2145 search results - page 141 / 429 » Answering Queries Using Views |
129
Voted
SIGMOD
1995
ACM
15 years 7 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...
236
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ICDE
2007
IEEE
16 years 5 months ago
2007
IEEE
Applications such as traffic management and resource scheduling for location-based services commonly need to identify regions with high concentrations of moving objects. Such quer...
105
Voted
FOCS
2008
IEEE
15 years 10 months ago
2008
IEEE
We show that the NP-Complete language 3SAT has a PCP verifier that makes two queries to a proof of almost-linear size and achieves sub-constant probability of error o(1). The ver...
140
Voted
MDM
2007
Springer
15 years 9 months ago
2007
Springer
This work tackles the problem of answer-aggregation for continuous spatio-temporal range queries in distributed settings. We assume a grid-like coverage of the spatial universe of...
123
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PCI
2009
Springer
15 years 8 months ago
2009
Springer
—Storage management in wireless sensor networks is an area that has started to attract significant attention, and several methods have been proposed, such as Local Storage (LS),...