Last month I promised that I would dig further into the Wikidata data model, its mapping to RDF, and how we can take advantage of this with SPARQL queries. I had been trying to understand the structure of the data based on the RDF classes and properties I saw and the documentation that I could find, and some of the vocabulary discussing these issues confused me–for example, RDF is about describing resources, but I was seeing lots of references to entities, which can mean slightly different…

I’ve written so often about DBpedia here that a few times I considered writing a book about it. As I saw Wikidata get bigger and bigger, I kept postponing the day when I would dig in and learn more about this Wikipedia sibling project. I’ve finally done this, starting with a few basic steps and one extra fun one:

Since I wrote “Experience in SPARQL a plus” about SPARQL appearances in job postings almost three years ago, I still find myself pointing people to it to show them that SPARQL is not some academic theoretical thing but a popular tool in production use at well-known companies.