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DBPL
2007
Springer
13 years 11 months ago
2007
Springer
Traditionally, infinite databases were studied as a data model for queries that may contain function symbols (since functions may be expressed as infinite relations). Recently, th...
DKE
2010
13 years 7 months ago
2010
We describe the Consistency Extractor System (ConsEx) that computes consistent answers to Datalog queries with negation posed to relational databases that may be inconsistent with...
CIKM
2006
Springer
13 years 11 months ago
2006
Springer
Skyline queries compute the set of Pareto-optimal tuples in a relation, i.e., those tuples that are not dominated by any other tuple in the same relation. Although several algorit...
GIS
2004
ACM
14 years 8 months ago
2004
ACM
In the geometric data model [6], spatio-temporal data are modelled as a finite collection of triangles that are transformed by time-dependent affinities. To facilitate querying an...
ATAL
2005
Springer
14 years 1 months ago
2005
Springer
There are many situations where an agent can perform one of several sets of actions in responses to changes in its environment, and the agent chooses to perform the set of actions...