620 search results - page 38 / 124 » Algorithms for Rewriting Aggregate Queries Using Views |
181
Voted
EUROCOLT
1999
Springer
15 years 8 months ago
1999
Springer
We consider algorithms for combining advice from a set of experts. In each trial, the algorithm receives the predictions of the experts and produces its own prediction. A loss func...
96
Voted
OTM
2005
Springer
15 years 9 months ago
2005
Springer
Abstract. Caching can highly improve performance of query processing in distributed databases. In this paper we show how this technique can be used in grid architecture where data ...
145
Voted
SIGMOD
2003
ACM
16 years 3 months ago
2003
ACM
Schema matching is a critical problem for integrating heterogeneous information sources. Traditionally, the problem of matching multiple schemas has essentially relied on finding ...
160
Voted
EWDW
1994
15 years 7 months ago
1994
For object-oriented databases we propose a new technique for optimizing queries containing method invocations. This technique is based on the definition of inverse methods and que...
134
Voted
IPSN
2005
Springer
15 years 9 months ago
2005
Springer
A wireless sensor network consists of a large number of small, resource-constrained devices and usually operates in hostile environments that are prone to link and node failures. ...