6746 search results - page 403 / 1350 » Multimodal Database Query |
138
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VLDB
2004
ACM
15 years 10 months ago
2004
ACM
Adaptive query processing schemes attempt to reoptimize query plans during the course of query execution. A variety of techniques for adaptive query processing have been proposed,...
175
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IDEAS
2003
IEEE
15 years 10 months ago
2003
IEEE
In the past few years, much attention has been paid to the study of semistructured data, i.e., data with irregular, possibly unstable, and rapidly changing structure, and, in part...
154
Voted
VLDB
2001
ACM
15 years 9 months ago
2001
ACM
In this paper we propose a new framework for dynamic distributed query processing based on so-called HyperQueries which are essentially query evaluation sub-plans “sitting behin...
177
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SIGMOD
2000
ACM
15 years 9 months ago
2000
ACM
We investigate the problem of using materialized views to answer SQL queries. We focus on modern decision-support queries, which involve joins, arithmetic operations and other (po...
118
Voted
ICDT
1999
ACM
15 years 9 months ago
1999
ACM
In data integration systems, queries posed to a mediator need to be translated into a sequence of queries to the underlying data sources. In a heterogeneous environment, with sour...