Paper Info
Title
A Model for Distributing and Querying a Data Warehouse on a Computing Grid
Abstract
Data warehpuses store large volumes of data according to a multidimensional model dimensions representing different axesof analysis. OLAP systems (Online Analytical Processing) provide the ability to interactively explore the data warehouse. Rising volumes and complexity of data favor the use of morepowerful distributed computing architectures. Computing grids in particular are built for decentralized management of heterogeneousdistributed resources. Their lack of centralized control however conflicts with classic centralized data warehouse models. To take advantage of a computing grid infrastracture to operate a data warehouse several problems need to be solved. First the data warehouse must be uniquely indentified and judiciously partitioned to allow effecient distribution querying and exchange among the nodes of the grid. We propose a data model based on "chunks" as atomic entities of warehouse data that can be uniquely identified. We then build contiguous blocks of these chunks to obtain suitable fragments of the data warehouse. The fragments stored on each grid node must be indexed in a uniform way to effectively interact with existing gridservices. Our indexing structure consists of a lattice structure mapping queries to warehouse fragments and specialized spatial index structure formed by X-trees providing the information neccessary for optimized query evaluation plans.
Year
DOI
Venue
2005
10.1109/ICPADS.2005.35
ICPADS (1)
Keywords
Field
DocType
data warehouse,grid node,warehouse fragment,computing grid,computing grid infrastracture,indexing structure,data warehpuses,data model,warehouse data,classic centralized data warehouse,data mining,grid computing,distributed computing,data warehouses,resource management,lattice structure,multidimensional systems,spatial index,tree data structures,computer architecture,online analytical processing,indexation,data models
Data warehouse,Data modeling,Grid computing,Computer science,Dimensional modeling,Online analytical processing,Data model,Spatial database,Grid,Database,Distributed computing
Conference
ISBN
Citations 
PageRank 
0-7695-2281-5-01
19
0.95
References 
Authors
13
3
Name
Order
Citations
PageRank
Pascal Wehrle1362.76
Maryvonne Miquel219417.82
Anne Tchounikine315425.09