Results 31 to 40 of about 1,354,069 (285)

Discrete optimization using Quantum Annealing on sparse Ising models

open access: yesFrontiers in Physics, 2014
This paper discusses techniques for solving discrete optimization problems using quantumannealing. Practical issues likely to affect the computation include precision limitations, finitetemperature, bounded energy range, sparse connectivity, and small ...
Zhengbing eBian   +5 more
doaj   +1 more source

Applying quantum algorithms to constraint satisfaction problems [PDF]

open access: yesQuantum, 2019
Quantum algorithms can deliver asymptotic speedups over their classical counterparts. However, there are few cases where a substantial quantum speedup has been worked out in detail for reasonably-sized problems, when compared with the best classical ...
Earl Campbell   +2 more
doaj   +1 more source

On Classifying Continuous Constraint Satisfaction Problems [PDF]

open access: yesTheoretiCS
A continuous constraint satisfaction problem (CCSP) is a constraint satisfaction problem (CSP) with an interval domain $U \subset \mathbb{R}$. We engage in a systematic study to classify CCSPs that are complete of the Existential Theory of the Reals, i.e.
Tillmann Miltzow, Reinier F. Schmiermann
doaj   +1 more source

Tropically Convex Constraint Satisfaction [PDF]

open access: yesTheory of Computing Systems, 2017
A semilinear relation S is max-closed if it is preserved by taking the componentwise maximum. The constraint satisfaction problem for max-closed semilinear constraints is at least as hard as determining the winner in Mean Payoff Games, a notorious problem of open computational complexity.
Manuel Bodirsky, Marcello Mamino
openaire   +2 more sources

Narrowing Support Searching Range in Maintaining Arc Consistency for Solving Constraint Satisfaction Problems

open access: yesIEEE Access, 2017
Arc consistency is the most popular filtering technique for solving constraint satisfaction problems. Constraint check plays a central role in establishing arc consistency.
Hongbo Li
doaj   +1 more source

The complexity of global cardinality constraints [PDF]

open access: yesLogical Methods in Computer Science, 2010
In a constraint satisfaction problem (CSP) the goal is to find an assignment of a given set of variables subject to specified constraints. A global cardinality constraint is an additional requirement that prescribes how many variables must be assigned a ...
Andrei A. Bulatov, Daniel Marx
doaj   +1 more source

A Characterisation of First-Order Constraint Satisfaction Problems [PDF]

open access: yesLogical Methods in Computer Science, 2007
We describe simple algebraic and combinatorial characterisations of finite relational core structures admitting finitely many obstructions. As a consequence, we show that it is decidable to determine whether a constraint satisfaction problem is first ...
Benoit Larose   +2 more
doaj   +1 more source

Using Blocks for Constraint Satisfaction [PDF]

open access: yes, 1998
The assembly problem is the spatial joining of separate rigid bodies within a CAD/CAM-system. The solution to the assembly does not only need to contain one consistent instantiation, but also qualitative information. In particular, this covers the localization of redundancy and remaining degrees of freedom in the mechanism.
Seybold, Bernhard   +3 more
openaire   +2 more sources

A finer reduction of constraint problems to digraphs [PDF]

open access: yesLogical Methods in Computer Science, 2015
It is well known that the constraint satisfaction problem over a general relational structure A is polynomial time equivalent to the constraint problem over some associated digraph.
Jakub Bulín   +3 more
doaj   +1 more source

Global Constraints in Distributed Constraint Satisfaction and Optimization [PDF]

open access: yesThe Computer Journal, 2013
Peer ...
Bessiere, Christian   +3 more
openaire   +3 more sources

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