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Register a new userExpressing OLAP operators with the TAX XML algebra
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Added by
Jerome Darmont
Publication date
2008
fields
Informatics Engineering
and research's language is
English
Authors
Marouane Hachicha
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No Arabic abstract
With the rise of XML as a standard for representing business data, XML data warehouses appear as suitable solutions for Web-based decision-support applications. In this context, it is necessary to allow OLAP analyses over XML data cubes (XOLAP). Thus, XQuery extensions are needed. To help define a formal framework and allow much-needed performance optimizations on analytical queries expressed in XQuery, having an algebra at ones disposal is desirable. However, XOLAP approaches and algebras from the literature still largely rely on the relational model and/or only feature a small number of OLAP operators. In opposition, we propose in this paper to express a broad set of OLAP operators with the TAX XML algebra.
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