Computing appropriate representations for multidimensional data

  • Authors:
  • Yeow Wei Choong;Dominique Laurent;Patrick Marcel

  • Affiliations:
  • LI, HELP Institute, BZ-2 Pusat Bandar Damansara, 50490 Kuala Lumpur, Malaysia;LI, Université F. Rabelais de Tours, 3 place Jean Jaurès, 41000 Blois, France;LI, Université F. Rabelais de Tours, 3 place Jean Jaurès, 41000 Blois, France

  • Venue:
  • Data & Knowledge Engineering - Special issue: Advances in OLAP
  • Year:
  • 2003

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Abstract

On-line analytical processing (OLAP) provides an interactive query-driven analysis of multidimensional data based on a set of navigational operators like roll-up or slice and dice. In most cases, the analyst is expected to use these operations intuitively to find interesting patterns in a huge amount of data of high dimensionality.In this paper, we propose an approach to enhance this analysis by preparing the data set so that the analyst can explore it in a more systematic and effective manner. More precisely we define a measurement of the quality of the representation of multidimensional data and we present a framework for investigating the computation of appropriate representations. We identify the problems of computing such representations and study them w.r.t. an OLAP restructuring operator.