Semantic Web news

The W3C launched the new Linked Data Platform (LDP) Working Group to promote the use of linked data on the Web. Per its charter, the group will explain how to use a core set of services and technologies to build … Continue reading →

The RDF Web Applications Working Group has published three Proposed Recommendations for RDFa Core 1.1, RDFa Lite 1.1 and XHTML+RDFa 1.1. Together, these documents outline the vision for RDFa in a variety of XML and HTML-based Web markup languages. RDFa … Continue reading →

The W3C Provenance working group has released a new set of working drafts for the PROV standard. In this post we present a brief overview of the PROV ontology (PROV-O) using an example from the PROV primer. The core classes … Continue reading →

The Provenance Working Group has released the fourth public working draft of its data model. The purpose of this blog is to summarize the changes that occurred since the third working draft. From an editorial perspective, three significant changes took place since the … Continue reading →

Back in January, the Provenance Working Group released a series of draft specifications: the PROV family of specs. Since then, we’ve been working hard to simplify, organize and improve those specifications to enable the interchange of provenance information on the … Continue reading →

The Provenance Working Group published 5 Working Drafts today related to the PROV data model. Provenance information can be used for many purposes, such as understanding how data was collected so it can be meaningfully used, determining ownership and rights … Continue reading →

The SPARQL Working Group published three Last Call Working Drafts: SPARQL 1.1 Overview, which provides an introduction to a set of W3C specifications that facilitate querying and manipulating RDF graph content on the Web or in an RDF store. SPARQL … Continue reading →

Today, at WWW2012 conference, an interesting paper was presented, criticizing a draft design of the SPARQL 1.1 working group, with the controversial title “Counting Beyond a Yottabyte, or How SPARQL 1.1 Property Paths Will Prevent Adoption of the Standard” In … Continue reading →

The specification is in RDFa 1.1 is in Candidate Recommendation. This means that implementations are gathered around an extensive test suite (close to 300 tests) to produce a suitable implementation report. Well… three implementations are already in a neck-and-neck race … Continue reading →

The W3C Government Linked Data Working Group has published four First Public Working Drafts today: Data Catalog Vocabulary (DCAT). DCAT is an RDF vocabulary designed to facilitate interoperability between data catalogs published on the Web. This document defines the schema … Continue reading →

The “Linked Data Basic Profile 1.0” specification has been published as a W3C Member Submission, co-authored by experts from IBM, DERI, EMC, Oracle, Red Hat, SemanticWeb.com, and Tasktop. This specification defines a set of best practices and a simple approach … Continue reading →

The HTML5 Working Group has recently published ten documents,  updating a number of HTML5 related Working Drafts. From the Semantic Web perspective, two documents are of a particular interest: A new version of the “HTML+RDFa 1.1” specification. This version, developed … Continue reading →

Two days ago, RDFa 1.1 entered the Candidate Recommendation phase at the World Wide Web Consortium. The purpose of this phase is to announce that all technical work on RDFa 1.1 is complete, to establish a feature freeze on the … Continue reading →

The Media Fragments Working Group has published a Proposed Recommendation of Media Fragments URI 1.0 (basic). This document specifies the syntax for constructing media fragment URIs and explains how to handle them when used over the HTTP protocol. The syntax … Continue reading →

The RDF Web Applications Working Group has published three Candidate Recommendation documents: RDFa Core 1.1, RDFa Lite 1.1 and XHTML+RDFa 1.1. Together, these documents outline the vision for RDFa in a variety of XML and HTML-based Web markup languages. RDFa … Continue reading →

The HTML Data Task Force of the Semantic Web Interest Group has published two Notes today: The HTML Data Guide aims to help publishers and consumers of HTML data. With several syntaxes (microformats, microdata, RDFa) and vocabularies (schema.org, Dublin Core, … Continue reading →

The RDB2RDF Working Group has published two Candidate Recommendation documents that help to bring relational database information to the Semantic Web: R2RML: RDB to RDF Mapping Language and A Direct Mapping of Relational Data to RDF. The former describes R2RML, … Continue reading →

The W3C Media Annotations Working Group has published a Recommendation of Ontology for Media Resources 1.0. The term “Ontology” is used in its broadest possible definition here: a core vocabulary. The intent of this vocabulary is to bridge the different … Continue reading →

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 … Continue reading →

W3C has launched a new HTML validation site, the Nu Markup Validation Service. From a Semantic Web point of view it is important to note that the default setting of the validator validates HTML5 with RDFa 1.1. Lite and with … Continue reading →