With the Resource Description Framework (RDF) you can represent Linked Data as subject-predicate-object triples. But what if you have to represent additional context of those triples? In this Blog post I will briefly introduce the advanced data management feature “named graphs” with two examples: different data source named graphs in the BELTRANS project and different story-contexts for Digital Humanities research. Furthermore I will graphically illustrate the different ways you can query named graphs with SPARQL!
In June 2023 I attended a workshop in Hasselt, Belgium, organized by a research network on Knowledge Graphs and Data Integration. Linked Data-based systems and declarative SPARQL queries somehow magically do all the work efficiently, but how? For many people, presentations about using Linked Data and SPARQL already seem very technical. But this event went further, it covered the fundamental algorithms that power the Linked Data systems! In this post I try my best to briefly summarize some of the talks and highlight the added value of those fundamental and often behind-the-scenes work.