A RDF knowledge graph for food health claims.

The easiest way to explore the knowledge graph is to use the various API calls at http://grlc.io/api-git/MaastrichtU-IDS/food-claims-kg

The SPARQL endpoint is accessible at https://graphdb.dumontierlab.com/repositories/FoodHealthClaimsKG

Queries from the grlc API can be checked and changed in the .rq files.

Variables starting with an underscore, e.g. _claimlabel, are asked to the user as parameter of the generated API call.

Scripts run automatically with GitHub Actions at every push to the master branch.

Clone the repository:

git clone https://github.com/MaastrichtU-IDS/food-claims-kg.git
cd food-claims-kg

Install requirements:

pip3 install -r requirements.txt

Download the data:

Link to Google Sheet

mkdir -p data/output
wget -O data/food-claims-kg.xlsx "https://docs.google.com/spreadsheets/d/1RWZ6AlGB8m7PO5kjsbbbeI4ETLwvKLOvkrzOpl8zAM8/export?format=xlsx&id=1RWZ6AlGB8m7PO5kjsbbbeI4ETLwvKLOvkrzOpl8zAM8"

Define API key to query UMLS:

export UMLS_APIKEY=00000000000000

Run the conversion script:

python3 src/convert_to_rdf.py

Create metadata (HCLS statistics)

d2s metadata analyze https://graphdb.dumontierlab.com/repositories/FoodHealthClaimsKG -o metadata.ttl 

API powered by grlc.io 🧅

IRI variable with defaults value (not working for our repo):

• https://github.com/albertmeronyo/lodapi/blob/master/dbpedia_test.rq
• API: http://grlc.io/api-git/albertmeronyo/lodapi#/dbpedia/get_dbpedia_test

String variable:

• https://github.com/CLARIAH/wp4-queries-hisco/blob/master/get-hisco-hiscam.rq
• API: http://grlc.io/api-git/CLARIAH/wp4-queries-hisco#/hisco/get_get_hisco_hiscam

Enumerate:

• https://github.com/CLARIAH/grlc-queries/blob/master/enumerate.rq
• API: http://grlc.io/api-git/CLARIAH/grlc-queries/#/default/get_enumerate