2. GRDDL: extract RDF from X(HT)ML
GRDDL is a mechanism to extract RDF from XML and HTML.
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GRDDL is a mechanism to extract RDF from XML and HTML.
In this fourth part, we're going to see the principles behind Linked Data. What we're going to do is to change slightly how we
Validating and translating RDF data The W3C RDF validation service checks the validity of RDF statements in the RDF/XML syntax and, in the case where these statements are valid, it displays
This third part presents the SPARQL (pronounced sparkle) Query Language that enables users to query RDF triple stores. The SPARQL query language enables us to access data
In the fifth part, we will see several query forms. Until now, we have seen the select where SPARQL query form but there are
The BBC Web site uses linked (open) data The Wildlife documentary catalog on the Web site of BBC The Web site of BBC is structured and augmented with both internal and public linked data. In
This sequence will introduce the principles of the RDF model. We will see that it is a triple model and a graph model. RDF stands for
We saw in the previous sequence the principles of the RDF model by using an abstract syntax. This sequence will present you the
This sequence is about the specificities of the RDF model related to typing literal values and resources in an RDF graph and indicating the
This sequence is about the specificities of the RDF model for representing groups. The type Bag is predefined in the RDF model to represent
This sequence explain how to name graphs in the RDF model and what is the utility of it. In many applications it is very useful to be
This sequence will introduce you to the RDF Schema, the standard to represent vocabularies to be used in RDF descriptions. In the