448 search results - page 13 / 90 » Queries and Constraints on Semi-structured Data |
SSD
2007
Springer
15 years 3 months ago
2007
Springer
In this paper we study the evaluation of continuous constraint queries (CCQs) for spatiotemporal streams. A CCQ triggers an alert whenever a configuration of constraints between s...
150
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VLDB
2007
ACM
15 years 9 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 ...
HICSS
2006
IEEE
15 years 3 months ago
2006
IEEE
Networks of sensors arise naturally in many different fields, from industrial applications (e.g., monitoring of environmental parameters in a chemical plant) to surveillance appl...
ICDM
2008
IEEE
15 years 4 months ago
2008
IEEE
Selecting promising queries is the key to effective active learning. In this paper, we investigate selection techniques for the task of learning an equivalence relation where the ...
167
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SIGMOD
2005
ACM
15 years 9 months ago
2005
ACM
Although integrity constraints have long been used to maintain data consistency, there are situations in which they may not be enforced or satisfied. In this paper, we present Con...