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
Going back in history, back in 1945, Vannevar Bush wrote an article entitled "As we may think". In this article, he
We now consider one of the first evolutions of the web, to separate the presentation and the content. In 1996, CSS, standing for
In this third part, we will see another evolution of the Web, or more precisely, an evolution of the way we use the Web. We will
Let us now conclude this first part with an overview of the stack of standards and languages that are used to publish data on the
In this second part we will focus on RDF. RDF is the first brick of the Semantic Web Standards Stack and comprises both a model and several serialization syntaxes, to publish data about anything on
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