9683 search results - page 389 / 1937 » Predicting query performance |
258
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ICDE
2002
IEEE
16 years 8 months ago
2002
IEEE
The goal of a data integration system is to provide a uniform interface to a multitude of data sources. Given a user query formulated in this interface, the system translates it i...
202
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WWW
2009
ACM
16 years 7 months ago
2009
ACM
A pressing task during the unification process is to identify a user's vertical search intention based on the user's query. In this paper, we propose a novel method to p...
264
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VLDB
2007
ACM
16 years 7 months ago
2007
ACM
In large-scale distributed information systems, where participants are autonomous and have special interests for some queries, query allocation is a challenge. Much work in this c...
273
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SIGMOD
2009
ACM
16 years 7 months ago
2009
ACM
In order to enable extensibility, modern query optimizers typically leverage a transformation rule based framework. Testing individual rule correctness as well as correctness of r...
267
Voted
SIGMOD
2008
ACM
16 years 7 months ago
2008
ACM
Uncertain data is inherent in a few important applications such as environmental surveillance and mobile object tracking. Top-k queries (also known as ranking queries) are often n...