Acessibilidade / Reportar erro

A Reduced Semidefinite Programming Formulation for HA Assignment Problems in Sport Scheduling

ABSTRACT

Home-Away Assignment problems are naturally considered as quadratic programming models in binary variables. For solving the problem, different formulations are studied here. First, the problem is rewritten as a quadratic programming formulation with linear constraints, and a quadratically constrained version respectively. For large scale problem, some reduced formulation are proposed by manipulating their special structure, with 1/4 of the original size. Note that the quadratic programming formulations lead to semidefinite relaxations solved approximately by semidefinite programming method. Comparison between our SDP relaxation and the MIN-RES-CUT based formulation is given. Finally some numerical experiments are given to illustrate the characteristics of each model.

Keywords:
Sports scheduling; Integer quadratic programming; Semidefinite programming

Sociedade Brasileira de Matemática Aplicada e Computacional Rua Maestro João Seppe, nº. 900, 16º. andar - Sala 163 , 13561-120 São Carlos - SP, Tel. / Fax: (55 16) 3412-9752 - São Carlos - SP - Brazil
E-mail: sbmac@sbmac.org.br