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New Working Draft of RDF 1.1 Concepts and Abstract Syntax

Angela Guess — Thu, 17 Jan 2013 13:00:38 +0000

Ivan Herman of the W3C reports, “The W3C RDF Working Group has published a Working Draft of RDF 1.1 Concepts and Abstract Syntax. RDF 1.1 Concepts and Abstract Syntax defines an abstract syntax (a data model) which serves to link all RDF-based languages and specifications. The abstract syntax has two key data structures: RDF graphs are sets of subject-predicate-object triples, where the elements may be IRIs, blank nodes, or datatyped literals. They are used to express descriptions of resources. RDF datasets are used to organize collections of RDF graphs, and comprise a default graph and zero or more named graphs. This document also introduces key concepts and terminology, and discusses datatyping and the handling of fragment identifiers in IRIs within RDF graphs.” continued…

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Manu Sporny on HTML5 and RDFa 1.1

Angela Guess — Thu, 13 Sep 2012 10:49:04 +0000

Manu Sporny has published an interesting article regarding HTML5 and RDFa 1.1. He writes, “The newly re-chartered RDFa Working Group at the W3C published a First Public Working Draft ofHTML5+RDFa 1.1 today. This might be confusing to those of you that have been following the RDFa specifications. Keep in mind that HTML5+RDFa 1.1 is different from XHTML+RDFa 1.1, RDFa Core 1.1, and RDFa Lite 1.1 (which are official specs at this point). This is specifically about HTML5 and RDFa 1.1. The HTML5+RDFa 1.1 spec reached Last Call (aka: almost done) status at W3C via the HTML Working Group last year. So, why are we doing this now and what does it mean for the future of RDFa in HTML5?” continued…

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Working Draft of Provenance Access and Query Published

Angela Guess — Thu, 21 Jun 2012 13:00:33 +0000

Ivan Herman of W3C announced, “The W3C Provenance Working Group has published a Working Draft of PROV-AQ: Provenance Access and Query. This document specifies how to use standard Web protocols, including HTTP, to obtain information about the provenance of resources on the Web. It describes both simple access mechanisms for locating provenance information associated with web pages or resources, and provenance query services for more complex deployments. This is part of the larger W3C Prov provenance framework.” continued…

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W3C’s Provenance Data Model

Angela Guess — Mon, 13 Feb 2012 17:30:44 +0000

Luc Moreau recently reported on the current status of the W3C‘s Provenance Data Model. He wrote, “The Provenance Working Group began its activities with a charter naming some 17 concepts relevant to provenance, such as resource, process execution, use, derivation, version, etc. For the first 3 months leading to our first face to face meeting, we debated definitions for these concepts. Importantly, for the social cohesion of the group, we developed a common vocabulary shared by members to communicate.” continued…

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W3C Publishes New Working Draft of the PROV Data Model

Angela Guess — Tue, 20 Dec 2011 16:30:15 +0000

The W3C Provenance Working Group recently announced that the group “has published a new Working Draft of The PROV Data Model and Abstract Syntax Notation. Provenance of information is crucial in deciding whether information is to be trusted, how it should be integrated with other diverse information sources, and how to give credit to its originators when reusing it. In an open and inclusive environment such as the Web, users find information that is often contradictory or questionable: provenance can help those users to make trust judgments. PROV-DM is a data model for provenance for building representations of the entities, people and activities involved in producing a piece of data or thing in the world.” continued…

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RDB2RDF Working Group Publishes 2 Last Call Working Drafts

Angela Guess — Thu, 22 Sep 2011 18:30:54 +0000

Two last call working drafts have been published by the W3C’s RDB2RDF Working Group regarding bringing relational database information to the semantic web. The two papers are entitled R2RML: RDB to RDF Mapping Language and A Direct Mapping of Relational Data to RDF: “The former describes R2RML, a language for expressing customized mappings from relational databases to RDF datasets. Such mappings provide the ability to view existing relational data in the RDF data model, expressed in a structure and target vocabulary of the mapping author’s choice. The latter document defines a direct mapping from relational data to RDF. Comments are welcome through 1 November.” continued…

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RDF Working Group Publishes Draft of RDF 1.1 Concepts & Abstract Syntax

Angela Guess — Thu, 01 Sep 2011 14:30:26 +0000

The W3C reports that “The RDF Working Group has published the First Public Working Draft of RDF 1.1 Concepts and Abstract Syntax. The Resource Description Framework (RDF) is a framework for representing information in the Web. This document defines an abstract syntax (a data model) on which RDF is based, and which serves to link concrete syntaxes to its formal semantics. It also includes discussion of key concepts, datatyping, character normalization and handling of IRIs.” continued…

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W3C Publishes Two Last Call Working Drafts on RDFa

Angela Guess — Mon, 04 Apr 2011 18:30:34 +0000

The W3C RDFa Working Group “has published Last Call Working Drafts of RDFa Core 1.1 and XHTML+RDFa 1.1.” The release states, “The current Web is primarily made up of an enormous number of documents that have been created using HTML. These documents contain significant amounts of structured data, which is largely unavailable to tools and applications. When publishers can express this data more completely, and when tools can read it, a new world of user functionality becomes available, letting users transfer structured data between applications and web sites, and allowing browsing applications to improve the user experience.” continued…

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