654 search results - page 38 / 131 » Complexity of Answering Queries Using Materialized Views |
103
Voted
GEOINFO
2004
15 years 4 months ago
2004
: Nowadays, the database characteristics, such as the huge volume of data, the complexity of the queries, and even the data availability, can demand minutes or hours to process a q...
225
Voted
ICDE
2006
IEEE
16 years 4 months ago
2006
IEEE
Graph reachability is fundamental to a wide range of applications, including XML indexing, geographic navigation, Internet routing, ontology queries based on RDF/OWL, etc. Many ap...
216
Voted
ICDE
2009
IEEE
16 years 4 months ago
2009
IEEE
Materializing results from complex aggregation queries helps to significantly improve response times in OLAP servers. This problem is known as the view selection problem: choosing ...
123
Voted
ICCV
2003
IEEE
16 years 4 months ago
2003
IEEE
We derive a new class of photometric invariants that can be used for a variety of vision tasks including lighting invariant material segmentation, change detection and tracking, a...
120
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SIGMOD
1995
ACM
15 years 6 months ago
1995
ACM
We study the problem of e cient maintenance of materialized views that may contain duplicates. This problem is particularly important when queries against such views involve aggre...