<br><font size=2 face="sans-serif">A 90 minute tutorial on the COIN-OR
Branch and Cut (CBC) code is schedule at </font>
<br><font size=2 face="sans-serif">INFORMS Annual Meeting, Weds, Nov 16
from 1:30-3PM. </font>
<br>
<br><font size=2 face="sans-serif">If you're planning to attend, what do
you want to get out of it? </font>
<br><font size=2 face="sans-serif"> -- Is there an existing feature
of CBC you've been wanting explained? </font>
<br><font size=2 face="sans-serif"> -- Is there something you want
to implement in CBC yourself, but need a bit of help to get started?</font>
<br><font size=2 face="sans-serif"> -- Is there a capability you
want to have in CBC, but want someone else to put it in there for you?
</font>
<br>
<br><font size=2 face="sans-serif">Write back to the list or off-line.
Let us know.</font>
<br>
<br><font size=2 face="sans-serif">Here's some of the things that we *could*
cover, just to get your thoughts flowing.... </font>
<br><font size=2 face="sans-serif">Robin</font>
<br>
<br><font size=2 face="sans-serif">1. Simple CBC </font>
<br><font size=2 face="sans-serif">- e.g., how to invoke the executable
</font>
<br><font size=2 face="sans-serif">- e.g., how to re-use simple drivers.
</font>
<br><font size=2 face="sans-serif">- e.g., what parameters exists and how
to play around with them</font>
<br>
<br><font size=2 face="sans-serif">2. More serious use of CBC's "building
blocks"</font>
<br><font size=2 face="sans-serif">- e.g., creating your own heuristics</font>
<br><font size=2 face="sans-serif">- e.g., creating your own branching
variable</font>
<br>
<br><font size=2 face="sans-serif">3. How do I.....</font>
<br><font size=2 face="sans-serif">- e.g., solve a series of IPs to generate
a predictably good solution</font>
<br><font size=2 face="sans-serif">- e.g., reduced cost fixing (before
going into CBC)</font>
<br>
<br><font size=2 face="sans-serif">4. Discussion of existing features in
CBC </font>
<br><font size=2 face="sans-serif">- e.g., Feasibility Pump Heuristic </font>
<br>
<br><font size=2 face="sans-serif">5. Discussion on desired features</font>
<br><font size=2 face="sans-serif">- e.g, "all different" branching
in CBC (or put it in as a cut-generator as well, as a special type
of "probing"...)</font>
<br><font size=2 face="sans-serif"><br>
----------------------------------------------------------------------------------<br>
Robin Lougee-Heimer<br>
IBM TJ Watson Research Center<br>
1101 Kitchawan Road, Yorktown Heights, NY 10598<br>
ph: 914-945-3032 fax: 914-945-3434 <br>
robinlh@us.ibm.com<br>
http://www.coin-or.org<br>
<br>
</font>