The IRMA Community
Newsletters
Research IRM
Click a keyword to search titles using our InfoSci-OnDemand powered search:
|
Hierarchies
|
|
Author(s): Elaheh Pourabbas (Istituto di Analisi dei Sistemi ed Informatica - C. N. R., Italy)and Maurizio Rafanelli (Istituto di Analisi dei Sistemi ed Informatica - C. N. R., Italy)
Copyright: 2003
Pages: 25
Source title:
Multidimensional Databases: Problems and Solutions
Source Author(s)/Editor(s): Maurizio Rafanelli (Istituto di Analisi dei Sistemi ed Informatica – C.N.R., Italy)
DOI: 10.4018/978-1-59140-053-0.ch004
PurchaseView Hierarchies on the publisher's website for pricing and purchasing information. |
Abstract
In this chapter we will focus on the rules of aggregation hierarchies in analysis dimensions of a cube. We give an overview of the related works on the basic concepts of the different types of aggregation hierarchies. We then discuss the hierarchies from two different points of view: mapping between domain values and hierarchical structures. In relation to them, we introduce the characterization of some OLAP operators on hierarchies and give a set of operators that concern the change in the hierarchy structure. Finally, we propose an enlargement of the operator set concerning hierarchies.
Related Content
|
Renjith V. Ravi, Mangesh M. Ghonge, P. Febina Beevi, Rafael Kunst.
© 2022.
24 pages.
|
|
Manimaran A., Chandramohan Dhasarathan, Arulkumar N., Naveen Kumar N..
© 2022.
20 pages.
|
|
Ram Singh, Rohit Bansal, Sachin Chauhan.
© 2022.
19 pages.
|
|
Subhodeep Mukherjee, Manish Mohan Baral, Venkataiah Chittipaka.
© 2022.
17 pages.
|
|
Vladimir Nikolaevich Kustov, Ekaterina Sergeevna Selanteva.
© 2022.
23 pages.
|
|
Krati Reja, Gaurav Choudhary, Shishir Kumar Shandilya, Durgesh M. Sharma, Ashish K. Sharma.
© 2022.
18 pages.
|
|
Nwosu Anthony Ugochukwu, S. B. Goyal.
© 2022.
23 pages.
|
|
|