 
Name  data_2pm_55_55.dimacs 
Classification  ncbcd2 
Problem type  graphpart 
Description  Quadratic model for graph partitioning instance data_2pm_55_55.dimacs 
 
Objective sense  min 
Variables  76 (75 binary, 0 general integer, 1 continuous) 
Nonlinear variables  1 
Constraints  25 
Nonlinear constraints  1 
Linear nonzeros  51 
Nonlinear nonzeros  151 
 
Download  data_2pm_55_55.dimacs.pip.gz data_2pm_55_55.dimacs.gms.gz data_2pm_55_55.dimacs.mod.gz data_2pm_55_55.dimacs.zpl.gz 
Best known solution  
Best known objective  20 
Best known bound  20 
 
Originator  Bissan Ghaddar, Miguel Anjos, and Frauke Liers 
Formulator  Marc Pfetsch 
Donator  Marc Pfetsch 
 
References 
GhaddarAnjosLiers09

Links 

 
Additional information  This is a quadratic model for the graph partitioning problem. The
graphs are taken from the publication of Ghaddar et al. We used 3
parts of the partition to generate the quadratic instances. The model
assigns each node to one of the three parts. Hence, the model is
symmetric, which should probably be used in a solution algorithm.

 