186 search results - page 15 / 38 » Queries and materialized views on probabilistic databases |
VLDB
2004
ACM
15 years 2 months ago
2004
ACM
In this paper, we address the maintenance of spatial semijoin queries over continuously moving points, where points are modeled as linear functions of time. This is analogous to t...
161
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SIGMOD
2006
ACM
15 years 9 months ago
2006
ACM
We study the problem of finding efficient equivalent viewbased rewritings of relational queries, focusing on query optimization using materialized views under the assumption that ...
166
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VLDB
2007
ACM
15 years 9 months ago
2007
ACM
Emerging applications such as personalized portals, enterprise search and web integration systems often require keyword search over semi-structured views. However, traditional inf...
VLDB
2005
ACM
15 years 3 months ago
2005
ACM
Prior work on computing queries from materialized views has focused on views defined by expressions consisting of selection, projection, and inner joins, with an optional aggrega...
VLDB
2002
ACM
14 years 9 months ago
2002
ACM
An increasing number of applications use XML data published from relational databases. For speed and convenience, such applications routinely cache this XML data locally and acces...