979 search results - page 32 / 196 » Issues in Developing Very Large Data Warehouses |
SIGMOD
2004
ACM
14 years 7 months ago
2004
ACM
Data items archived in data warehouses or those that arrive online as streams typically have attributes which take values from multiple hierarchies (e.g., time and geographic loca...
SIGMOD
1999
ACM
13 years 12 months ago
1999
ACM
Computing multidimensional aggregates in high dimensions is a performance bottleneck for many OLAP applications. Obtaining the exact answer to an aggregation query can be prohibit...
EDBT
2012
ACM
11 years 10 months ago
2012
ACM
In this paper we consider the problem of answering queries using views, with or without ontological constraints, which is important for data integration, query optimization, and d...
KES
2008
Springer
13 years 7 months ago
2008
Springer
The validation of clusters discovered in bio-molecular data is a central issue in bioinformatics. Recently, stability-based methods have been successfully applied to the analysis o...
ACL
1998
13 years 9 months ago
1998
Knowledge acquisition is a serious bottleneck for natural language understanding systems. For this reason, large-scale linguistic resources have been compiled and made available b...