79 search results - page 1 / 16 » Aggregate queries in peer-to-peer OLAP |
IPPS
2007
IEEE
13 years 11 months ago
2007
IEEE
In this paper we propose a new query processing method for the OLAP Enabled Grid, which blends sophisticated cache extraction techniques and data grid scheduling to efficiently s...
DMDW
2000
13 years 6 months ago
2000
A common optimization technique in the OLAP application domain is the use of summary aggregate data. For an appropriate support of analysis hot spots, we propose a query based agg...
SSD
2005
Springer
13 years 10 months ago
2005
Springer
Abstract. A top-k OLAP query groups measures with respect to some abstraction level of interesting dimensions and selects the k groups with the highest aggregate value. An example ...
VLDB
2005
ACM
13 years 10 months ago
2005
ACM
We extend the OLAP data model to represent data ambiguity, specifically imprecision and uncertainty, and introduce an allocation-based approach to the semantics of aggregation qu...
VLDB
1999
ACM
13 years 9 months ago
1999
ACM
On-Line Analytical Processing (OLAP) based on a dimensional view of data is being used increasingly for the purpose of analyzing very large amounts of data. To improve query perfo...