238 search results - page 4 / 48 » Probabilistic Data Modeling and Querying for Location-Based ... |
VLDB
2000
ACM
13 years 10 months ago
2000
ACM
Data allocation is a key performance factor for parallel database systems (PDBS). This holds especially for data warehousing environments where huge amounts of data and complex an...
GIS
2009
ACM
13 years 11 months ago
2009
ACM
Data warehouses and On-Line Analytical Processing (OLAP) provide an analysis framework supporting the decision making process. In many application domains, complex analysis tasks ...
ICCSA
2009
Springer
14 years 1 months ago
2009
Springer
Data aggregation in Geographic Information Systems (GIS) is a desirable feature, spatial data are integrated in OLAP engines for this purpose. However, the development and operatio...
DAWAK
2001
Springer
13 years 11 months ago
2001
Springer
Tree based indexing structures like -trees, ·-trees, Bitmap indexes and Ê-trees have become essential for getting good performance when accessing vast datasets. However, most dat...
DAWAK
2007
Springer
14 years 23 days ago
2007
Springer
In this paper, we deal with the problem of performing what-if analysis for changes that occur in the schema/structure of the data warehouse We abstract software modules, queries, r...