wiktionary RDFRDF may refer to In technology & science Resource Description Framework , an official W3C Recommendation for Semantic Web data models RDF Schema , the knowledge representation language used in this framework RDF feed RDF query language Radial distribution function , the probability of finding an atom at a certain distance away from another atom Radio direction finder Random dopant fluctuation Refuse derived fuel Reduced dimensions form Reduced Dimensions Form , a canonical mechanism for solving two state trajectories Military Reserve Defence Forces , Ireland Rwandan Defence Forces United States Rapid Deployment Forces River Defense Fleet , a defective Confederate States force in the American Civil War Other uses RDF Media , a television production company Radical Dance Faction , a band from the United Kingdom Reality distortion field , a term coined to describe Steve Jobs charisma Richard Dawkins Foundation for Reason and Science , a non profit organization Robotech Defense Force or Robotech Armed Forces, a fictional military faction in the Robotech universe disambiguation cs RDF de RDF es RDF fa RDF fr RDF ko RDF it RDF nl RDF ja RDF pl RDF sk RDF sv RDF ... more details
RDF XML is a syntax, ref name syntaxspec http www.w3.org TR rdf syntax grammar RDF XML Syntax Specification , W3C ref defined by the W3C , to express i.e. Serialization serialize an Resource Description Framework RDF graph as an XML document. According to the W3C, RDF XML is the normative syntax for writing RDF . ref name primer http www.w3.org TR rdf primer RDF Primer , W3C ref RDF XML is seen by some as the machine readable form of RDF with Notation 3 as a more human readable form. Joshua Tauberer, for instance, said that RDF XML may have a more intuitive feel but tends to obscure the underlying graph . ref Joshua Tauberer, http www.xml.com pub a 2001 01 24 rdf.html What is RDF? , O Reilly XML.com, July 26, 2006 ref References Reflist See also Resource Description Framework External links http www.w3.org TR rdf syntax grammar RDF XML Syntax Specification http www.w3.org TR rdf syntax RDF Primer http tools.ietf.org html rfc3870 RFC 3870 application rdf xml Media Type Registration Semantic Web Category RDF Category Semantic Web Category XML based standards comp sci stub ... more details
POV title date October 2011 RDF feed refers to data feed in Resource Description Framework RDF and maybe a little bit of Web Ontology Language OWL format. RDF is an emerging semantic web standard language ideal for describing real world objects, and the resulted RDF data resources can be consumed by computers i.e. machine readable . Theoretically, every web site can create RDF resources for all the information on the web site and make them available as RDF feeds. Any other web sites, if interested, can then acquire the data from the RDF feeds and integrate them with other data obtained in the same fashion. This so called web of data or semantic web will open doors to a great number of new services that are not possible today. Of course, this sounds just like a dream. But, lots of people are working hard to make it a reality. W3C is leading the way followed by a large number of volunteers. For example, web2express.org launched a free online data feed service in October 2007 for anyone to create RDF feeds and RDF data resources. Examples http web.resource.org rss 1.0 spec RSS 1.0 feeds for news or blogs. http web2express.org ufeed RDF feeds for products, news, events, jobs, and studies. Free or open source tools services http www.w3.org RDF Validator W3C RDF validation http www.web2express.org ufeed Ufeed A free online tool for publishing data resources and data feeds in RDF, including product information, news, events, jobs and studies. References http www.w3.org 2001 sw W3C W3C is developing semantic web infrastructures and standards through its many semantic web activities. http www.w3.org TR rdf primer Resource Description Framework RDF a language for representing information about resources in the World Wide Web. http www.w3.org TR owl ref Web Ontology Language OWL OWL facilitates greater machine interoperability of Web content. See also Data feed Web Feed RSS Feed Category Web syndication formats Category RDF Category XML based standards Category Computer file formats ... more details
primary sources date September 2011 Infobox W3C Standard title RDF Schema status Published year started 1998 editors Dan Brickley , Ramanathan V. Guha base standards Resource Description Framework RDF ... TR rdf schema RDF Schema RDF Schema variously abbreviated as RDFS , RDF S , RDF S , or RDF S is a set of classes with certain properties using the Resource Description Framework RDF extensible knowledge ... science ontologies , otherwise called RDF vocabularies, intended to structure RDF resource Web resources ... version ref http www.w3.org TR 1998 WD rdf schema 19980409 RDFS first version ref ref cite ... Wide Web Consortium W3C in April 1998, and the final ref http www.w3.org TR rdf schema Final W3C ... Framework RDF Vocabulary vocabulary of RDF . Classes rdfs Resource is the class of everything. All things described by RDF are resources. rdfs Class declares a resource as a class philosophy ... to the class tt foaf Person tt using the tt rdf type tt Properties property , such as in the following formal expression of the natural language sentence John is a Person . ex John rdf type foaf Person ... classes described by the RDF and RDFS specifications are rdfs Literal Literal computer science literal values such as strings and integers. Property values such as textual strings are examples of RDF ... Literal. rdf XMLLiteral the class of XML literal values. rdf XMLLiteral is an instance of rdfs Datatype and thus a subclass of rdfs Literal . rdf Property the class of properties. Properties Properties are instances of the class rdf Property and describe a relation between subject resources and object ... Framework Statement reification and context RDF reification . rdfs domain of an rdf predicate ... range of an rdf predicate declares the class or datatype of the object in a triple whose second component ... ex employer ex CompanyX rdf type is a property used to state that a resource is an instance of a class .... rdfs subPropertyOf is an instance of rdf Property that is used to state that all resources ... more details
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 web development stylesheet into Resource Description Framework . This can be of great use for searching within data. It was invented by Ian Davis software developer Ian Davis in 2005, and partly inspired by microformats , a simplified approach to semantically annotate data in websites. ref http iandavis.com Ian Davis ref Syntax ... Example ... See also RDFa , W3C s approach at embedding RDF within HTML 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 Reflist External links http research.talis.com 2005 erdf wiki Main RdfInHtml eRDF http egeneva.ch w3c RDF ResourceDescriptionFramework W3C eRDF Semantic Web DEFAULTSORT Embedded Rdf Category XML based standards Category Metadata publishing Category Semantic Web Markup languages stub ... more details
Infobox VG title RDF 1985 image Image RDF 1985 box front.jpg 256px Box art caption Official box art of RDF 1985 developer Roger Keating publisher Strategic Simulations Inc. released vgrelease NA 1983 genre Computer wargame Wargame modes Single player video game Single player br multiplayer video game Multiplayer small up to two players small platforms Apple II br Commodore 64 RDF 1985 is a computer wargame published in 1983 by Strategic Simulations, Inc. Developed by Roger Keating it was the second in the When Superpowers Collide series. Summary The game simulates a battle between the Rapid Deployment Joint Task Force American Rapid Deployment Force and Soviet forces for control of the Saudi Arabian oil fields. The player may choose to play either the American or Soviet forces, and can play in turns against another human component or against the computer. See also Germany 1985 Baltic 1985 Corridor to Berlin Norway 1985 External links MobyGames id rdf 1985 http www.c64sets.com rdf 1985.html Images of RDF 1985 box and manual from C64Sets.com Category 1983 video games Category Apple II games Category Cold War video games Category Commodore 64 games Category Video games set in Asia strategy videogame stub ... more details
No footnotes date August 2009 Context date August 2009 Unreferenced date August 2009 The RDF PowerStation is a peripheral thermal recovery plant, which is based on renewable energy especially on Refuse derived fuel RDF . Concept File Processdiagram RDFPowerstation.jpg thumb Process diagram of the RDF Powerstation File Processdiagram RDFPowerstation Fluegas.jpg thumb Process diagram of the fluegas purification unit The RDF Powerstation is directly integrated in a building like a business centre and is used as a cogeneration or trigeneration plant. Due to that the incineration unit and all additional components, which are necessary for the operation of the plant and the utilization of the energy, are located in the consumers area. So the energy is produced and used at the same place. The technical realization of this concept is based on the configuration of the process diagram. Before the crude materials e.g. municipal or commercial waste are introduced into the incineration unit, these resources are mechanically treated at an external station. The treatment intensity is significantly linked to the quality and composition of the primary material. So the treatment process can be very different from an ordinary crushing and a rough sortation to a multistep milling process with various product streams and a finishing briquetting. The final product of this step the Refuse derived fuel is used in the RDF Powerstation . The combustion unit is equipped with a water cooled reciprocating grate, a post combustion chamber, where the selective non catalytic reduction of the nitrogen oxides is included and a steam boiler with the heat exchangers. The main part of the heat energy, which is captured in the live steam, is used for the electricity production. Another portion is applied for a heating grid or an absorption refrigerator. Following the steam boiler the flue gas enters the 4 stage dry scrubber. There the pollutants of the flue gas are extracted by different additives, which ... more details
Redland is a set of free software libraries written in C programming language C that provide support for the Resource Description Framework RDF , created by Dave Beckett a former resident of Redland, Bristol . The packages that form Redland are Redland RDF Application Framework providing the C RDF API Raptor RDF Parser Toolkit for parsing and serializing RDF syntaxes RDF XML, N Triples , Turtle syntax Turtle , RSS file format RSS tag soup , Atom standard Atom Rasqal RDF Query Library for executing RDF queries with RDQL and SPARQL Redland Language binding Language Bindings for APIs to Redland in C Sharp programming language C , Java programming language Java , Objective C , Perl , PHP , Python programming language Python , Ruby programming language Ruby and Tcl Redland is a mature set of libraries, in development since 2000 and closely conformant to the relevant World Wide Web Consortium W3C specifications. See also Semantic Web External links http librdf.org http md.devc.at internet semantic web rdf redland rdf TM hub http kill.devc.at internet semantic web rdf redland tutorial Category RDF data access Category RDF Category C libraries Category Python libraries Category Free software programmed in Python ... more details
RDF Inference Language RIL is an open format designed to express expert systems rules and queries that operate on RDF models. RIL uses an XML vocabulary to define rules for a RIL processor to operate on an RDF model. Elements of RIL have been integrated into Versa query language Versa . External links http xml.coverpages.org RIL 20010510.html RIL draft , seen 2007 07 09 Compu lang stub Category Semantic Web Category RDF ... more details
An RDF query language is a computer language , specifically a query language for database s, able to retrieve and manipulate data stored in Resource Description Framework format. SPARQL is emerging as the de facto RDF query language, and is a W3C Recommendation . ref cite web url http www.w3.org TR rdf sparql query title SPARQL Query Language for RDF last1 Prud hommeaux first1 Eric last2 Seaborne first2 Andy date 15 January 2008 work W3C publisher World Wide Web Consortium ref Released as a Candidate Recommendation in April 2006, it returned to Working Draft status in October 2006, due to open issues. It returned to Candidate Recommendation status in June 2007. ref cite web url http www.w3.org blog SW 2007 06 15 sparql is a candidate recommendation title SPARQL is a Candidate Recommendation last Herman first Ivan date 15 June 2007 work Semantic Web Activity News publisher World Wide Web Consortium ref On 12 November 2007 the status of SPARQL changed into Proposed Recommendation. ref cite ... Language for RDF Query Results XML Format Protocol for RDF date 13 November 2007 work W3C News in 2007 ... Consortium ref Other RDF query languages DQL , XML based, queries and results expressed in DAML OIL ... XUL Template Guide Introduction template element in which to declare rules for matching data in RDF. XUL uses RDF extensively for databinding. Adenine programming language Adenine programming language written in RDF . External links http www.w3.org TandS QL QL98 pp rdfquery.html RDF Query specification http www.w3.org 2001 11 13 RDF Query Rules RDF query language survey http web.archive.org web 20080702143156 http www.aifb.uni karlsruhe.de WBS pha rdf query A Comparison of some RDF Query Languages http rdfstore.sourceforge.net 2002 06 24 rdf query RDF query use cases, including query language samples http www.w3.org TR rdf sparql query SparQL References Reflist Category RDF data access Category RDF Query languages Category Query languages ja RDF pl RDQL ... more details
Joseki is a servlet providing a web interface for performing SPARQL queries on an Resource Description Framework RDF graph. It has been developed by Hewlett Packard , and released under a license apparently equivalent ref http www.joseki.org license.html Joseki License Bot generated title ref to the MIT license . External links The http www.joseki.org Joseki homepage . References reflist Category Java platform computer stub ... more details
Language OWL , Rule Interchange Format RIF , RDFa domain Semantic Web abbreviation RDF website http www.w3.org TR rdf primer RDF Primer The Resource Description Framework RDF is a family of World ..., using a variety of syntax formats. Overview The RDF data model ref http www.w3.org TR PR rdf syntax Resource Description Framework RDF Model and Syntax Specification ref is similar to classic ... are known as triples in RDF terminology. The subject denotes the resource, and the predicate .... For example, one way to represent the notion The sky has the color blue in RDF is as the triple ... , and an Object grammar object denoting blue . RDF is an abstract model with several Serialization ... is encoded varies from format to format. ref cite web url http www.lesliesikos.com tutorials rdf syntaxes title Major RDF syntaxes. In RDF tutorial author Dr. Leslie Sikos accessdate 8 July 2011 ref This mechanism ... ref RDF s simple data model and ability to model disparate, abstract concepts has also led to its ... of RDF statements intrinsically represents a Glossary of graph theory labeled, directed multi graph . As such, an RDF based data model is more naturally suited to certain kinds of knowledge representation ..., RDF data is often persisted in RDBMS relational database or native representations also called Triplestore s, or Quad stores if context i.e. the named graph is also persisted for each RDF triple. ref http sw.deri.org 2005 02 dexa yars.pdf Optimized Index Structures for Querying RDF from the Web ... ontology language s can be built upon RDF. History There were several ancestors to the W3C s RDF ... system were also key in shaping the direction of the RDF project. The W3C published a specification of RDF s data model and XML syntax as a Recommendation in 1999. ref http www.w3.org TR 1999 REC rdf syntax 19990222 W3C 1999 specification ref Work then began on a new version that was published .... Most newcomers to RDF are unaware that the older specifications even exist. In June 2010, W3C ... more details
In Resource Description Framework RDF , a blank node also called bnode is a node in an RDF graph representing a resource for which a URI or literal is not given. The resource represented by a blank node is also called an anonymous resource . By RDF standard a blank node can only be used as subject or object in an RDF triple, although in some syntaxes like Notation 3 ref Berners Lee, T. http www.w3.org DesignIssues Notation3.html Notation3 N3 A Readable RDF syntax , World Wide Web Consortium ref it is acceptable to use a blank node as a predicate. If a blank node has a node ID not all blank nodes are labeled in all RDF serializations , it is limited in scope to a serialization of a particular RDF graph, i.e. the node p1 in the subsequent example does not represent the same node as a node named ... by the semantics declared in the FOAF software FOAF vocabulary that the class of p1 is foaf Person. RDF XML Notation In RDF XML syntax a blank node can be represented by nested elements, such as the following. foaf Person rdf about nowiki http example.org Person John nowiki foaf knows foaf Person foaf ... RDF graph, it can be identified by a rdf nodeID attribute. This identification is limited to the local ... rdf about nowiki http example.org Person John nowiki foaf knows foaf Person rdf nodeID b1 foaf knows foaf Person foaf Person rdf about nowiki http example.org Person Mary nowiki foaf knows foaf Person rdf nodeID b1 foaf knows foaf Person Classical use cases Representation of complex data A blank node ... as properties attached to the blank node. For example in the RDF VCard vocabulary one will write. rdf Description rdf about nowiki http qqqfoo.com staff corky nowiki ... vCard ADR rdf parseType Resource ... 5555 vCard Pcode vCard Country Australia vCard Country vCard ADR ... rdf Description Anonymous classes ... itself cardinality 1 owl Class rdf about nowiki http example.org ontology Person nowiki rdfs subClassOf owl Restriction owl maxCardinality 1 owl maxCardinality owl onProperty rdf resource nowiki ... more details
Unreferenced date January 2007 Orphan date February 2009 Random dopant fluctuation RDF is a form of process variation resulting from variation in the implanted impurity concentration. In MOSFET transistor s, RDF in the channel region can alter the transistor s properties, especially threshold voltage . In newer process technologies RDF has a larger effect because the total number of dopant s is fewer, and the addition or deletion of a few impurity atom s can significantly alter transistor properties. RDF is a local form of process variation, meaning that two juxtaposed transistors may have significantly different dopant concentrations. DEFAULTSORT Random Dopant Fluctuation Category Transistors Electronics stub ... more details
Infobox Software name JRDF logo screenshot caption latest release version 0.5.6.1 latest release date May 30, 2010 operating system Cross platform genre Semantic Web license BSD style license website http jrdf.sourceforge.net JRDF is an open source Resource Description Framework RDF framework for Java programming language Java . It provides an object oriented model of Resource Description Framework RDF graphs including URI s, Literals and Blank node Blank Nodes . It was initially released in 2003 from work on the TKS and Kowari triple stores later Mulgara software Mulgara in order to provide an API that could be used to bridge other API s such as Jena framework Jena and to correctly model Resource Description Framework RDF concepts ref http lists.w3.org Archives Public www rdf interest 2003Dec 0050.html JRDF Announcement ref . These API s allow Resource Description Framework RDF to be created and written using various formats such as N3 and RDF XML. It has an implementation of SPARQL although it is not complete. Resource Description Framework RDF graphs can be stored in memory or on disk through various persistence layers. In 2008, JRDF implemented a triple store across Hadoop using a technique called RDF molecules ref http www.itee.uq.edu.au eresearch papers 2008 newman et al www2008.pdf A Scale Out RDF Molecule Store for Distributed Processing of Biomedical Data ref . JRDF is similar to other frameworks such as Jena framework Jena and Sesame framework Sesame although it does not currently provide support for OWL Web Ontology Language . See also Jena framework Jena Sesame framework Sesame References See http en.wikipedia.org wiki Wikipedia Footnotes for an explanation of how to generate footnotes using the ref erences tags Reflist External links http jrdf.sourceforge.net JRDF project page Category RDF Category Semantic Web Category Triplestores ... more details
Infobox file format name JSON LD icon logo extension .jsonld mime application ld json type code uniform type magic owner genre Semantic Web semantic web container for Linked Data extended from JSON extended to standard http json ld.org spec latest JSON LD , or J ava S cript O bject N otation for L inked D ata, is a method of transporting Linked Data using JSON . It is designed to store and transfer Linked Data using the widely supported JSON serialization format. ref cite web url http json ld.org spec latest json ld syntax title JSON LD Syntax 1.0 date 2011 12 27 accessdate 2011 12 30 ref Examples This RDF model in standard XML notation source lang xml rdf RDF xmlns rdf http www.w3.org 1999 02 22 rdf syntax ns xmlns dc http purl.org dc elements 1.1 rdf Description rdf about http en.wikipedia.org wiki Tony Benn dc title Tony Benn dc title dc publisher Wikipedia dc publisher rdf Description rdf RDF source may be written in JSON LD like this pre context title http purl.org dc elements 1.1 title , publisher http purl.org dc elements 1.1 publisher , id http en.wikipedia.org wiki Tony Benn , title Tony Benn , publisher Wikipedia pre References references External links http json ld.org JSON LD.org Semantic Web Category RDF ... more details
context date June 2011 Infobox file format name Terse RDF Triple Language icon logo extension .ttl mime text turtle type code uniform type magic owner http www.dajobe.org Dave Beckett genre Semantic Web container for Resource Description Framework RDF data extended from N Triples extended to standard http www.w3.org TeamSubmission turtle Specification Turtle Terse RDF Triple Language is a serialization format for Resource Description Framework RDF graphs. A subset of Tim Berners Lee and Dan Connolly s Notation3 N3 language, it was defined by Dave Beckett, and is a superset of the minimal N Triples format. Unlike full N3, Turtle doesn t go beyond RDF s graph model. SPARQL uses a similar N3 subset to Turtle for its graph patterns, but using N3 s brace syntax for delimiting subgraphs. Turtle was accepted as a first working draft by the World Wide Web Consortium W3C RDF Working Group on 9 August 2011. ref cite web url http www.w3.org TR 2011 WD turtle 20110809 title Turtle Terse RDF Triple Language date 9 August 2011 publisher World Wide Web Consortium W3C accessdate 27 November 2011 ref Turtle is popular among Semantic Web developers as a human friendly alternative to RDF XML . A significant proportion of RDF toolkits include Turtle parsing and serializing capability. Some examples are Redland RDF Application Framework Redland , Sesame framework Sesame , Jena framework Jena and RDFLib . Example nowiki prefix rdf http www.w3.org 1999 02 22 rdf syntax ns . nowiki nowiki prefix dc http purl.org dc elements 1.1 . nowiki nowiki prefix ex http example.org stuff 1.0 . nowiki nowiki http www.w3.org TR rdf syntax grammar nowiki nowiki dc title RDF XML Syntax Specification Revised nowiki ex editor ex fullname Dave Beckett nowiki ex homePage http purl.org net dajobe nowiki . Turtle examples are also valid Notation3 . The MIME type of Turtle is code text turtle code . The character encoding ... TeamSubmission turtle Turtle Specification Semantic Web Category RDF Category Syntax de Terse RDF ... more details
owner W3C genre Semantic Web semantic web container for Resource Description Framework RDF data extended from extended to Turtle syntax Turtle standard http www.w3.org TR rdf testcases ntriples Specification ... format for Resource Description Framework RDF Resource Description Framework graphs, and a subset of the Turtle syntax Turtle Terse RDF Triple Language format. ref name RDFCore cite web url http www.w3.org 2001 sw RDFCore ntriples title N Triples work W3C RDF Core WG Internal Working Draft publisher www.w3.org accessdate 2008 02 17 ref ref name rdf testcases cite web url http www.w3.org TR rdf testcases ntriples title RDF Test Cases N Triples work W3C Recommendation 10 Feb 2004 publisher ... of the shortcuts provided by other RDF serialisations such as CURIE s and nested resources, which are provided by both RDF XML and Turtle it can be onerous to type out large amounts of data by hand, and difficult to read. Usage There is very little variation in how an RDF Graph data structure graph can be represented in N Triples. This makes it a very convenient format to provide model answers for RDF test suites. ref name rdf testcases Implementations As N Triples is a subset of Turtle and Notation ... to this RDF XML rdfRDF xmlns http xmlns.com foaf 0.1 xmlns dc http purl.org dc terms xmlns rdf http www.w3.org 1999 02 22 rdf syntax ns Document rdf about http www.w3.org 2001 sw RDFCore ntriples dc title xml lang en US N Triples dc title maker Person rdf nodeID art name Art Barstow name Person maker maker Person rdf nodeID dave name Dave Beckett name Person maker Document rdfRDF http www.w3.org 2001 sw RDFCore ntriples http www.w3.org 1999 02 22 rdf syntax ns type http xmlns.com foaf ... sw RDFCore ntriples http xmlns.com foaf 0.1 maker dave . art http www.w3.org 1999 02 22 rdf syntax ... 1999 02 22 rdf syntax ns http xmlns.com foaf 0.1 Person . dave http xmlns.com foaf 0.1 name Dave .... References Reflist External links http blog.datagraph.org 2010 03 grepping ntriples RDF ... more details
Multiple issues orphan February 2009 primarysources November 2008 SPARQL Syntax Expressions alternatively, SPARQL S Expressions is a format for data structures in an Resource Description Framework RDF centric syntax. External links http openjena.org wiki SSE SPARQL Syntax Expressions specification http jena.sourceforge.net ARQ algebra.html SPARQL Syntax Expressions in the ARQ query engine http blog.dydra.com 2011 09 08 dawg tests SPARQL Syntax Expressions translations of the DAWG test suite Category RDF data access Comp sci stub ... more details
Joseki may refer to Joseki , a sequences of moves in game of Go Joseki RDF server , a SPARQL server JOSEKI cipher , a pair of related algorithms from the National Security Agency for encrypting and decrypting of information stored in firmware Disambig ... more details
Orphan date September 2008 A Semantic Pipe is a stored SPARQL query or a sequence of queries over one or more Resource Description Framework RDF sources. The result of each query is stored physically and seen as a concrete and independent RDF resource, anything that can be done to a real RDF resource can be done to it, except that it can only be updated by its query i.e. based on it base resources. The result of each query can be used as input to other queries. Semantic Pipes are close to Oracle Corporation Oracle s Materialized view Materialized Views used in data warehousing , which are static snapshots of the data and their accuracy depends on the trigger mechanize behind their updates. see MashQL External links http mjarrar.blogspot.com 2008 02 semantic pipes towards web 30.html Semantic Pipes http pipes.deri.org Semantic Web Pipes http www.sparqlmotion.org SPARQLMotion http pipes.yahoo.com Yahoo Pipes OnToContent Category RDF data access ... more details
Cwm pronounced koom is general purpose data processing software for the semantic web , similar to sed or awk for text files or XSLT for XML . It is a forward chaining semantic reasoner that can be used for querying, checking, transforming and filtering information. Its core language is Resource Description Framework RDF , extended to include Rule of inference rules , it can use Resource Description Framework RDF XML or RDF Notation3 N3 see http www.w3.org 2000 10 swap Primer Notation3 Primer serializations. cwm can perform the following tasks Parse and pretty print the following RDF formats XML RDF, Notation3 , and N Triples . Store triples in a queryable triplestore a triples database . Perform inference s as a forward chaining FOPL inference engine . Perform builtin functions such as comparing strings, retrieving resources, all using an extensible builtins suite. cwm was written in Python programming language Python from 2000 10 onwards by Tim Berners Lee and Dan Connolly of the W3C . External links http www.w3.org 2000 10 swap doc cwm cwm homepage http infomesh.net 2001 cwm Information about CWM TimBL s Closed World Machine Category Python software Category Semantic Web Category Web services ... more details
Infobox W3C Standard title RDF in attributes status Published year started 2004 editors Ben Adida, Mark Birbeck base standards Resource Description Framework RDF related standards RDF Schema , Web Ontology ... a set of attribute level extensions to XHTML for embedding rich metadata within Web documents. The RDF data model mapping enables its use for embedding Resource Description Framework RDF Resource Description ... the extraction of RDF model triples by compliant user agents. The W3C RDF in XHTML Taskforce is also ... HTML RDFa A mechanism for embedding RDF in HTML ref The primary issue for the non XML implementation ... proposed by Mark Birbeck in the form of a W3C note entitled XHTML and RDF , ref name xhtml and rdf note cite web url http www.w3.org MarkUp 2004 02 xhtml rdf.html title XHTML and RDF W3C Note 14 February ... and rdf note cite web url http www.xml.com pub a 2004 03 03 deviant.html title Semantic Web Interest ... to any XML based language. Indeed, one of the earliest documents bearing the RDF A Syntax name, has the sub title A collection of attributes for layering RDF on XML languages . ref name rdfa 1 cite web url http www.w3.org MarkUp 2004 rdf a.html title RDF A Syntax A collection of attributes for layering RDF on XML languages date 2004 10 11 accessdate 2009 05 14 ref The document was written ... 2007 the XHTML 2 Working Group produced a module to support RDF annotation within the XHTML ... XHTML RDFa Modules, Modules to support RDF annotation of elements, W3C Editor s Draft 2 April 2007 ... rules for extending XHTML to support RDF, W3C Working Draft 18 October 2007 publisher World ... to support RDF, W3C Recommendation 14 October 2008 publisher World Wide Web Consortium date 2008 10 ... for use with the property attribute typeof optional attribute that specifies the RDF type s of the subject .... Self Containment The HTML and the RDF are separated Schema Modularity The attributes are reusable ... triples when the above document is automatically converted to RDF XML source lang xml ?xml version ... more details
Infobox file format name TriG icon logo extension mime text plain type code uniform type magic owner Freie Universit t Berlin genre Semantic Web semantic web container for Resource Description Framework RDF data extended from extended to TriG standard http www4.wiwiss.fu berlin.de bizer TriG Specification TriG is a serialization format for RDF Resource Description Framework graphs. It is a plain text format for serializing Named Graphs and RDF Datasets which offers a compact and readable alternative to the XML based TriX syntax TriX syntax. Example pre nowiki prefix rdf http www.w3.org 1999 02 22 rdf syntax ns . nowiki nowiki prefix xsd http www.w3.org 2001 XMLSchema . nowiki nowiki prefix swp http www.w3.org 2004 03 trix swp 1 . nowiki nowiki prefix dc http purl.org dc elements 1.1 . nowiki nowiki prefix ex http www.example.org vocabulary . nowiki nowiki prefix http www.example.org exampleDocument . nowiki nowiki G1 Monica ex name Monica Murphy . nowiki nowiki Monica ex homepage http www.monicamurphy.org . nowiki nowiki Monica ex email mailto monica monicamurphy.org . nowiki nowiki Monica ex hasSkill ex Management nowiki nowiki G2 Monica rdf type ex Person . nowiki nowiki Monica ex hasSkill ex Programming nowiki nowiki G3 G1 swp assertedBy w1 . nowiki nowiki w1 swp authority Chris . nowiki nowiki w1 dc date 2003 10 02 xsd date . nowiki nowiki G2 swp quotedBy w2 . nowiki nowiki G3 swp assertedBy w2 . nowiki nowiki w2 dc date 2003 09 03 xsd date . nowiki nowiki w2 swp authority Chris . nowiki nowiki Chris rdf type ex Person . nowiki nowiki Chris ex email mailto chris bizer.de nowiki pre External links http www4.wiwiss.fu berlin.de bizer TriG TriG Specification Semantic Web web stub Category RDF Category Syntax ... more details
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