Get the data
The dataset is distributed from https://figshare.com/articles/AIFB_DataSet/745364.
The dataset was used in Kernel Methods for Mining Instance Data in Ontologies. Find and read the part of the dataset on page 10.
Setup a Python environment with rdflib installed and load the AIFB file and count the number of times the "affiliation" property is used:
from rdflib import Graph, URIRef g = Graph() g.load('aifbfixed_complete.n3', format='n3') len(list(g.triples((None, URIRef("http://swrc.ontoware.org/ontology#affiliation"), None))))
The URI for the affiliations can be obtained with:
affiliations = g.triples((None, URIRef("http://swrc.ontoware.org/ontology#affiliation"), None)) groups = set(affiliation for affiliation in affiliations)
How many different affiliations are there?
Find the name of the affiliations via "http://swrc.ontoware.org/ontology#name".