Course: Introduction to Linked Data and the Semantic Web

We hope you’ve enjoyed this course! Are you interested in learning more about Linked Data, SPARQL, or the Semantic Web? Here we discuss a number of study and training opportunities. …

In step 1.15 you watched Dr Barry Norton describe some real world applications that have Linked Data as their underlying technology. In this step, we introduce you to some more …

Based at the University of Southampton, the Administrative Data Research Centre for England (ADRC-E) forms part of the Administrative Data Research Network (ADRN) which helps researchers gain access to de-identified …

To really get familiar with SPARQL, you should practise what you’ve learned so far. It’s not too late to get started with running SPARQL queries on the MusicBrainz dataset … …

We hope that you have enjoyed your journey with us! We would like to remind you, that whilst we will not be providing facilitation in the comments and discussions after …

Reasoning enhances the information contained in a dataset by including results obtained by inference from the triples already present. As a simple example, suppose that the dataset includes the following …

RDF Schema introduces a very limited range of logical terms based mostly on the concept of class, or rdfs:Class, a concept absent from RDF. It is possible to state directly …

Like CONSTRUCT, DESCRIBE delivers as output an RDF graph – i.e., a set of RDF triples. It differs from CONSTRUCT in that these triples are not constructed according to a …

We have already discussed a SELECT query that returns aggregate data by summing the durations of tracks in each album. You may recall that such a query uses the AS …

If you want to construct RDF triples using a variable that is derived from retrieved data, e.g., through an arithmetical operation, you can add a BIND statement to the WHERE …

When building new RDF triples with CONSTRUCT, you can use the operators described in Step 2.10 (Ordering query results) in order to organise and delimit the variable bindings retrieved from …

Suppose that for some reason you want to construct triples for albums made either by the Beatles or by the Smashing Pumpkins (or both). Including both of these constraints in …

In the examples we have seen so far, variable bindings must be retrieved for all patterns listed after WHERE. This means that if we retrieve several facts about an album …

This step introduces one more operation to use with SELECT queries, before we move on to CONSTRUCT queries. If we want to report the total duration of an album, we …

In this step, you will learn how CONSTRUCT queries return new RDF graphs. When building an application like the music portal, you might need to retrieve some information from a …