#17712: Adds memoization to the branch and bound for vertex separation
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Reporter: dcoudert | Owner:
Type: enhancement | Status: new
Priority: minor | Milestone: sage-6.5
Component: graph theory | Resolution:
Keywords: | Merged in:
Authors: David Coudert | Reviewers:
Report Upstream: N/A | Work issues:
Branch: public/17112 | Commit:
Dependencies: #17711 | Stopgaps:
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Changes (by dcoudert):
* dependencies: => #17711
* branch: => public/17112
Old description:
> This patch adds to the branch and bound algorithm for the vertex
> separation (#17647) a memoization tool for storing prefixes as proposed
> in [CMN14]. This can significantly speed up the computation time.
>
> Reference:
> [CMN14] D. Coudert, D. Mazauric, N. Nisse. *Experimental Evaluation of a
> Branch and Bound Algorithm for computing Pathwidth*. In SEA'13, LNCS vol.
> 8504, pp.46-58, 2014.
New description:
This patch adds to the branch and bound algorithm for the vertex
separation (#17647) a kind of memoization tool for storing prefixes as
proposed in [CMN14]. This can significantly reduce the number of nodes of
the branch-and-bound tree to consider.
Reference:
[CMN14] D. Coudert, D. Mazauric, N. Nisse. *Experimental Evaluation of a
Branch and Bound Algorithm for computing Pathwidth*. In SEA'13, LNCS vol.
8504, pp.46-58, 2014.
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Ticket URL: <http://trac.sagemath.org/ticket/17712#comment:1>
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