766 search results - page 21 / 154 » Commuting aggregation operators |
ICDE
2003
IEEE
14 years 9 months ago
2003
IEEE
Iceberg-cube mining is to compute the GROUP BY partitions, for all GROUP BY dimension lists, that satisfy a given aggregate constraint. Previous works have pushed anti-monotone co...
ADHOCNOW
2008
Springer
13 years 8 months ago
2008
Springer
This paper presents a novel method for optimizing sliding window based continuous queries. We deal with two categories of aggregation operations: stepwise aggregation (e.g. COUNT) ...
NMR
2004
Springer
14 years 27 days ago
2004
Springer
All major semantics of normal logic programs and normal logic programs with aggregates can be described as fixpoints of the one-step provability operator or of operators that can...
CORR
2006
Springer
13 years 7 months ago
2006
Springer
Abstract: This paper studies 3-polygraphs as a framework for rewriting on two-dimensional words. A translation of term rewriting systems into 3-polygraphs with explicit resource ma...
DSD
2009
IEEE
13 years 10 months ago
2009
IEEE
—Reduction circuits are used to reduce rows of floating point values to single values. Binary floating point operators often have deep pipelines, which may cause hazards when m...