2217 search results - page 5 / 444 » Rank-aware Query Optimization |
SSDBM
2010
IEEE
15 years 4 months ago
2010
IEEE
Many applications require to determine the k-nearest neighbors for multiple query points simultaneously. This task is known as all-(k)-nearest-neighbor (AkNN) query. In this paper,...
158
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SIGMOD
2005
ACM
15 years 11 months ago
2005
ACM
This paper introduces RankSQL, a system that provides a systematic and principled framework to support efficient evaluations of ranking (top-k) queries in relational database syst...
PVLDB
2010
14 years 10 months ago
2010
Range queries based on L1 distance are a common type of queries in multimedia databases containing feature vectors. We propose a novel approach that transforms the feature space i...
101
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DBISP2P
2003
Springer
15 years 4 months ago
2003
Springer
Databases have employed a schema-based approach to store and retrieve structured data for decades. For peer-to-peer (P2P) networks, similar approaches are just beginning to emerge,...
163
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VLDB
2007
ACM
15 years 12 months ago
2007
ACM
An optimization query asks for one or more data objects that maximize or minimize some function over the data set. We propose a general class of queries, model-based optimization ...