@feup-infolab/ontologies-database
v0.0.8
Published
A Simple ontology database built from a list of ontologies, with auto-download abilities
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An ontology repository for your OpenLink Virtuoso Instances
We all know how hard it is to find ontologies on the web to load into our triple store as separate graphs.
The Linked Open Vocabularies website helps a lot, but their dumps are in .nq
format (n-Quads) and you will struggle quite a lot to try to translate them into .n3
or any other format that Virtuoso accepts.
ontologies-database
is intended as
- A repository of ontologies on GitHub, in
.rdf
or.owl
for easy loading into Virtuoso - A download script that, given a list of ontology URIs in a
.txt
file, will attempt to downlod all those ontologies - A script to load those ontologies into separate graphs in a Virtuoso Instance running on
localhost
, via Virtuoso'sisql
utility.
Quickstart guide
This script is intended as a way to automatically fetch ontologies and load them into an OpenLink Virtuoso instance.
First, clone the repo:
git clone https://github.com/feup-infolab/ontologies-database.git
cd ontologies-database
Then, run the loading script:
chmod +x ./load_ontologies_into_virtuoso.sh
./load_ontologies_into_virtuoso.sh ontologies_list.txt
Your Virtuoso instance will then be loaded with all the ontologies in the downloaded/
folder, each in its own graph.
Reloading the database
Ontologies can evolve, so we will periodically run the script and update this repository. If you want to refresh the ontologies in the downloaded/
folder by yourself:
Place the updated list of ontologies in the
ontologies_list.txt
fileInstall nvm
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.6/install.sh | bash
Install NodeJS 8.9.0
nvm install 8.9.0
Activate NodeJS 8.9.0
nvm use 8.9.0
Run the updating script. This will attempt to re-download all ontologies in the list, if they are in
.owl
or.rdf
format.npm run
How we built the ontologies_map.txt file
The list of ontology URIs in ontologies_list.txt
was produced by:
Downloading the LOV dump (in
.n3
) from here.Loading the file into Virtuoso via the Quad Store upload function (ironic name, as it support uploading nQuads, only triples... Just call it Triple Store upload, no? But I digress...)
Running the following query in the Conductor:
WITH <http://localhost:8890/DAV>
SELECT ?s
WHERE
{
?s rdf:type <http://purl.org/vocommons/voaf#Vocabulary>
}