An exact algorithm for graph partitioning

  title={An exact algorithm for graph partitioning},
  author={William W. Hager and Dzung T. Phan and Hongchao Zhang},
  journal={Math. Program.},
An exact algorithm is presented for solving edge weighted graph partitioning problems. The algorithm is based on a branch and bound method applied to a continuous quadratic programming formulation of the problem. Lower bounds are obtained by decomposing the objective function into convex and concave parts and replacing the concave part by an affine underestimate. It is shown that the best affine underestimate can be expressed in terms of the center and the radius of the smallest sphere… CONTINUE READING
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