9683 search results - page 512 / 1937 » Predicting query performance |
297
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SSD
2009
Springer
16 years 1 months ago
2009
Springer
The range nearest-neighbor (NN) query is an important query type in location-based services, as it can be applied to the case that an NN query has a spatial region, instead of a lo...
235
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SIGMOD
2011
ACM
14 years 10 months ago
2011
ACM
Probabilistic database systems have successfully established themselves as a tool for managing uncertain data. However, much of the research in this area has focused on efficient...
326
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ICDE
2002
IEEE
16 years 8 months ago
2002
IEEE
We study the problem of query optimization in federated relational database systems. The nature of federated databases explicitly decouples many aspects of the optimization proces...
197
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KDD
2005
ACM
16 years 7 months ago
2005
ACM
This paper presents a novel approach for using clickthrough data to learn ranked retrieval functions for web search results. We observe that users searching the web often perform ...
286
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POPL
2007
ACM
16 years 7 months ago
2007
ACM
Transparent persistence promises to integrate programming languages and databases by allowing procedural programs to access persistent data with the same ease as non-persistent da...