Justyna Petke's Bridging Constraint Satisfaction and Boolean Satisfiability PDF

By Justyna Petke

ISBN-10: 3319218093

ISBN-13: 9783319218090

ISBN-10: 3319218107

ISBN-13: 9783319218106

This booklet presents an important step in the direction of bridging the components of Boolean satisfiability and constraint delight by way of answering the query why SAT-solvers are effective on convinced periods of CSP cases that are not easy to resolve for normal constraint solvers. the writer additionally offers theoretical purposes for selecting a selected SAT encoding for a number of vital periods of CSP instances.

Boolean satisfiability and constraint pride emerged independently as new fields of computing device technological know-how, and diversified fixing strategies became regular for challenge fixing within the components. although any propositional formulation (SAT) might be considered for instance of the overall constraint pride challenge (CSP), the consequences of this connection have purely been studied within the previous couple of years.

The publication may be important for researchers and graduate scholars in man made intelligence and theoretical computing device technology.

Show description

Read Online or Download Bridging Constraint Satisfaction and Boolean Satisfiability PDF

Best machine theory books

Download PDF by Jose L. Zalabardo: Introduction To The Theory Of Logic

Advent to the idea of good judgment offers a rigorous advent to the elemental suggestions and result of modern common sense. It additionally offers, in unhurried chapters, the mathematical instruments, often from set concept, which are had to grasp the technical features of the topic. equipment of definition and facts also are mentioned at size, with specified emphasis on inductive definitions and proofs and recursive definitions.

Download e-book for iPad: Innovations in Applied Artificial Intelligence: 18th by Floriana Esposito

This ebook constitutes the refereed lawsuits of the 18th foreign convention on business and Engineering functions of man-made Intelligence and professional platforms, IEA/AIE 2005, held in Bari, Italy, in June 2005. The a hundred and fifteen revised complete papers offered including invited contributions have been conscientiously reviewed and chosen from 271 submissions.

Download e-book for kindle: Introduction to Automata Theory, Languages, and Computation, by John E. Hopcroft / Rajeev Motwani / Jeffrey D. Ullman

It's been greater than two decades on account that this vintage e-book on formal languages, automata conception, and computational complexity was once first released. With this long-awaited revision, the authors proceed to give the speculation in a concise and easy demeanour, now with an eye fixed out for the sensible functions.

Download PDF by Michel Goemans, Klaus Jansen, Jose D.P. Rolim, Luca Trevisan: Approximation, Randomization, and Combinatorial

This booklet constitutes the joint refereed court cases of the 4th foreign Workshop on Approximation Algorithms for Optimization difficulties, APPROX 2001 and of the fifth foreign Workshop on Ranomization and Approximation thoughts in laptop technological know-how, RANDOM 2001, held in Berkeley, California, united states in August 2001.

Additional resources for Bridging Constraint Satisfaction and Boolean Satisfiability

Example text

8. To generate solvable connectedrow-convex CSP instances, we selected a random assignment to all of the variables, and then generated random inequalities of the form above, keeping only those that were satisfied by this fixed assignment. This ensured that the system of inequalities had at least one solution. 5. On this simple set of instances all solvers performed very well, although Minion was noticeably slightly slower. It is worth mentioning that most of these instances were essentially solved at the translation stage.

Divide X into disjoint subsets Xi . If ˆ forces exactly one of x 2 Xi to be satisfied for each Xi , then ˆ is a sparse encoding of some CSP P. V W Proof Let ˆ0 D ˆ ^ Xi 2X . x2Xi x/. 6 and the proof follows. 2 The log encoding The log encoding [Wal00] introduces a Boolean variable for each bit in the value of a CSP variable. For instance, a variable v with domain f0; 1; 2; 3g will be encoded using two Boolean variables, xv0 and xv1 . In this case the Boolean assignment (xv0 D False, xv1 D True) corresponds to the CSP assignment v D 2.

Even though a lot of information about the original CSP instance is usually lost at the translation stage and a large set of propositional clauses is produced, SAT-solvers sometimes outperform conventional CSP-solvers on such instances (see Chapter 3). Furthermore, SAT-solvers often perform well even on instances that were encoded using the most naive encoding (called the direct encoding, see below). In an attempt to compare various solving techniques used for CSP and SAT several different ways of encoding a CSP instance as a propositional formula have been proposed.

Download PDF sample

Bridging Constraint Satisfaction and Boolean Satisfiability by Justyna Petke


by James
4.2

Rated 4.80 of 5 – based on 47 votes