<div dir="ltr"><div><div><div><div><div><div><div>Hi,<br><br></div>Yes indeed Bonmin look like what I need. But on windows it's a nightmare to build. And binary distribution do not provide any release for Visual Studio x64.<br>
<br></div>Other project like:<br></div>- LaGO<br></div>- Couenne<br></div>- NLPAPI<br>...<br><br></div>Could provide a function to solve my MIQP ?<br><br></div>Thanks for you help<br><br>Soufiane<br><div><div><div><div><div>
<div><br></div></div></div></div></div></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">2013/10/17 Stefan Vigerske <span dir="ltr"><<a href="mailto:stefan@math.hu-berlin.de" target="_blank">stefan@math.hu-berlin.de</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
you asked for an alternative interfaces to do MIQP with Cbc, not whether Cbc can solve your problem.<br>
I never tried solving (convex) MIQPs with Cbc. Within COIN-OR, I would probably go with Bonmin.<span class="HOEnZb"><font color="#888888"><br>
<br>
Stefan</font></span><div class="HOEnZb"><div class="h5"><br>
<br>
On 10/17/2013 07:46 PM, soufiane khiat wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Cbc do not allow us to solve this kind of problem?<br>
Or any package on Coin-OR?<br>
<br>
Thanks<br>
<br>
Soufiane<br>
<br>
<br>
2013/10/17 Mike Steglich <<a href="mailto:mike.steglich@berlin.de" target="_blank">mike.steglich@berlin.de</a>><br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
An additional alternative for an open source MPL is CMPL (<a href="http://coliop.org" target="_blank">coliop.org</a>).<br>
<br>
Mike<br>
<br>
Am 17.10.2013 um 16:26 schrieb Stefan Vigerske:<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi,<br>
<br>
you might want to look into algebraic modeling languages then, e.g.,<br>
Pyomo, ZIMPL for open source, and<br>
AIMMS, AMPL, GAMS for commercial.<br>
<br>
Stefan<br>
<br>
<br>
On 10/16/2013 08:18 PM, soufiane khiat wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hello,<br>
<br>
I'm new on Optimization topic. I try to minimize:<br>
||Ax-b||_2<br>
Subject to a list of constraint {B_i, L_ij, E_ij}:<br>
B_i (each x_i could have a: no bound, min bound, max bound or both):<br>
min_i<=x_i<=max_i<br>
<br>
L_ij (with i != j, (i,j) On [1..N]):<br>
x_i + x_j = u_ij With u_ij = {0 OR 1}<br>
<br>
E_ij (with i != j, (i,j) On [1..N]):<br>
u_i >= x_i<br>
u_j >= x_j<br>
u_i + u_j <= 1 With (u_i, u_j) is Binary variable like u_ij on L_ij.<br>
<br>
I have no control on size of data, number of B_i, L_ij and E_ij it is<br>
</blockquote></blockquote>
only<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
a data.<br>
A is a Matrix NxM, x and b is a vector. So I would like to find best as<br>
possible x to satisfact this constraints.<br>
<br>
My question is, how can I fill a CbcModel to describ this problem<br>
</blockquote></blockquote>
without<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
*.mps file?<br>
It is possible to only provide a Matrix A and b?<br>
<br>
Thanks for you answers.<br>
<br>
Soufiane KHIAT<br>
Software Engineer<br>
<br>
<br>
<br>
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</blockquote>
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