27756 search results - page 190 / 5552 » Process Query Systems |
129
Voted
PODS
2004
ACM
16 years 2 months ago
2004
ACM
The problem of deciding query containment has important applications in classical query optimization and heterogeneous database systems. Query containment is undecidable for unres...
149
Voted
CLEF
2009
Springer
15 years 3 months ago
2009
Springer
In this study, we describe our system at the Intellectual Property track of the 2009 CrossLanguage Evaluation Forum campaign (CLEF-IP). The CLEF-IP track addressed prior art searc...
106
Voted
VLDB
2004
ACM
15 years 8 months ago
2004
ACM
We introduce an auditing framework for determining whether a database system is adhering to its data disclosure policies. Users formulate audit expressions to specify the (sensiti...
121
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JSS
2008
15 years 2 months ago
2008
Many state-of-the-art selectivity estimation methods use query feedback to maintain histogram buckets, thereby using the limited memory efficiently. However, they are "reacti...
120
Voted
IPM
2007
15 years 2 months ago
2007
The work described here initially formed part of a triangulation exercise to establish the effectiveness of the Query Term Order algorithm. The methodology produced subsequently p...