The minimum cost path problem in a time-varying road network is a complicated problem. The paper proposes two heuristic methods to solve the minimum cost path problem between a pair of nodes with a time-varying road network and a congestion charge. The heuristic methods are compared with an...

Current situations of organic tobacco development at both home and abroad, indicating mat organic tobacco is one of the innovation directions for sustainable, healthy, environmental protection and low carbon development of modern tobacco industry. On the basis of foreign cultivation technical...

Alternative optimal solutions can give more choice for practical decision making. Therefore, the provision of methods for finding alternative optimal solutions is an important component part of the solution techniques for optimization models. The aim of this paper is to present a...