SciELO - Scientific Electronic Library Online

 
 número53Flujo de potencia AC descentralizado para sistemas de potencia multi-área usando un método de descomposición basado en relajación LagrangianaTopology effect of two PSO and simplex hybrids índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Não possue artigos similaresSimilares em SciELO
  • Em processo de indexaçãoSimilares em Google

Compartilhar


Revista Facultad de Ingeniería Universidad de Antioquia

versão impressa ISSN 0120-6230versão On-line ISSN 2422-2844

Resumo

MORENO, Francisco; AMON, Iván  e  ARANGO, Fernando. Change of degree of containment in a multidimensional model. Rev.fac.ing.univ. Antioquia [online]. 2010, n.53, pp.236-244. ISSN 0120-6230.

Data warehouses are usually modelled in a multidimensional way. The multidimensional models have dimensions composed by hierarchically organized levels according to their full containment. For example, in a geographical dimension with Department and Country levels, a department is fully contained into one country. Recently, a generalization of full containment has been proposed. It is known as the partial containment. For example, only a 20% of a highway could be contained into a department. In this paper we adopt a multidimensional model that supports partial containment. Our main contribution is to extend this model in order to support the change of the percentage of containment, because the percentage can change over time. To the best of our knowledge, this topic has not been examined in previous works. Our extension is also incorporated into a multidimensional query language, which enables what-if analysis in order to help decision-makers. In order to illustrate the improvements of our proposal, we present a study case related to car accidents.

Palavras-chave : Multidimensional models; data warehouses; full containment; partial containment; temporality.

        · resumo em Espanhol     · texto em Espanhol     · Espanhol ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons