Expressing OLAP operators with the TAX XML algebra

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Sheila A


Date added:

February 26, 2015








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14 / 3730


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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 one’s 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...
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In opposition, we propose in this paper to express a broad set of OLAP operators with the TAX XML algebra. Categories and Subject Descriptors H.2[Database Management]: Languages General Terms XML-OLAP algebras 1. INTRODUCTION Data warehouses andOLAP(On-LineAnalyticalProcessing) are nowadays technologically mature...
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