Embedded RDF

Embedded RDF (eRDF) is a syntax for writing HTML in such a way that the information in the HTML document can be extracted (with an eRDF parser or XSLT style sheet) into Resource Description Framework (RDF). This can be of great use for searching within data. It was invented by Ian Davis in 2005, and partly inspired by microformats,[1] a simplified approach to semantically annotate data in websites. This specification is obsolete, superseded by RDFa, Microdata, and JSON-LD.

## See also

* RDFa, W3C's approach at embedding RDF within HTML
* JSON-LD, W3C's approach at embedding RDF within HTML in the form of JSON snippets
* GRDDL, a way to extract (annotated) data out of XHTML and XML documents and transform it into an RDF graph
* Microdata (HTML), another approach at embedding semantics in HTML using additional attributes.
* microformats, the most common way of embedding additional semantics in HTML.

## References

1. ↑ Email stating microdata inspiration

## External links

* Project at GitHub
* Resource Description Framework Wiki at W3.org

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Semantic Web

Background|

* Databases
* Hypertext
* Internet
* Ontologies
* Semantics
* Semantic networks
* World Wide Web

Sub-topics|

* Dataspaces
* Hyperdata
* Linked data
* Rule-based systems

Applications|

* Semantic analytics
* Semantic broker
* Semantic computing
* Semantic mapper
* Semantic matching
* Semantic publishing
* Semantic reasoner
* Semantic search
* Semantic service-oriented architecture
* Semantic wiki

Related topics|

* Collective intelligence
* Description logic
* Folksonomy
* Geotagging
* Information architecture
* Knowledge extraction
* Knowledge management
* Knowledge representation and reasoning
* Library 2.0
* Digital library
* Digital humanities
* Metadata
* References
* Topic map
* Web 2.0
* Web engineering
* Web Science Trust

Standards|

| Syntax and supporting technologies|

* HTTP
* IRI
* URI
* RDF
* triples
* RDF/XML
* JSON-LD
* Turtle
* TriG
* Notation3
* N-Triples
* TriX (no W3C standard)
* RRID
* SPARQL
* XML
* Semantic HTML

|

Schemas, ontologies and rules|

* Common Logic
* OWL
* RDFS
* Rule Interchange Format
* Semantic Web Rule Language
* ALPS
* SHACL

Semantic annotation|

* eRDF
* GRDDL
* Microdata
* Microformats
* RDFa
* SAWSDL
* Facebook Platform

Common vocabularies|

* DOAP
* Dublin Core
* FOAF
* Schema.org
* SIOC
* SKOS

Microformat vocabularies|

* hAtom
* hCalendar
* hCard
* hProduct
* hRecipe
* hResume
* hReview

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