[SCIP] clique lifting
Marc Pfetsch
pfetsch at mathematik.tu-darmstadt.de
Tue Oct 11 23:35:28 CEST 2016
Dear James,
this parameter turns on the combination of smaller set
packing/partitioning constraints into larger ones, e.g., if several edge
constraints from a clique (the edge constraints are deleted and only the
clique constraint is kept). Thus, some constraints disappear, but new
ones are generated.
Best
Marc
On 10.10.2016 16:09, James Cussens wrote:
> Dear SCIPers.
>
> Is there somewhere where I can find out more about setting
>
> constraints/setppc/cliquelifting = TRUE
>
> When I use this (non-default) value for this parameter it seems as if
> rows in the LP relaxation corresponding to some (not all) of my set
> partitioning constraints disappear.
>
> James
>
> --
> James Cussens
> Dept of Computer Science &
> York Centre for Complex Systems Analysis
> Room 326, The Hub, Deramore Lane Tel +44 (0)1904 325371
> University of York Fax +44
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> York YO10 5GE, UK
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>
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