765 search results - page 40 / 153 » Query Processing over Incomplete Autonomous Databases |
VLDB
2004
ACM
15 years 3 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,...
DEXAW
2005
IEEE
15 years 3 months ago
2005
IEEE
In this paper we present a conceptual view on the incorporation of cognitive processing capabilities in future generation computer systems. We argue that cognition is at the heart...
109
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CIKM
2010
Springer
14 years 8 months ago
2010
Springer
Recently, several research efforts have addressed answering skyline queries efficiently over large datasets. However, this research lacks methods to compute these queries over un...
PVLDB
2008
14 years 9 months ago
2008
Unlike traditional database queries, keyword queries do not adhere to predefined syntax and are often dirty with irrelevant words from natural languages. This makes accurate and e...
156
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VLDB
2009
ACM
15 years 10 months ago
2009
ACM
We consider the problem of using sampling to estimate the result of an aggregation operation over a subset-based SQL query, where a subquery is correlated to an outer query by a NO...