Stefan Berger, Michael Schrefl,
"Analysing Multi-dimensional Data Across Autonomous Data Warehouses"
, in A Min Tjoa, Juan C. Trujillo : Proceedings of the 8th International Conference on Data Warehousing and Knowledge Discovery (DaWaK 2006), Sep. 4-8, 2006, Krakow, Poland, Serie Lecture Notes in Computer Science (LNCS), Vol. 4081, Springer Verlag Deutschland, Seite(n) 120-133, 9-2006, ISBN: 3-540-37736-0
Original Titel:
Analysing Multi-dimensional Data Across Autonomous Data Warehouses
Sprache des Titels:
Englisch
Original Buchtitel:
Proceedings of the 8th International Conference on Data Warehousing and Knowledge Discovery (DaWaK 2006), Sep. 4-8, 2006, Krakow, Poland
Original Kurzfassung:
Business cooperations frequently require to analyse data across enterprises, where there is no central authority to combine and manage cross-enterprise data. Thus, rather than integrating independent data warehouses into a Distributed Data Warehouse (DDWH) for crossenterprise analyses, this paper introduces a multi data warehouse OLAP language for integrating, combining, and analysing data from several, independent data warehouses (DWHs). The approach may be best compared to multi-database query languages for database integration.The key difference to these prior works is that they do not consider the multi-dimensional organisation of data warehouses.
The major problems addressed and solutions provided are: (1) a classification of DWH schema and instance heterogeneities at the fact and dimension level, (2) a methodology to combine independent data cubes taking into account the special characteristics of conceptual DWH schemata, i.e., OLAP dimension hierarchies and facts, and (3) a novel query language for bridging these heterogeneities in cross-DWH OLAP queries.
Schlagwörter: distributed Data Warehousing, distributed OLAP, multi-dimensional data integration
Sprache der Kurzfassung:
Englisch
Veröffentlicher:
Springer Verlag Deutschland
Serie:
Lecture Notes in Computer Science (LNCS)
Volume:
4081
Seitenreferenz:
120-133
Erscheinungsmonat:
9
Erscheinungsjahr:
2006
ISBN:
3-540-37736-0
Anzahl der Seiten:
14
Notiz zur Publikation:
If you are interested in the paper, you may receive a copy (PDF) by sending an e-mail to our office (dke.win@jku.at). Please include the paper-no. (Berg06a) and agree to use the paper for scientific purposes and private use only!
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