7
votes
Accepted
Wikidata get property of property
The point in time property of the award received is what Wikidata calls a qualifier:
Along with sources and ranks, qualifiers allow statements to be expanded on, annotated, or contextualized beyond ...
- 5,830
6
votes
Accepted
Ontological Database of Objects
...but extracting the hierarchical information is non-trivial.
DBpedia T-Box dump is available to download as a separate file from this
page.
Wikidata classes and properties dumps are available to ...
- 2,975
6
votes
designing a vocabulary / ontology where classes have fixed constraints
Based on my research into this topic there appears to be two reasonable solutions. Perhaps one solution is more reasonable then the other.
One key is to recognize that constraints exist as a concept ...
- 201
4
votes
Accepted
5-star Open Data rating scheme, are there URIs for the ratings?
I'm not sure I agree that you need to have any URI to demonstrate how open a set of data is. Either the data is open and shareable or it is not, the openness of the data is described by the openness ...
- 566
3
votes
Wikidata get property of property
You're trying to access qualifiers, that is statements on statements, all the doc you need is here: https://www.wikidata.org/wiki/Wikidata:SPARQL_query_service/queries#Working_with_qualifiers
- 276
3
votes
Accepted
Are there any dataset for psychology
The Thesaurus of Psychological Index Terms, published by one of your employer's (?) customers, is known now as Psychology Ontology.
This ontology is not even a taxonomy, but rather a flat list of ...
- 2,975
2
votes
Where can I find an ontology for “project”?
A list of ontologies used in Linked Open Data using project can be found here https://lov.linkeddata.es/dataset/lov/terms?q=project
- 21
2
votes
Are there relationships between Knowledge Management and Ontologies?
There are a lot of different definitions of "ontology" out there. In my opinion this here is highly relevant in practice:
An ontology is a formal, explicit specification of a shared ...
- 488
2
votes
API to use Klink-2 Computer Science Ontology (CSO)
https://gist.github.com/VladimirAlexiev/fafdcb258d067cfed272664d6ae5d982 describes 6 datasets of Science Classification. Will keep it up to date as we progress.
One of them is CSO, which is now ...
- 296
2
votes
Accepted
API to use Klink-2 Computer Science Ontology (CSO)
It is unlikely that the entire Klink-2 Computer Science Ontology is openly available online.
The authors decide to monetize their research creating Rexplore.
It seems that the generated CSO ontology ...
- 2,975
2
votes
Accepted
Soccer league and team hierarchical metadata
Schema.org has some decent categories, split between "Sports Organization" and "Sports Team". Also useful is "Sports Vocabulary" (PDF).
Another Q/A here, as a reference: Schema.org - Correct way to ...
- 17.7k
2
votes
Accepted
How to build a concept hierarchy using LOD?
Possible answers were listed in your previous questions.
Perhaps some upper ontologies contain what you need.
Another possible source is Wikidata. For example, this is SVM's page on Wikidata. As you ...
- 2,975
2
votes
How to identify general terms using LOD?
There is no global "LOD hierarhy" of terms. There are various ontologies and knowledge bases, and each has its own idea of the world.
I'd use Wikidata items for the the terms that you've mentioned. ...
- 296
2
votes
Meta collection or database of structured vocabularies
If you're looking for ontologies:
https://archivo.dbpedia.org/
https://lov.linkeddata.es/
But there's maybe 5k ontologies, how do you hope to overview them and learn about them? You should start ...
- 296
2
votes
Accepted
What is the hypernym field in DBpedia?
<http://purl.org/linguistics/gold/hypernym> is a property from the GOLD linguistic ontology.
See http://linguistics-ontology.org/gold/hypernym.
- 2,975
1
vote
Public RDF Ontology for Football (soccer) or Tennis?
There is dbo:FootballMatch, or dbo:SportsEvent in general, and also dbo:SoccerTournament and dbo:TennisTournament. There is no dbo:SoccerMatch or dbo:TennisMatch, but you can link individual matches ...
- 111
1
vote
Accepted
Does it make sense to restrict the meaning of an external entity for our purposes?
This is what rdfs:subClassOf/rdfs:subPropertyOf is for. So yes, recreate these classes in your own namespace, narrowing the meaning.
If you can express the restriction in terms of an owl:...
- 246
1
vote
Ontology for theme of a text
For a straight theme, use <doc> dc:subject "foo"
To add confidence, you can use RDF*:
<< <doc> dc:subject "foo" >> my:confidence 0.962
But maybe RDF* is ...
- 296
1
vote
How to know which are required and recommended linked data properties to use from schema.org
Are these required and recommended properties only a thing which is understandable for the Google search algorithms to work well?
Yes. Follow additional guidelines in the documentation for your ...
- 2,975
1
vote
Is there an open standard for recording pieces of media?
https://www.w3.org/annotation/ is what you need (http://www.w3.org/TR/annotation-model/, http://www.w3.org/TR/annotation-vocab/).
This can be used for bookmarking or any other pointer or a comment on ...
- 296
1
vote
What would be the best ontology evaluation tool to use to analyse and evaluate the Computer Science Ontology (CSO)?
Well yeah CSO is not an ontology but a thesaurus.
Here's an idea: compare it to Microsoft Academic Graph's "Fields of Science".
Also, you need to include some actual papers in your study, ...
- 296
1
vote
Industries which maintain their own versions of common data?
Many industries.
The word missing from your question is "Ontology", and in particular "Industrial Ontology", or even more specific "Financial Industry Business Ontology". I think with that ...
- 17.7k
1
vote
Ontologies on the notarial domain
Do you mean charters? See this search
https://www.google.com/search?q=chartex+charter+annotation
- 296
1
vote
Dataset of Luna and Emperor Moths
The Encyclopedia of Life includes a database called TraitBank that includes some of these quantitative traits. For example, the entry for Luna Moth has a wingspan entry but unfortunately no mass. EOL ...
- 161
1
vote
Dataset of Luna and Emperor Moths
As you are looking for open data you may not get all that you desire and this species of moth appears to be found only in the USA, so you should be looking for websites recording species in the USA.
...
- 411
1
vote
Accepted
How to extract DBpedia infomation
Here below I'm using examples from comments to your previous question.
Linked Data Fragments
For simple queries, you could use Linked Data Fragments:
Query 1
Query 2
Add Accept: application/json ...
- 2,975
1
vote
Accepted
YAGO entity details
YAGO Demo page lists two possible ways:
Explore YAGO with our graph browser (YAGO3)
Explore YAGO with our ontology browser (YAGO2)
You can find what you need using query builder.
There also ...
- 2,975
1
vote
API to use Klink-2 Computer Science Ontology (CSO)
The Computer Science Ontology (CSO) is freely available at http://cso.kmi.open.ac.uk/ since 2018, and it can be downloaded in a variety of formats. You can also subscribe to the site and give your ...
1
vote
Which RDF predicates to use to annotate: fileX "has hash" 01ABCF "of type" sha256 "downloaded from site" http://url/to/page?
Use Wikipedia urls to identify the hash type.
(That's 5 star out of the box)
For your other questions use Linked Open Vocabularies.
If that fails, use your own URLs (5 star please) and if you later ...
- 488
1
vote
5-star Open Data rating scheme, are there URIs for the ratings?
Short answer
You should create these URIs yourself, as well as mainteiners of all other DCAT catalogues.
Long answer
Look at Data Quality Vocabulary, which is based on DCAT. Consider the following ...
- 2,975
Only top scored, non community-wiki answers of a minimum length are eligible