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AIPS
2009
13 years 11 months ago
Extended Goals for Composing Services
The ability to automatically compose Web Services is critical for realising more complex functionalities. Several proposals to use automated planning to deal with the problem of s...
Eirini Kaldeli, Alexander Lazovik, Marco Aiello
ECAI
2010
Springer
13 years 11 months ago
Restarts and Nogood Recording in Qualitative Constraint-based Reasoning
Abstract. This paper introduces restart and nogood recording techniques in the domain of qualitative spatial and temporal reasoning. Nogoods and restarts can be applied orthogonall...
Matthias Westphal, Stefan Wölfl, Jason Jingsh...
CIE
2008
Springer
13 years 10 months ago
First-Order Model Checking Problems Parameterized by the Model
We study the complexity of the model checking problem, for fixed models A, over certain fragments L of first-order logic, obtained by restricting which of the quantifiers and boole...
Barnaby Martin
CORR
2010
Springer
106views Education» more  CORR 2010»
13 years 10 months ago
Symmetry within Solutions
We define the concept of an internal symmetry. This is a symmety within a solution of a constraint satisfaction problem. We compare this to solution symmetry, which is a mapping b...
Marijn Heule, Toby Walsh
EJC
2010
13 years 10 months ago
Dualities in full homomorphisms
Abstract. In this paper we study dualities of graphs and, more generally, relational structures with respect to full homomorphisms, that is, mappings that are both edge- and non-ed...
Richard N. Ball, Jaroslav Nesetril, Ales Pultr