5 votes
Accepted

Extract labels from Wikidata entity

You could do it with SPARQL: SELECT ?wdLabel ?ooLabel WHERE { VALUES (?s) {(wd:Q42)} ?s ?wdt ?o . ?wd wikibase:directClaim ?wdt . ?wd rdfs:label ?wdLabel . OPTIONAL { ?o rdfs:label ?...
Stanislav Kralin's user avatar
5 votes

What Linked Data serialization format to choose for our (now CSV) open data?

In order to make it into Linked Data and be easily reusable by as many mashups/apps/etc as possible.. It seems you are talking about RDF dumps, but there are other ways to provide access to RDF data, ...
Stanislav Kralin'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

Linked Open Data Statistics

LOD Cloud has some data/statistics from its beginnings, leading up to 2014, in a variety of formats: LOD Cloud History Related information: LOD Cloud explains how they mined the data for their sets, ...
albert's user avatar
  • 11.9k
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

What Linked Data serialization format to choose for our (now CSV) open data?

I would suggest just uploading it to https://data.world (disclaimer: I work there, but it's free). It's easy for other users to get it in a few different ways (whether it's a download, API, or a ...
scuttlemonkey'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

What examples are there of Linked Data/RDF being used for open data applications?

The Environment Agency in the UK produced a bathing water quality application for end users that is built on linked open data. http://environment.data.gov.uk/bwq/profiles/
MPendleton's user avatar
2 votes

Any uses of JSON-LD?

Current statistics: as of March 2020, JSON-LD is used by ~30% of all the websites. https://w3techs.com/technologies/details/da-jsonld/all/all (compare https://w3techs.com/technologies/...
Stanislav Kralin's user avatar
2 votes

Any uses of JSON-LD?

Our team is working on the idea of the Semantic Web based on JSON-LD. Since you are interested in this format, you may be interested in learning about the project as well. WRIO Internet OS — All You ...
Alexey Anshakov's user avatar
2 votes

GIThub to share a set of SPARQL queries

You should check out grlc grlc, the git repository linked data API constructor, automatically builds Web APIs using SPARQL queries stored in git repositories. Basically you use an github ...
jonas's user avatar
  • 21
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

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
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
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
Accepted

How do I extract certain articles from Arabic Wiki Dumps?

Here's the main page for Wiki{p,m}edia dumps: https://dumps.wikimedia.org/ and the index of dumps: https://dumps.wikimedia.org/backup-index.html and for Arabic Wikipedia you'd select "ar" and "...
philshem's user avatar
  • 17.6k
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
1 vote
Accepted

Linking data and making it available as linked data

If the source doesn’t provide a URI which represents the work/concept (in addition to the URI that represents the actual image file, and separate from a webpage about the photograph), I think it makes ...
Stefan - brox IT-Solutions'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

How to get the path details between two nodes in DBpedia in SPARQL

Your question shows <> which is not a valid property or wildcard. You cannot use property variables (wildcards) in property paths. So you need to understand the structure of how dct:subject and ...
Vladimir Alexiev'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
Accepted

Vocabulary alignment in LDflex

The long-term answer here is reasoning based on ontologies. A JSON-LD context alone indeed won't get us there. However, the ontological equivalence between foaf:name and schema:name can allow the ...
Ruben Verborgh's user avatar
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

How to link a new dataset to an existing dataset?

First model the relationships from the geographic area and probably expand it more: Dallas > located_in > Texas Dallas > country > USA Dallas > located_in > USA Texas > ...
marfi's user avatar
  • 583
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
1 vote

Linked Geospatial Data in WFS

You can use HTTP-URI values from controlled vocabularies in the attributes of your WMS datasets, as properties in your WFS feature types and WCS coverages. You can additionally add links in your ...
nmtoken's user avatar
  • 566
1 vote

Displaying Trust and Data Provenance?

My company, Bitscover by name, is developing a trust rating system for the data that we collect from private sector sources. We don't yet feel confident enough in our "navigation" of government data ...
Tom Au's user avatar
  • 541

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