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Fuentes para la actualización de macrotesauros: noticias de divulgación científica

Facultad de Comunicación y Documentación, Universidad de Murcia
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  • Ha. Periodicals
  • Newspapers.
  • Id. Knowledge Representation.
  • Ie. Data And Metadata Structures.
  • L. Information Technology And Library Technology.


Thesauri are knowledge organization tools necessary to control information, but many of them are not updating with the frequency required, it reduces their usefulness. This paper aims to analyze the updating degree of UNESCO thesaurus and European Union thesaurus (EUROVOC) and determine if popular science news are useful for this renovation. In this work, keywords were extracted from headlines. After, using Information Retrieval techniques (N-grams and Apache Solr) they were searched in both thesauri to find equivalences. Data obtained let us confirm that none of these macro-thesauri should be used to describe popular science news, although both of them can be used as a base for building other knowledge organization vocabularies. On the other hand, a more frequent review is necessary. Inclusion of new terms and redefinition of relationships between them is unquestionable to increase the quality of analyzed tools. Popular science news are adequate to this purpose, they constitute real sources of concepts and terms

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