ontology, Bioportal and Wikipedia. But I don't ...
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designing a vocabulary / ontology where classes have fixed constraints

Let's say that I have a class called "Event". Inside of this class there is a property called chanceOfSuccess which has the type QuantitativeValue. QuantitativeValue is a class that has min, max, and ...
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RDF schemas, ontologies for software libraries?

Are there RDF schemas, ontologies for software libraries? Let's say I'm a Lisp programmer familiar with quicklisp. Or I'm a C programmer using numerical packages. Or a MS programmer using DLLs. Has ...
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SPARQL - Filter wikidata identifiers

Query below gives me all programming languages entities, with their statements. Problem is that I don't need identifiers now, but these IDs might become necessary. I was just gonna model database ...
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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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1answer
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Why is the Open World assumption so central to the semantic web?

The semantics of RDF is known to be based on the open world assumption. What does that mean? How does that show up in the RDF Semantics? And why does it help in data integration?
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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 ...