620 search results - page 45 / 124 » Algorithms for Rewriting Aggregate Queries Using Views |
122
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JIPS
2006
15 years 3 months ago
2006
: In order to acquire a precise and quick response to an analytical query, proper selection of the views to materialize in the data warehouse is crucial. In traditional view select...
272
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SIGMOD
2005
ACM
16 years 4 months ago
2005
ACM
Given a set of objects P and a query point q, a k nearest neighbor (k-NN) query retrieves the k objects in P that lie closest to q. Even though the problem is well-studied for sta...
161
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FLOPS
2010
Springer
15 years 10 months ago
2010
Springer
We present a general framework for generating SQL query test cases using Constraint Logic Programming. Given a database schema and a SQL view defined in terms of other views and s...
132
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PVLDB
2010
15 years 2 months ago
2010
Independence analysis is the problem of determining whether an update affects the result of a query, e.g. a constraint or materialized view. We develop a new, modular framework fo...
125
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GIS
2010
ACM
15 years 2 months ago
2010
ACM
This paper proposes an efficient, decentralized algorithm for determining the topological relationship between two regions monitored by a geosensor network. Many centralized algo...