3[3]Lee C G,Marina A.Epelman,Chelsea C,et al.A shortest path approaeh to the multiple-vehicle muting problem with split pick-ups[J].Transportation Research,2006,(40).
4[4]Kim B I,Kim S B,Sahoo S.Waste collection vehicle routing problem with time windows[J].Computers＆Operations Research,2006,(33).
5[6]Montané F A T,Galvào R D.A tabu search algorithm for the vehicle routing problem with simultaneous pick-up and delivery service[J].Computers＆Operations Research,2006,(33).
2Dorigo M, Maniezzo V, Colorni A. Ant system:optimization by a colony of cooperative agents [ J ].IEEE Trans on Systems, Man, and Cybernetics,1996, 26(1): 29～41.
3Dorigo M, Gambardella L M. Ant colony system: a cooperative learning approach to the traveling salesman problem [J]. IEEE Trans on Evolutionary Computation, 1997, 1(1): 53～66.
2COLORNI A, DORIGO M, MANIEZZO V. Distributed optimization by ant Colonies [ C ]. Proceedings of European Conference Artificial Life, 1991.
3BULLNHEIMER B, HARD R F, STRAUSS C. An improved ant system algorithm for the vehicle routing problem[J]. Annual of Operations Research, 1999, 89:319 - 328.
