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Wikipedia has become one of the largest online repositories of encyclopedic knowledge. Wikipedia editions are available for more than 200 languages, with entries varying from a few pages to more than 1 million articles per language. Embedded in each Wikipedia article is an abundance of links connecting the most important words or phrases in the text to other pages, thereby letting users quickly access additional information. An automatic text-annotation system combines keyword extraction and word-sense disambiguation to identify relevant links to Wikipedia pages.