Resource Description Framework (RDF) is a language for representing information on the Internet . RDF files are models or data , also known as metadata, a technology endorsed and recommended by the W3C since February 1999, with the main objectives of creating a simple data model with semantics , using a URI-based vocabulary and an XML-based syntax, and supporting the use of XML.

The W3C's RDF (Resource Description Framework) specification

The RDF 1.1 specification consists of a set of W3C recommendations and working group notes, published in 2014. This set also includes an RDF Primer . See also the writings of Tim Berners-Lee web design issues , including metadata architecture. Other technologies, such as OWL or SKOS , build upon RDF and provide a language for defining ontologies that allow for richer data integration and interoperability between descriptive communities.

Several textbooks have been published in RDF and on the Semantic in general. Please see a page listing some of them, as maintained by the community. This list also includes references to conference proceedings and collections of articles that may be of general interest.

RDF, Knowledge Graph and Semantic Web

knowledge graphs are typically searched using triple pattern queries triples . The RDF standard is one of the most important tools of the Semantic Web, and its use is expanding as more professionals from various fields of knowledge come into contact with Machine Learning Artificial Intelligence , and Bots, and need tools such as controlled vocabularies, taxonomies, and ontologies (in addition to Semantic Web tools) to enhance their work.

In the article "Effective searching of RDF knowledge graphs" by Hiba Arnaout and Shady Elbassuoni, we read:

Recently, Linked Data has grown from an academic endeavor into one that has been adopted by various governments and industry stakeholders, in domains such as business and finance, geography, governance, media, digital libraries, life sciences, as well as general-purpose and user-generated content datasets.

All this data is typically represented as sets of RDF (Resource Description Framework) 2 triples. An RDF triple is a triple with three fields: a subject, a predicate, and an object, where subjects and predicates are URIs and objects are URIs or literals.

Alternatively, an RDF dataset can also be viewed as a labeled graph, which we refer to as an RDF knowledge graph. In an RDF knowledge graph, the node labels are URIs representing features or literals, and the edge labels are URIs representing predicates.