1497 search results - page 154 / 300 » Constraint Databases: A Survey |
152
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VLDB
2007
ACM
15 years 10 months ago
2007
ACM
An optimization query asks for one or more data objects that maximize or minimize some function over the data set. We propose a general class of queries, model-based optimization ...
SAC
2004
ACM
15 years 3 months ago
2004
ACM
The sequence mining problem consists in finding frequent sequential patterns in a database of time-stamped events. Several application domains require limiting the maximum tempor...
PODS
1999
ACM
15 years 2 months ago
1999
ACM
Despite advances in recent years in the area of mandatory access control in database systems, today's information repositories remain vulnerable to inference and data associa...
170
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ICDE
2009
IEEE
15 years 11 months ago
2009
IEEE
Many location-based services require rich and expressive query language support for filtering large amounts of information. In prominent location-based services thousands of conti...
162
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VLDB
2001
ACM
15 years 10 months ago
2001
ACM
Abstract In this paper we present a mechanism for approximately translating Boolean query constraints across heterogeneous information sources. Achieving the best translation is ch...