The yearly organized Linking Open Data Triplification Challenge (as part of this year´s I-Semantics conference, 2 – 4 September 2009, GrazGraz is the second-largest city in Austria after Vienna and the capital of the federal state of Styria. It has a population of 291,890 as of 2010 (of which 258.605 have principal residence status). Graz has a long tradition as a student city: its six universities have more than 44,000 students. .../Austria) awards prizes to the most promising triplifications of existing Web applications, Websites and data sets.

The challenge (Patron: Sir Tim Berners-LeeSir Timothy John 'Tim' Berners-Lee, OM, KBE, FRS, FREng, FRSA (born 8 June 1955), also known as 'TimBL', is a British physicist, computer scientist and MIT professor, credited for his invention of the World Wide Web, (not the internet) making the first proposal for it in March 1989. On 25 ...) is open to anyone interested in applying Semantic Web and Linked Data technologies. We envision submissions such as following:

• Applications of Linked Data tools and techniques such as for example Triplify, Virtuoso or D2RQ on custom Web applications and data sets exposing a large quantity and variety of content.
• Implementations of exporters and mappers from existing content repository formats (such as mbox mailing list archives, Bib Te X, XML-Schemes etc.) into RDF and Linked Data.
• Adoptions / configurations of TriplifyPlugin for Web applications, which reveals the semantic structures encoded in relational databases by making database content available as RDF, JSON or Linked Data. (http://dl-learner.org/Projects/Triplify) for standard Web applications, such as for example Wikis, Weblogs, Webshops, Forums, Web-Gallery, ERP/CRMCustomer relationship management (CRM) is a broadly recognized, widely-implemented strategy for managing a company’s interactions with customers, clients and sales prospects. It involves using technology to organize, automate, and synchronize business processes—principally sales activities, ... systems and Web-calendar software. You can find popular Web applications for example at Source Forge.
• Portings of the Triplify script into other Web application programming languages such as Python, RubyRuby is a dynamic, reflective, general purpose object-oriented programming language that combines syntax inspired by Perl with Smalltalk-like features. Ruby originated in Japan during the mid-1990s and was initially developed and designed by Yukihiro "Matz" Matsumoto. It was influenced primarily ..., Perl, ASP. The Triplify script is very small (<300 lines of code) however, the port should be as compatible as possible with the current reference implementation but integrate well with the environment given by the programming language.
• Applications showcasing the benefits of Linked Data to end-users such as for information syndication, specialized search, browsing or augmentation of content.

Submissions should consist of a two page description in JUCS format of the application, accompanied by (a link to) the software source code and a link to an online demo. The descriptions should be submitted electronically via email to Michael Hausenblas with the subject Triplification Challenge Submission by May 30th, 2009.