一种基于MTS的网络区域管理工作站实现策略

网络扩容的一个重要障碍是异构子网连接后的互连管理问题。分区域的一体化管理无疑是一种解决办法。本文提出一种基于管理协议细栈(MTS)来构造一体化的区域管理中心(RMC)的策略,这里的 RMC 可实现彼此间的管理通信和互操作,从而也解决了扩容后的互连管理问题。结合正在进行的工程实践,文章还进一步从技术角度上讨论了实现策略。     

制订科学的预防维修大纲加速维修管理科学化

本文探讨了欧洲国家维修团体联盟(EFNMS)第十次学术会议的主题——“维修——为了未来的投资”的意义和内涵.在此基础上,重点介绍了为获取此种投资效益所必需制订的预防维修大纲的方法及其理论依据.     

型号研制技术状态管理

论述了型号工程研制项目的技术状态管理目标、技术状态管理的４个基本功能（即标识、控制、状态记实与审核）的管理过程,及３个技术状态基线建立的时机。     

Capacitated selection problem

Optimizing the selection of resources to accomplish a set of tasks involves evaluating the tradeoffs between the cost of maintaining the resources necessary to accomplish the tasks and the penalty cost associated with unfinished tasks. We consider the case where resources are categorized into types, and limits (capacity) are imposed on the number of each type that can be selected. The objective is to minimize the sum of penalty costs and resource costs. This problem has several practical applications including production planning, new product design, menu selection and inventory management. We develop a branch‐and‐bound algorithm to find exact solutions to the problem. To generate bounds, we utilize a dual ascent procedure which exploits the special structure of the problem. Information from the dual and recovered primal solutions are used to select branching variables. We generate strong valid inequalities and use them to fix other variables at each branching step. Results of tests performed on reasonably sized problems are presented. © 1999 John Wiley & Sons, Inc. Naval Research Logistics 46: 19–37, 1999     

谈公安科研成果管理工作的问题及对策

当前公安科技工作中科研成果管理面临一些实际问题,应引起各级科研管理工作者的重视。应该坚持科研成果管理的导向作用,加强科研成果的统计管理和加强科研成果转化管理以及组织管理革新等,以便为今后公安科研成果管理的发展提供参考。     

谈高校教学管理现代化

教学管理是高等院校各项管理工作中的核心。随着高等教育改革和信息产业的飞速发展,特别是计算机及网络技术的广泛应用,给传统的教学管理工作带来新的挑战。为此要转变传统的教学管理理念,运用现代化的管理手段,建立现代化的教学管理机制,以提高教学管理的质量和效率,达到提高教学质量的目的。     

Assortment optimization with position effects under the nested logit model

We study the assortment optimization problem with position effects under the nested logit model, whose goal is to find the revenue-maximizing subset of products as well as their corresponding display positions. In this joint assortment-position optimization problem, the choices of products are affected by not only their qualities and prices but also the positions where they are displayed. Despite determining the assortment and their corresponding display positions sequentially, we propose to solve this problem in an integrated way to obtain the optimal solution. We formulate this problem as a nonlinear binary integer programming model and develop a dynamic programming based solution approach to obtain the optimal assortment-position assignments. We carry out extensive numerical experiments to evaluate the benefit of our integrated approach. The most important insight we discover is that it is not necessarily better to put the most attractive products in the best position. Moreover, we show that compared to the sequential approaches, our approach can improve revenue by 10.38% on average, which suggests that firms should take into consideration position effects when making assortment decisions. Finally, we discuss results related to two extensions of this problem, that is, the special case when positions are preassigned to nests, and the joint assortment-position-price optimization problem.     

Purchase and retrieval competition for seasonal produce

We study the competition problem of purchase and multiretrieval of perishable seasonal produce, where wholesalers purchase and stock their products in the first period, and then retrieve and sell them in subsequent periods. We first consider the duopoly case and assume that the prices are exogenous and fluctuate. In each period, after the price realization, the wholesalers retrieve some stock from their warehouses to satisfy their demands. One wholesaler's unsatisfied customers can switch to another and be satisfied by its left retrieved products. Any unsold retrieved stock has no salvage value and any unsatisfied demand is lost. The unretrieved stock is carried to the next period at a perishable rate. The wholesalers compete for the substitute demand by determining their own purchase and retrieval quantities. We show the existence and uniqueness of a pure-strategy Nash equilibrium, and that the Nash equilibrium strategy has the simple “sell-down-to” structure. We also consider the general N-person game and show the existence of the Nash equilibrium, and characterize the structure of the equilibrium strategy for the symmetric case. In addition, we consider the case with endogenous prices, and show that the problem reduces to a repeated newsvendor game with price and inventory competition. We derive the conditions under which a unique Nash equilibrium exists and characterize the equilibrium strategy. Finally, we conduct numerical studies to examine the impacts of the model parameters on the equilibrium outcomes and to generate managerial insights.     

Data-driven research in retail operations—A review

We review the operations research/management science literature on data-driven methods in retail operations. This line of work has grown rapidly in recent years, thanks to the availability of high-quality data, improvements in computing hardware, and parallel developments in machine learning methodologies. We survey state-of-the-art studies in three core aspects of retail operations—assortment optimization, order fulfillment, and inventory management. We then conclude the paper by pointing out some interesting future research possibilities for our community.     

论人力资源管理的重心——人本管理

人本管理是人力资源管理的重心,对提高人员工作效率和敬业精神均有重要意义。本文从人本管理的实质、西方人本管理理念和新世纪人本管理发展三方面就人本管理的现实意义和重要作用做了论述。