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Deploying Web-scale Mash-ups by Linking Microformats
and the Semantic Web

Time: Tuesday, May 8 (half-day, afternoon, 1:30pm to 5:00pm)

Location: Norquay


Recently, a plethora of technologies associated with the "Web 2.0" have been deployed. Among these technologies, "microformats" provide an easy-to-use way to structure conventional HTML markup with semantics, as shown by the deployment of microformats on popular services like LinkedIn and This presents a rich store of data for Web mash-up applications, if only the data could be easily extracted from HTML and could be integrated across multiple domains. The Resource Description Framework (RDF) provides semantics for sharing data across sources and domains, supporting Web-scale mash-ups.

GRDDL presents an easy-to-use way for authors of HTML and XML to have clients extract RDF from their data, and so serves among other things as a "low-cost" upgrade path to convert microformat data to RDF in order to integrate diverse data sources. Furthermore, we will cover how GRDDL can be used in a variety of XML contexts for data integration using real-world examples. This hands-on tutorial will present people a hands-on introduction to microformats, mash-ups, RDF, GRDDL, and ways of embedding RDF directly in HTML like RDFa.

Prerequisite Knowledge:

Basic HTML and XML


Dan Connolly is a research scientist at the MIT Computer Science and Artificial Intelligence Laboratory (CSAIL) in the Decentralized Information Group (DIG) and a member of the technical staff of the World Wide Web Consortium (W3C). Dan played leading roles in the development of URIs, HTTP, XML, RDF, and OWL and currently serves on the W3C Technical Architecture Group (TAG), as well as serving as the originator and editor of the GRDDL specification.

Harry Halpin is a researcher at the University of Edinburgh in the School of Informatics, with a background in natural language processing and data-mining, and serves as the Chair of the W3C GRDDL Working Group.

Murray Maloney has been heavily involved in the development of Web standards since 1993, and is a founding member of the HTML, XML and CSS working groups, and participates in the GRDDL and XML Processing Working Groups. He was previously a technical director with SoftQuad and manager with the Santa Cruz Operation (SCO).