Divide and conquer: Towards faster pseudo-boolean solving

Publikation: Bidrag til bog/antologi/rapportKonferencebidrag i proceedingsForskningfagfællebedømt

The last 20 years have seen dramatic improvements in the performance of algorithms for Boolean satisfiability-so-called SAT solvers-and today conflict-driven clause learning (CDCL) solvers are routinely used in a wide range of application areas. One serious short-coming of CDCL, however, is that the underlying method of reasoning is quite weak. A tantalizing solution is to instead use stronger pseudo-Boolean (PB) reasoning, but so far the promise of exponential gains in performance has failed to materialize-the increased theoretical strength seems hard to harness algorithmically, and in many applications CDCL-based methods are still superior. We propose a modified approach to pseudo-Boolean solving based on division instead of the saturation rule used in [Chai and Kuehlmann'05] and other PB solvers. In addition to resulting in a stronger conflict analysis, this also improves performance by keeping integer coefficient sizes down, and yields a very competitive solver as shown by the results in the Pseudo-Boolean Competitions 2015 and 2016.

OriginalsprogEngelsk
TitelProceedings of the 27th International Joint Conference on Artificial Intelligence, IJCAI 2018
RedaktørerJerome Lang
Antal sider9
ForlagInternational Joint Conferences on Artificial Intelligence
Publikationsdato2018
Sider1291-1299
ISBN (Elektronisk)9780999241127
DOI
StatusUdgivet - 2018
Eksternt udgivetJa
Begivenhed27th International Joint Conference on Artificial Intelligence, IJCAI 2018 - Stockholm, Sverige
Varighed: 13 jul. 201819 jul. 2018

Konference

Konference27th International Joint Conference on Artificial Intelligence, IJCAI 2018
LandSverige
ByStockholm
Periode13/07/201819/07/2018
SponsorInternational Joint Conferences on Artifical Intelligence (IJCAI)
NavnIJCAI International Joint Conference on Artificial Intelligence
Vol/bind2018-July
ISSN1045-0823

ID: 251867419