Please use this identifier to cite or link to this item: http://repositorio.inesctec.pt/handle/123456789/6594
Title: A linear algebra approach to OLAP
Authors: Macedo,HD
José Nuno Oliveira
Issue Date: 2015
Abstract: Inspired by the relational algebra of data processing, this paper addresses the foundations of data analytical processing from a linear algebra perspective. The paper investigates, in particular, how aggregation operations such as cross tabulations and data cubes essential to quantitative analysis of data can be expressed solely in terms of matrix multiplication, transposition and the Khatri-Rao variant of the Kronecker product. The approach offers a basis for deriving an algebraic theory of data consolidation, handling the quantitative as well as qualitative sides of data science in a natural, elegant and typed way. It also shows potential for parallel analytical processing, as the parallelization theory of such matrix operations is well acknowledged.
URI: http://repositorio.inesctec.pt/handle/123456789/6594
http://dx.doi.org/10.1007/s00165-014-0316-9
metadata.dc.type: article
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