[Coin-discuss] SBB improvements

Edwin Straver estraver at frontsys.com
Fri Apr 2 11:52:53 EST 2004


I would still love to see range information on the dual values be available.
 
Greetings, Edwin Straver
 
 -----Original Message-----
From: coin-discuss-admin at www-124.southbury.usf.ibm.com
[mailto:coin-discuss-admin at www-124.southbury.usf.ibm.com] On Behalf Of John
J Forrest
Sent: Friday, April 02, 2004 8:48 AM
To: coin-discuss at www-124.southbury.usf.ibm.com
Subject: [Coin-discuss] SBB improvements




I may have time to get back to SBB.  Are there any requests for improvements
in any of the following areas? 

1) General improvements 
2) New heuristics to obtain solutions 
3) New cuts (well implementation of known cuts not at present in Cgl) 
4) New types of variables/sets e.g. special Ordered Sets of type 2.  For
instance I have already added a lotsizing variable for a particular project.


If you think improvements to CLP are more important, those suggestions will
also be welcomed. 

All will be as other demands on my time allow. 

John Forrest

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