sci.op-research

Ok ok ... I think your previous answer should be enough.
However I wonder why the LazyCutCallback alone is not enough?
Shouldn't it help us to add feasibility cut to a branch-and-cut (in
opposition to strengthening cuts) ?
The problem might be that it consider integer solution as feasible before
testing new cuts, is it ?
Cheers.

Paul Rubin wrote:
>> By the way, could you give me your code (as I'm really new with specific
>> branch-and-cut that might help), especially if it is in Java.
>
>It's not really ready for public consumption yet, and I'm also a bit
>leery about releasing it while I'm still working on papers that will use
>it -- don't want to help someone else beat me to the publishing punch,
>as it were.
>
>I'm considering proposing it as a COIN project, but that would entail
>substantial revisions (to make it solver-agnostic, among other things),
>and so it's on hold until I get substantial free time.
>
>If you want to contact me off-list and describe your project, I can make
>a better determination of whether my code in its current state would be
>a useful guide, and whether I'd be fostering competition by sharing it.
> (I'm in a business school. We're big on anti-competitive practices. :-) )
>
>/Paul

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