Restoring CSP Satisfiability with MaxSAT
نویسندگان
چکیده
منابع مشابه
Restoring CSP Satisfiability with MaxSAT
The extraction of a Minimal Unsatisfiable Core (MUC) in a Constraint Satisfaction Problem (CSP) aims to identify a subset of constraints that make a CSP instance unsatisfiable. Recent work has addressed the identification of a Minimal Set of Unsatisfiable Tuples (MUST) in order to restore the CSP satisfiability with respect to that MUC. A two-step algorithm has been proposed: first, a MUC is id...
متن کاملMaximum Satisfiability Using Core-Guided MaxSAT Resolution
Core-guided approaches to solving MAXSAT have proved to be effective on industrial problems. These approaches solve a MAXSAT formula by building a sequence of SAT formulas, where in each formula a greater weight of soft clauses can be relaxed. The soft clauses are relaxed via the addition of blocking variables, and the total weight of soft clauses that can be relaxed is limited by placing const...
متن کاملSolving (Weighted) Partial MaxSAT through Satisfiability Testing
Recently, Fu and Malik described an unweighted Partial MaxSAT solver based on successive calls to a SAT solver. At the kth iteration the SAT solver tries to certify that there exist an assignment that satisfies all but k clauses. Later Marques-Silva and Planes implemented and extended these ideas. In this paper we present and implement two Partial MaxSAT solvers and the weighted variant of one ...
متن کاملFinite CSP Solvers for Modal Satisfiability
We present a novel encoding of modal satisfiability problems as Constraint Satisfaction Problems. We allow the domains of the resulting constraints to contain other values than just the Boolean 0 or 1, and add various constraints to reason about these values. This modelling is pivotal to speeding up the performance of our constraint-based procedure for checking modal satisfiability in Constrain...
متن کاملSAT-Based versus CSP-Based Constraint Weighting for Satisfiability
Recent research has focused on bridging the gap between the satisfiability (SAT) and constraint satisfaction problem (CSP) formalisms. One approach has been to develop a many-valued SAT formula (MV-SAT) as an intermediate paradigm between SAT and CSP, and then to translate existing highly efficient SAT solvers to the MV-SAT domain. Experimental results have shown this approach can achieve signi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Fundamenta Informaticae
سال: 2011
ISSN: 0169-2968
DOI: 10.3233/fi-2011-402