Most people think of a repository as being a static archive of published documents. A dynamic knowledge repository is a living, breathing, rapidly evolving repository of all the stuff accumulating moment to moment throughout the life of a project or pursuit. page 
A DKR can also refer to a comprehensive knowledge base on a particular topic or domain, such as the archives of the Human Genome Project, the Library of Congress, Wikipedia, and the Internet Archive.
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Knowledge Graphs on the Web – an Overview. pdf