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Dagobert Soergel
College of Information Studies, University of Maryland

The rise of ontologies or the reinvention of classification

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Classifications/ontologies, thesauri, and dictionaries serve many functions, which are summarized in this note. As a result of this multiplicity of functions, classifications ?often called ontologies ?are developed in many communities of research and practice. Unfortunately, there is little communication and mutual learning; thus, efforts are fragmented, resulting in considerable reinvention and less than optimal products.
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