Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

W3C completes bridge between HTML/microformats and semantic web

12.09.2007
GRDDL gives web content hooks to powerful reuse and data integration

Today, the World Wide Web Consortium completed an important link between Semantic Web and microformats communities. With "Gleaning Resource Descriptions from Dialects of Languages", or GRDDL (pronounced "griddle"), software can automatically extract information from structured Web pages to make it part of the Semantic Web. Those accustomed to expressing structured data with microformats in XHTML can thus increase the value of their existing data by porting it to the Semantic Web, at very low cost.

"Sometimes one line of code can make a world of difference," said Tim Berners-Lee, W3C Director. "Just as stylesheets make Web pages more readable to people, GRDDL makes Web pages, microformat tags, XML documents, and data more readable to Semantic Web applications, opening more data to new possibilities and creative reuse."

Getting data into and out of the Web; how is it happening today?

One aspect of recent developments some people call "Web 2.0" involves applications based on combining — in "mashups" — various types of data that are spread all around on the Web. A number of active communities innovating on the Web share the goal of sharing data such as calendar information, contact information, and geopositioning information. These communities have developed diverse social practices and technologies that satisfy their particular needs. For instance, search engines have had great success using statistical methods while people who share photos have found it useful to tag their photos manually with short text labels. Much of this work can be captured via "microformats". Microformats refer to sets of simple, open data formats built upon existing and widely adopted standards, including HTML, CSS and XML.

This wave of activity has direct connections to the essence of the Semantic Web. The Semantic Web-based communities have pursued ways to improve the quality and availability of data on the Web, making it possible for more intensive data-integration and more diverse applications that can scale to the size of the Web and allow even more powerful mashups. The Web-based set of standards that supports this work is known as the Semantic Web stack. The foundations of the Semantic Web stack meet the requirements for formality of some applications such as managing bank statements, or combining volumes of medical data.

Each approach to "getting your data out there" has its place. But why limit yourself to just one approach if you can benefit, at low cost, from more than one? As microformats users consider more uses that require data modelling, or validation, how can they take advantage of their existing data in more formal applications?

A bridge from flexible web applications to the semantic web

GRDDL is the bridge for turning data expressed in an XML format (such as XHTML) into Semantic Web data. With GRDDL, authors transform the data they wish to share into a format that can be used and transformed again for more rigorous applications.

GRDDL Use Cases provides insight into why this is useful through a number of real-world scenarios, including scheduling a meeting, comparing information from various retailers before making a purchase, and extracting information from wikis to facilitate e-learning. Once data is part of the Semantic Web, it can be merged with other data (for example, from a relational database, similarly exposed to the Semantic Web) for queries, inferences, and conversion to other formats.

The Working Group has reported on implementation experience, and its members have come forward with statements of support and commitments to implement GRDDL

GRDDL Test Cases is also published today, which describes and includes test cases for software agents to support GRDDL. The Working Group has produced a GRDDL service that allows users to input a GRDDL'd file and extract the important data.

These testimonials are in support of W3C issuance of GRDDL as a W3C Recommendation.

- In English: DCMI | INRIA | microformats.org | OpenLink Software | Talis Group Ltd.

The Dublin Core Metadata Initiative congratulates the W3C on the finalization of GRDDL and welcomes it as an important addition to the Web metadata infrastructure.
GRDDL is an essential tool in bridging the various expressions of Dublin Core metadata, and DCMI is creating GRDDL transforms that expose Dublin Core metadata expressed in XML and HTML to the Semantic Web.
By standardizing the transformation mechanisms, GRDDL allows for syntactic choices while enabling semantic interoperability -- both important needs in the metadata community -- and as such is fundamental to the future evolution of the Web.

-- Mikael Nilsson and Thomas Baker, DCMI Architecture Forum, Dublin Core Metadata Initiative

INRIA is proud to have contributed to the specification and design of GRDDL and is already promoting and integrating it in several projects and tools. Bridging the gap between the traditional Web and the Semantic Web is a seminal step in the deployment of semantic web technologies and applications. By allowing applications to automatically glean resources from the wealth of XML documents available online, this recommendation is opening a new highway for knowledge mashups and composition of application through web resources.

-- Pierre Paradinas, Head of Technological Development, INRIA

Microformats provide an easy way for many people to contribute semantic data to the web. With GRDDL all of that data is made available for RDF Semantic Web tools. Microformats and GRDDL can work together to build a better web.

-- Ryan King, an active member of microformats.org community

GRDDL is one of several initiatives from the W3C that seeks to unobtrusively evolve the current Web of Documents to a Web of interlinked Data.

-- Kingsley Idehen, CEO, OpenLink Software

Talis believes that GRDDL represents one of the most important steps along the road to the Semantic Web. It provides a very simple yet extraordinarily powerful mechanism to uplift documents into the web of data. Talis intends to fully support GRDDL in our Semantic Web Platform, allowing our customers to automatically extract searchable RDF metadata from their existing content with very little effort.

-- Ian Davis, CTO, Talis Group Ltd.

In French: INRIA

L'INRIA est fier d'avoir contribué aux spécifications et à la conception de GRDDL et intègre déjà cette technologie dans plusieurs projets et outils. Créer des passerelles entre le Web traditionnel et le Web sémantique est une étape critique dans le déploiement des technologies et des applications du Web sémantique. En permettant à des applications d'extraire automatiquement des données de toute la variété de documents XML accessibles en ligne, cette recommandation ouvre une nouvelle voie pour l'intégration de connaissances et la composition d'applications à travers les ressources du Web."

-- Pierre Paradinas, Directeur du Développement Technologique, INRIA

Marie-Claire Forgue | alfa
Further information:
http://www.w3.org/2007/07/grddl-pressrelease.html.en

More articles from Information Technology:

nachricht Smarter robot vacuum cleaners for automated office cleaning
15.08.2017 | Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO

nachricht Researchers 3-D print first truly microfluidic 'lab on a chipl devices
15.08.2017 | Brigham Young University

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

Gold shines through properties of nano biosensors

17.08.2017 | Physics and Astronomy

Greenland ice flow likely to speed up: New data assert glaciers move over sediment, which gets more slippery as it gets wetter

17.08.2017 | Earth Sciences

Mars 2020 mission to use smart methods to seek signs of past life

17.08.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>