Glossary about Controlled Vocabularies tematres thesaurus, thesauri, information retrieval, controlled vocabularies, glossary, definitions, structured vocabularies, facets, faceted classification 1998-12-31 2011-12-13 10:39:06 en preprocessingdata pre-processing Also called data preprocessing. Preliminary processing or transformation of data in order to facilitate further processing, parsing, etc 2011-08-16 23:06:51