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Title: Expressing OLAP operators with the TAX XML algebra

Essay Details

Subject: Technology
Date: January 29, 2014
Level: University
Grade: A
Length: 13 / 3730
No of views: 0
Essay rating: good 0, average 0, bad 0 (total score: 0)

Essay text:

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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