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81
Voted
VLDB
2004
ACM
15 years 3 months ago
2004
ACM
When query optimizers erroneously assume that database columns are statistically independent, they can underestimate the selectivities of conjunctive predicates by orders of magni...
79
Voted
VLDB
2004
ACM
15 years 3 months ago
2004
ACM
Moments before the launch of every space vehicle, engineering discipline specialists must make a critical go/no-go decision. The cost of a false positive, allowing a launch in spi...
105
Voted
VLDB
2004
ACM
15 years 3 months ago
2004
ACM
In this paper, we address the problem of designing a scalable, accurate query processor for peerto-peer filesharing and similar distributed keyword search systems. Using a global...
71
Voted
VLDB
2004
ACM
15 years 3 months ago
2004
ACM
As CPUs become more powerful with Moore’s law and memory latencies stay constant, the impact of the memory access performance bottleneck continues to grow on relational operator...
VLDB
2004
ACM
15 years 3 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...