Buchheim, Christoph; De Santis, Marianna; Palagi, Laura; … - Dipartimento di Ingegneria Informatica, Automatica e … - 2012
We propose a branch-and-bound algorithm for minimizing a not necessarily convex quadratic function over integer variables. The algorithm is based on lower bounds computed as continuous minima of the objective function over appropriate ellipsoids. In the nonconvex case, we use ellipsoids...