作者：Sherali, HD; Smith, JC
作者单位：Virginia Polytechnic Institute & State University; University of Arizona
摘要：In this paper, we focus on a useful modeling concept that is frequently ignored while formulating discrete optimization problems. Very often, there exists a natural symmetry inherent in the problem itself that, if propagated to the model, can hopelessly mire a branch-and-bound solver by burdening it to explore and eliminate such alternative symmetric solutions. We discuss three applications where such a symmetry arises: a telecommunications network design problem, a noise pollution problem, an...
作者：Kukreja, A; Schmidt, CP; Miller, DM
作者单位：Xavier University of Louisiana; University of Alabama System; University of Alabama Tuscaloosa
摘要：This research shows that organizations with a number of sister plants, warehouses, or other stocking points can profit from the concept of proactive use of transshipments as an element of their inventory control policy. For certain types of parts, employing transshipments can significantly reduce the total inventory needed throughout the entire collection of stocking points. The study is motivated by a real-life situation involving a large utility company having 29 power-generating plants in f...
