Solving Hybrid Boolean Constraints by Fourier Expansions and Continuous Optimization

Simple item page
dc.contributor.advisorVardi, Moshe Y
dc.creatorZhang, Zhiwei
dc.date.accessioned2020-06-05T17:30:39Z
dc.date.available2020-06-05T17:30:39Z
dc.date.created2020-05
dc.date.issued2020-06-04
dc.date.submittedMay 2020
dc.date.updated2020-06-05T17:30:39Z
dc.description.abstractThe Boolean SATisfiability problem (SAT) is of central importance in computer science. Although SAT is known to be NP-complete, progress on the engineering side---especially that of Conflict-Driven Clause Learning (CDCL) and Local Search SAT solvers---has been remarkable. Yet, while SAT solvers, aimed at solving industrial-scale benchmarks in Conjunctive Normal Form (CNF), have become quite mature, SAT solvers that are effective on other types of constraints (e.g., cardinality constraints and XORs) are less well studied; a general approach to handling non-CNF constraints is still lacking. In addition, previous work indicated that for specific classes of benchmarks, the running time of extant SAT solvers depends heavily on properties of the formula and details of encoding, instead of the scale of the benchmarks, which adds uncertainty to expectations of running time. To address the issues above, we design FourierSAT, an incomplete SAT solver based on Fourier analysis of Boolean functions, a technique to represent Boolean functions by multilinear polynomials. By such a reduction to continuous optimization, we propose an algebraic framework for solving systems consisting of different types of constraints. The idea is to leverage gradient information to guide the search process in the direction of local improvements. Due to characteristics of multilinear polynomials, this method owns some interesting theoretical guarantees. Empirical results demonstrate that a proof-of-concept implementation of FourierSAT combined with engineering tricks is more robust than other solvers on certain classes of benchmarks. We believe this work is a promising start of a new line of research on Boolean SAT and MaxSAT.
dc.format.mimetypeapplication/pdf
dc.identifier.citationZhang, Zhiwei. "Solving Hybrid Boolean Constraints by Fourier Expansions and Continuous Optimization." (2020) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/108781">https://hdl.handle.net/1911/108781</a>.
dc.identifier.urihttps://hdl.handle.net/1911/108781
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectSAT solving
dc.subjectMultilinear optimization
dc.subjectFourier analysis on Boolean functions
dc.titleSolving Hybrid Boolean Constraints by Fourier Expansions and Continuous Optimization
dc.typeThesis
dc.type.materialText
thesis.degree.departmentComputer Science
thesis.degree.disciplineEngineering
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
ZHANG-DOCUMENT-2020.pdf
Size:
2.42 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 2 of 2
No Thumbnail Available
Name:
PROQUEST_LICENSE.txt
Size:
5.84 KB
Format:
Plain Text
Description:
Download
No Thumbnail Available
Name:
LICENSE.txt
Size:
2.61 KB
Format:
Plain Text
Description:
Download
Collections
Rice University Electronic Theses and Dissertations