Title
Variable ordering for decision diagrams: A portfolio approach
Abstract
Relaxed decision diagrams have been successfully applied to solve combinatorial optimization problems, but their performance is known to strongly depend on the variable ordering. We propose a portfolio approach to selecting the best ordering among a set of alternatives. We consider several different portfolio mechanisms: a static uniform time-sharing portfolio, an offline predictive model of the single best algorithm using classifiers, a low-knowledge algorithm selection, and a dynamic online time allocator. As a case study, we compare and contrast their performance on the graph coloring problem. We find that on this problem domain, the dynamic online time allocator provides the best overall performance.
Year
DOI
Venue
2022
10.1007/s10601-021-09325-6
Constraints
Keywords
DocType
Volume
Decision diagrams, Graph coloring, Variable ordering
Journal
27
Issue
ISSN
Citations 
1
1383-7133
0
PageRank 
References 
Authors
0.34
8
2
Name
Order
Citations
PageRank
Anthony Karahalios100.34
Willem Jan Van Hoeve251739.54