128 search results - page 19 / 26 » Plan Selection Based on Query Clustering |
ICDE
2008
IEEE
14 years 9 months ago
2008
IEEE
We study the problem of computing query results with confidence values in ULDBs: relational databases with uncertainty and lineage. ULDBs, which subsume probabilistic databases, o...
CLEF
2009
Springer
13 years 5 months ago
2009
Springer
The ImageCLEF Photo Retrieval Task 2009 focused on image retrieval and diversity. A new collection was utilised in this task consisting of approximately half a million images with...
SSDBM
2003
IEEE
14 years 29 days ago
2003
IEEE
Relational index structures, as for instance the Relational Interval Tree, the Relational R-Tree, or the Linear Quadtree, support efficient processing of queries on top of existin...
WWW
2005
ACM
14 years 8 months ago
2005
ACM
Large web search engines have to answer thousands of queries per second with interactive response times. Due to the sizes of the data sets involved, often in the range of multiple...
ICDE
2008
IEEE
14 years 9 months ago
2008
IEEE
In this paper we explore database segmentation in the context of a column-store DBMS targeted at a scientific database. We present a novel hardware- and scheme-oblivious segmentati...