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The Cartographer
PACE Solver Description: Bute-Plus: A Bottom-Up Exact Solver for Treedepth
June 17, 2020 Β· Declared Dead Β· π arXiv.org
"No code URL or promise found in abstract"
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Authors
James Trimble
arXiv ID
2006.09912
Category
cs.DS: Data Structures & Algorithms
Cross-listed
cs.DM
Citations
0
Venue
arXiv.org
Last Checked
5 months ago
Abstract
This note introduces Bute-Plus, an exact solver for the treedepth problem. The core of the solver is a positive-instance driven dynamic program that constructs an elimination tree of minimum depth in a bottom-up fashion. Three features greatly improve the algorithm's run time. The first of these is a specialised trie data structure. The second is a domination rule. The third is a heuristic presolve step can quickly find a treedepth decomposition of optimal depth for many instances.
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