Internal:Speakers/MK2
MK2: Markus Kroetzsch
Title: Wikipedia and the Semantic Web The Missing Links? (ID MK2)
- Language: English | License: ?
- Room size: ?
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Author[s]: Denny Vrandecic, Max Volkel, Markus Krotzsch Institute AIFB, University of Karlsruhe, Germany.
- Contact: {vrandecic,voelkel,kroetzsch}@aifb.uni-karlsruhe.de [OTRS]
- Contacted by: submission
- (From: Karlsruhe?, Germany | available days: ?)
(from PDF)
Wikipedians already have come up with several ideas to further structure and disseminate the vast amount of information available through Wikipedia, which lead to such diverse projects as Wikidata, Wikipedia DTD, Person DTD, Metalingo and WikiSpecies. Recently, categories have been introduced as a new technology that quickly matured as a key feature to organize Wikipedia's content. However, in spite of these different forms of available metadata, one cannot access information that is dispersed across pages, e.g. when looking for James Bond movies from the 60s that were not starring Sean Connery { a query that most likely will never be answered by a dedicated category or list article. In fact, even the creation of categories and lists for far more obvious questions would lead to enormous redundancy. On the other hand, the information needed to answer such queries automatically is missing. While categories already are machine accessible, links between articles are not. We propose to add typed links as a means of overcoming this de ciency in a simple and non-intrusive way. By extending the link-syntax of MediaWiki from [[article name|text]] to, e.g., [[article name|text::type]], one can specify types for links. For example, the article "On Her Majesty's Secret Service" could contain the sentence "In 1969, it was produced as [. . . ] the first and only film starring [[George Lazenby::hasMainActor]] as James Bond," where hasMainActor indicates that the linked article is about a main actor of the given movie. Many other types of semantic links, like isCapitalOf, isMotherOf, or yearOfBirth, are added transparently to the Wikipedia, gradually and without having to change existing articles, but with the ability to enhance existing ones tremendously. Just like categories were added, community and practice would decide on the usage of typed links. The emerging network of typed links, categories, and articles is exactly the kind of data structure that powers the Semantic Web. The W3C created the open standards RDF and OWL for exchanging such data structures. We will show how to export the proposed metadata in such a format, thus enabling software to operate on Wikipedias knowledge. Using existing tools one gets new ways to visualize, browse, query, check for consistency, and author the Wikipedia content.
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