619 search results - page 8 / 124 » Query Planning in Infomaster |
CIDM
2007
IEEE
15 years 6 months ago
2007
IEEE
— To generate plans for collecting data for data mining, an important problem is information volatility during planning: the information needed by the planning system may change ...
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ICDE
2000
IEEE
16 years 1 months ago
2000
IEEE
In information-integration systems, sources may have diverse and limited query capabilities. In this paper we show that because sources have restrictions on retrieving their infor...
PVLDB
2008
14 years 11 months ago
2008
XTCcmp, the XQuery Compiler of a native XML database system, extends Starburst's well-known Query Graph Model to serve as an internal representation and basis for query restr...
SIGMOD
2002
ACM
14 years 11 months ago
2002
ACM
Traditional query processors generate full, accurate query results, either in batch or in pipelined fashion. We argue that this strict model is too rigid for exploratory queries o...
VLDB
2004
ACM
15 years 5 months ago
2004
ACM
Progressive Optimization (POP) is a technique to make query plans robust, and minimize need for DBA intervention, by repeatedly re-optimizing a query during runtime if the cardina...