Results 31 to 40 of about 5,971,608 (284)

Binarisation for Valued Constraint Satisfaction Problems [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2017
Subsumes 1507 ...
David A. Cohen   +5 more
openaire   +8 more sources

Linear Datalog and Bounded Path Duality of Relational Structures [PDF]

open access: yesLogical Methods in Computer Science, 2005
In this paper we systematically investigate the connections between logics with a finite number of variables, structures of bounded pathwidth, and linear Datalog Programs.
Victor Dalmau
doaj   +1 more source

Equivalence Constraint Satisfaction Problems.

open access: yesProceedings of CSL, 2012
The following result for finite structures Gamma has been conjectured to hold for all countably infinite omega-categorical structures Gamma: either the model-complete core Delta of Gamma has an expansion by finitely many constants such that the pseudovariety generated by its polymorphism algebra contains a two-element algebra all of whose operations ...
Manuel Bodirsky, Michal Wrona
openaire   +4 more sources

Constraint Satisfaction Problems on Intervals and Lengths [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2004
Summary: We study interval-valued Constraint Satisfaction Problems (CSPs), in which the aim is to find an assignment of intervals to a given set of variables subject to constraints on the relative positions of intervals. Many well-known problems such as INTERVAL GRAPH RECOGNITION and INTERVAL SATISFIABILITY can be considered as examples of such CSPs ...
Andrei A. Krokhin   +2 more
openaire   +4 more sources

On amenability of constraint satisfaction problems

open access: yesCoRR, 2020
Recent results show that a constraint satisfaction problem (CSP) defined over rational numbers with their natural ordering has a solution if and only if it has a definable solution. The proof uses advanced results from topology and modern model theory. The aim of this paper is threefold.
openaire   +3 more sources

Discrete Temporal Constraint Satisfaction Problems [PDF]

open access: yesJournal of the ACM, 2018
A discrete temporal constraint satisfaction problem is a constraint satisfaction problem (CSP) over the set of integers whose constraint language consists of relations that are first-order definable over the order of the integers.
Manuel Bodirsky   +2 more
openaire   +6 more sources

Dualities for Constraint Satisfaction Problems [PDF]

open access: yes, 2008
In a nutshell, a duality for a constraint satisfaction problem equates the existence of one homomorphism to the non-existence of other homomorphisms. In this survey paper, we give an overview of logical, combinatorial, and algebraic aspects of the following forms of duality for constraint satisfaction problems: finite duality, bounded pathwidth duality,
Andrei A. Bulatov   +2 more
openaire   +2 more sources

Using cooperative coevolution in large-scale black-box constraint satisfaction problems [PDF]

open access: yesITM Web of Conferences
Solving constrained large-scale global optimization problems poses a challenging task. In these problems with constraints, when the number of variables is measured in the thousands, when the constraints are presented in the form of a black box, and ...
Vakhnin Aleksei, Novikov Zakhar
doaj   +1 more source

Argumentation Frameworks as Constraint Satisfaction Problems [PDF]

open access: yesAnnals of Mathematics and Artificial Intelligence, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Leila Amgoud, Caroline Devred
openaire   +2 more sources

An invitation to the promise constraint satisfaction problem

open access: yesACM SIGLOG News, 2022
The study of the complexity of the constraint satisfaction problem (CSP), centred around the Feder-Vardi Dichotomy Conjecture, has been very prominent in the last two decades. After a long concerted effort and many partial results, the Dichotomy Conjecture has been proved in 2017 independently by Bulatov and Zhuk.
Andrei A. Krokhin, Jakub Oprsal
openaire   +3 more sources

Home - About - Disclaimer - Privacy