Author Archives: Ivan Herman

About Ivan Herman

Ivan Herman is the Semantic Web Activity Lead at W3C. He graduated as a mathematician at the Eötvös Loránd University of Budapest, Hungary, in 1979. After a brief scholarship at the Université Paris VI he joined the Hungarian research institute in computer science (SZTAKI) where he worked for 6 years. He left Hungary in 1986 and, after a few years in industry, he joined the Centre for Mathematics and Computer Sciences (CWI) in Amsterdam where he has held a tenure position since 1988. He received a PhD degree in Computer Science in 1990 at the Leiden University, in the Netherlands. Ivan joined the W3C team as Head of Offices in January 2001 while maintaining his position at CWI. He served as Head of Offices until June 2006, when he was asked to take the Semantic Web Activity Lead position.

W3C’s RDF Validation Workshop – Practical Assurances for Quality RDF Data

Posted on May 22, 2013 by Ivan Herman

W3C announced today a RDF Validation Workshop – Practical Assurances for Quality RDF Data, 10-11 September 2013, in Cambridge, USA. The Semantic Web has demonstrated considerable value for collaborative contributions to data. Adoption in many mission-critical environments requires data to … Continue reading →

New vCard in RDF Ontology draft

Posted on May 2, 2013 by Ivan Herman

The Semantic Web Interest Group has published a new draft for the vCard-in-RDF Ontology, edited by Renato Iannella and James McKinney. The new draft updates the previous version by aligning it with the latest IETF vCard specification, ie, RFC6350. This … Continue reading →

The The PROV Family of Documents are W3C Recommendations

Posted on April 30, 2013 by Ivan Herman

The W3C Provenance Working Group was chartered to develop a framework for interchanging provenance on the Web. The Working Group has now published the PROV Family of Documents as W3C Recommendations, along with corresponding supporting notes. You can find a … Continue reading →

German Translation of RDFa 1.1 Core

Posted on April 24, 2013 by Ivan Herman

Stefan Schumacher published a German translation of the “RDFa 1.1 Core”, under the title “RDFa 1.1 Core”.

Japanese Translation of SPARQL 1.1 Overview Published

Posted on April 23, 2013 by Ivan Herman

上綱秀治 (Shuji Kamitsuna) published a Japanese translation of the “SPARQL 1.1 Overview”, under the title “SPARQL 1.1概要”.

Working drafts for RDF 1.1 Semantics, TriG, N-Triples and N-Quads published

Posted on April 10, 2013 by Ivan Herman

The W3C RDF Working Group has published two Working Drafts today: RDF 1.1 Semantics. This document describes a precise semantics for the Resource Description Framework 1.1 and RDF Schema. It defines a number of distinct entailment regimes and corresponding systems … Continue reading →

New prefixes added to the RDFa Core Initial Context

Posted on March 29, 2013 by Ivan Herman

The W3C RDFa Working Group has added some new predefined prefixes to the RDFa Core Initial Context: “prov” is predefined prefix for “http://www.w3.org/ns/prov#“, used by the “PROV Provenance Ontology”, currently a W3C Proposed Recommendation “rr” is a predefined prefix for … Continue reading →

Eleven SPARQL 1.1 Specifications are W3C Recommendations

Posted on March 21, 2013 by Ivan Herman

The SPARQL Working Group has completed development of its full-featured system for querying and managing data using the flexible RDF data model. It has now published eleven Recommendations for SPARQL 1.1, detailed in SPARQL 1.1 Overview. SPARQL 1.1 extends the 2008 Recommendation for SPARQL … Continue reading →

Two RDF Vocabularies Published for Governmental Use (and more…)

Posted on March 14, 2013 by Ivan Herman

The W3C Government Linked Data Working Group has published two Last Call Working Drafts: The RDF Data Cube Vocabulary. This is an RDF vocabulary for publishing multidimensional data, particularly statistical data. It is compatible with the cube model that underlies SDMX (Statistical … Continue reading →

PROV Family of Documents Published as Proposed Recommendations

Posted on March 12, 2013 by Ivan Herman

The W3C Provenance Working Group has published four Proposed Recommendation Documents along with corresponding supporting notes. You can find a complete list at the PROV Overview draft. These documents provide a framework for interchanging provenance on the Web. PROV enables one to represent … Continue reading →