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CORR
2011
Springer
170views Education» more  CORR 2011»
13 years 3 months ago
On the Decidability of Connectedness Constraints in 2D and 3D Euclidean Spaces
We investigate (quantifier-free) spatial constraint languages with equality, contact and connectedness predicates, as well as Boolean operations on regions, interpreted over low-...
Roman Kontchakov, Yavor Nenov, Ian Pratt-Hartmann,...
ICLP
2010
Springer
14 years 2 days ago
Tight Semantics for Logic Programs
We define the Tight Semantics (TS), a new semantics for all NLPs complying with the requirements of: 2-valued semantics; preserving the models of SM; guarantee of model existence...
Luís Moniz Pereira, Alexandre Miguel Pinto
LCC
1994
213views Algorithms» more  LCC 1994»
14 years 8 days ago
Linear Constraint Query Languages: Expressive Power and Complexity
We give an AC0 upper bound on the complexity of rst-oder queries over (in nite) databases de ned by restricted linear constraints. This result enables us to deduce the non-expressi...
Stéphane Grumbach, Jianwen Su, Christophe T...
ILP
2004
Springer
14 years 1 months ago
Macro-Operators Revisited in Inductive Logic Programming
For the last ten years a lot of work has been devoted to propositionalization techniques in relational learning. These techniques change the representation of relational problems t...
Érick Alphonse
APPT
2003
Springer
14 years 1 months ago
Scheduling Outages in Distributed Environments
This paper focuses on the problem of scheduling outages to computer systems in complex distributed environments. The interconnected nature of these systems makes scheduling global ...
Anthony Butler, Hema Sharda, David Taniar