基于AHP——模糊综合评判的港口功能评价方法的研究

将层次分析法与模糊综合评判方法相结合,提出了一种新的定量的港口功能评价方法。给出了港口功能评价指标体系的结构模型。该方法在一定程度上减小了主观因素对评价的影响并使定性问题定量化。在实际问题中应用该模型证明此方法可行。     

An Effective Hybrid Heuristic Algorithm for the Hub Location Problems of Small-Scale Uncapacitated Hub-and-Spoke Network

The key factors for designing a successful hub-and-spoke network are to determine the optimal number of hubs, to properly locate hubs, and to allocate the non-hubs to the hubs.This paper proposed a hybrid heuristic based on genetic algorithm (GA) to resolve the uncapacitated single allocation hub location problem with fixed cost (USAHLPFC), according to the upper bound of the ratio of the number of hubs to the number of nodes.Computational experiments were conducted using the Civil Aeronautics Board (CAB) data set.Results indicate that, applying the proposed heuristic, one can obtain the optimal solutions for all small-scaled problems very efficiently.A comparison between the proposed hybrid heuristic method and the GA presented by Topcuoglu et al.shows that the former outperforms the latter when the discount factor α is less.