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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 ...
Patrick Hoefler's user avatar
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 ...
Stanislav Kralin's user avatar
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 ...
James Hudson's user avatar
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 ...
nmtoken's user avatar
  • 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
maxlath's user avatar
  • 266
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 ...
Stanislav Kralin's user avatar
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
Ghislain AT's user avatar
2 votes

Is there a vocabulary for linking weather data?

Meteo is out there: http://purl.org/ns/meteo. I have no idea how well-used it is.
Charles's user avatar
  • 161
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 ...
Grimaldi's user avatar
  • 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 ...
Vladimir Alexiev's user avatar
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 ...
Stanislav Kralin's user avatar
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 ...
philshem's user avatar
  • 17.6k
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 ...
Stanislav Kralin's user avatar
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. ...
Vladimir Alexiev's user avatar
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 ...
Vladimir Alexiev's user avatar
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.
Stanislav Kralin's user avatar
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 ...
Vladimir Alexiev's user avatar
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 ...
Stanislav Kralin's user avatar
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 ...
Vladimir Alexiev's user avatar
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, ...
Vladimir Alexiev's user avatar
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 ...
philshem's user avatar
  • 17.6k
1 vote

Ontologies on the notarial domain

Do you mean charters? See this search https://www.google.com/search?q=chartex+charter+annotation
Vladimir Alexiev's user avatar
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 ...
Chris Mungall's user avatar
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. ...
Hornbydd's user avatar
  • 409
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 ...
Stanislav Kralin's user avatar
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 ...
Stanislav Kralin's user avatar
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 ...
Francesco Osborne's user avatar
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 ...
Grimaldi's user avatar
  • 488
1 vote
Accepted

Modeling Stakeholder relationships in ontologies

Ok. The answer was fairly simple. What I was looking for was N-ary relations. How this can be achived is documented by the W3C: "Defining N-ary Relations on the Semantic Web"
bwright's user avatar
  • 121
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 ...
Stanislav Kralin's user avatar

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