766 search results - page 15 / 154 » Commuting aggregation operators |
ICDS
2007
IEEE
15 years 4 months ago
2007
IEEE
— In an attempt to optimize network performance of delivered 2G and 3G services and reduce operating costs, today's mobile operators are searching for aggregation and concen...
59
Voted
EUSFLAT
2007
14 years 11 months ago
2007
In this paper, aggregation is treated as a logical and/or pseudo-logical operation what is important from many points of view such as adequacy and interpretations.
68
Voted
OSDI
2002
ACM
15 years 10 months ago
2002
ACM
SC
2000
ACM
15 years 2 months ago
2000
ACM
Algebraic multigrid methods offer the hope that multigrid convergence can be achieved (for at least some important applications) without a great deal of effort from engineers an...
ICDT
1999
ACM
15 years 1 months ago
1999
ACM
Abstract. In this paper we present a new approach for studying aggregations in the context of database query languages. Starting from a broad de nition of aggregate function, we ad...