Abstract
The DBpedia project is a community eort to extract structured information
from Wikipedia and to make this information accessible on the Web. The resulting
DBpedia knowledge base currently describes over 2.6 million entities. For each of
these entities, DBpedia denes a globally unique identier that can be dereferenced
over the Web into a rich RDF description of the entity, including human-readable
denitions in 30 languages, relationships to other resources, classications in four
concept hierarchies, various facts as well as data-level links to other Web data
sources describing the entity. Over the last year, an increasing number of data
publishers have begun to set data-level links to DBpedia resources, making DBpedia
a central interlinking hub for the emerging Web of data. Currently, the Web of
interlinked data sources around DBpedia provides approximately 4.7 billion pieces of
information and covers domains such as geographic information, people, companies,
lms, music, genes, drugs, books, and scientic publications. This article describes
the extraction of the DBpedia knowledge base, the current status of interlinking
DBpedia with other data sources on the Web, and gives an overview of applications
that facilitate the Web of Data around DBpedia.
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