UDC on the Internet: Theory and project in evolution for use of indexing and retrieval systems

Abstract

The starting point of this article is to compare the features of faceted classification and ontologies with a re-evaluation of UDC (Universal Decimal Classification) as an analytico-synthetic classification system. We are therefore proposing a theory that was used as the basis of a project in the 1980s but which will imply an advance in the field of information retrieval in the future context of the Internet. This theory is based on the post-coordinated use of LCSH (Library of Congress Subject Headings) and the setting-up of their equivalence with UDC for indexing. The retrieval process is based on the generation of clusters characteristic of data mining and the linking of existing controlled vocabularies and free language in all languages with the corresponding UDC notations. This will be achieved by making UDC compatible with existing classifications, thus profiting from all the knowledge structured so far, thanks to the creation of a suitable format.