1238 search results - page 29 / 248 » View-based query containment |
78
Voted
PVLDB
2010
14 years 8 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...
111
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PAMI
2012
13 years 3 days ago
2012
—Web-scale image search engines (e.g. Google Image Search, Bing Image Search) mostly rely on surrounding text features. It is difficult for them to interpret users’ search int...
105
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DLOG
2008
15 years 1 hour ago
2008
We have shown recently that, in extensions of ALC that involve inverse roles, conjunctive query answering is harder than satisfiability: it is 2-ExpTime-complete in general and NEx...
126
Voted
ICDE
2011
IEEE
14 years 1 months ago
2011
IEEE
— As sensors continue to proliferate, the capabilities of effectively querying not only sensor data but also its metadata becomes important in a wide range of applications. This ...
68
Voted
SIGMOD
2005
ACM
15 years 3 months ago
2005
ACM
Appropriately selected materialized views (also called indexed views) can speed up query execution by orders of magnitude. Most database systems limit support for materialized vie...