基于蚂蚁算法的用户平衡分配方法研究

在介绍蚂蚁算法基础上给出了基于蚂蚁算法的用户平衡分配模型算法设计,并结合算例讨论了蚂蚁算法应用于用户平衡分配的可行性.最后进行了与F-W算法的比较分析,分析结果表明,蚂蚁算法求得的结果满足用户平衡分配的要求,同时表现出求解结果合理和寻优能力强的特点.     

公益事业中的角色分配

公益事业,已经成为推动社会发展不可或缺的一个因素,创建一个可持续发展的公益事业环境体系,并非只是一个有良知的社会组织或企业能够单独胜任的,在这个体系中,政府、国际组织,民间NGO、社会企业家、企业……各自扮演着不同角色.     

动画作品角色塑造的技巧探索

角色塑造是一部动画片创作的重中之重,其质量直接影响着影片的魅力和在产业链条上的盈利空间,而这个塑造过程则渗透在整个创作的各个环节,创作者不仅要做好到前期设定精准、丰富,也要在中后期利用各种元素不断深化角色,这样才能令角色更加深入人心。     

VR环境下数字化供应链课程协作学习中的角色分配与互动机制研究

伴随信息技术的发展,VR技术在教育领域应用渐广。本文聚焦VR环境下数字化供应链课程协作学习现状,剖析其教学现状,探讨角色分配原则、方法及互动机制的构建,以及角色互动策略与平台搭建等。经案例分析,证实合理的角色分配与有效的互动机制,可提升学生学习效果与综合能力,为课程教学改革提供参考。     

浅谈用户自动化技术的研究和应用

用户自动化技术是智能电网建设的关键内容,是智能配电网建设的重要应用。文章分析了建设用户自动化技术的意义,阐述了用户自动化技术的研究现状,围绕用户自动化技术项目实践进行了总结与思考,并对用户自动化技术领域的未来进行了展望。     

双运量约束下的OD分布与随机用户均衡交通分配组合模型

建立了在起点交通产生总量固定和在讫点交通吸引总量固定约束下的OD分布与随机用户均衡交通分配模型,并证明了该极值模型与随机用户均衡及OD分布要求的等价性,并设计了启发式算法来求解。     

基于用户分类的可聚类性IPv6地址分配

本文通过研究驻地网分配的IPv6可聚合全球单播地址,对其16位SLA ID和64位接口ID进行合理划分,提出一种基于用户分类的可聚类性IPv6地址分配方案.该方案较好的满足了IPv6路由要求,同时为IPv6网络的用户管理提供了便捷.     

交互分配法在辅助生产费用分配中的运用

交互分配法是企业在计算产品生产成本时,对辅助生产部门归集的费用的一种分配方法。采用交互分配法时,辅助生产部门归集的费用需要经过两次分配才能完成。第一次分配是将各辅助生产部门所归集的费用,按照它们所提供的产品或劳务的数量,分配给各受益的车间或部门,各辅助生产部门之间相互提供的产品或劳务也要接受分配;第二次分配是将各辅助生产部门交互分配后的实际费用,即交互分配前的费用加上第一次交互分配转入的费用,减去交互分配转出的费用,再按直接分配法或顺序分配法在各受益单位之间进行分配。按照第一次分配对象的范围和分配顺序的…     

基于多属性决策的城市水资源分配方案的选择

如何在各成员间进行使用权的合理分配是城市水资源管理亟需解决的关键问题.利用多属性决策方法,对城市水资源分配方案的选择进行了研究.研究过程中,提出了应将城市居民,三次产业的生产者,地方政府和相关领域专家纳入水资源分配的决策者集;同时,应在兼顾效率、环境和公平的基础上形成备选方案的属性集;并且,通过实例分析,说明了最优分配...     

A genetic algorithm for the partial binary constraint satisfaction problem: an application to a frequency assignment problem

We describe a genetic algorithm for the partial constraint satisfaction problem. The typical elements of a genetic algorithm, selection, mutation and cross-over, are filled in with combinatorial ideas. For instance, cross-over of two solutions is performed by taking the one or two domain elements in the solutions of each of the variables as the complete domain of the variable. Then a branch-and-bound method is used for solving this small instance. When tested on a class of frequency assignment problems this genetic algorithm produced the best known solutions for all test problems. This feeds the idea that combinatorial ideas may well be useful in genetic algorithms.     

Expatriate pay satisfaction: the role of organizational inequities,assignment stressors and perceived assignment value

Using equity, stress and buffer theories, we investigate the role played by organizational inequities (organizational justice and provision of benefits) and assignment stressors (work adjustment and role novelty) in predicting expatriate pay satisfaction. We also assess the role of perceived assignment value as an important buffer that moderates the above relationships. With a sample of 78 expatriates from nine nationalities working in Hong Kong, we find that organizational justice and work adjustment are both positively related to expatriate pay satisfaction. We also find that perceived assignment value strengthens the provision of benefits–pay satisfaction and work adjustment–pay satisfaction relationships. Limitations and managerial implications are discussed.     

Consistency in the probabilistic assignment model

This paper introduces a notion of consistency for the probabilistic assignment model, which we call probabilistic consistency. We show that the axioms equal treatment of equals and probabilistic consistency characterize the uniform rule, which is the rule which randomizes uniformly over all possible assignments.     

信息系统安全性分析与设计

文章针对以往信息管理系统安全管理中所出现的弊端,提出了一种基于岗位角色的用户权限控制管理的方法。该方法描述了用户、岗位角色和权限的关系,通过分配和取消岗位角色来完成用户权限的控制,较好地解决了系统用户权限管理方面的问题。     

网格环境中基于GSI的改进授权模型的设计

网格计算作为一种新的分布式计算模型,具有分布式、异构和动态变化等特性,若要在网格中实现资源共享的目的,资源的访问控制是首当其冲需要解决的问题。网格的访问控制是建立在现有的基于角色访问控制系统之上的,但是由于网格跨越多个不同的地点和不同的自治域,每个域的访问控制策略和需求可能相差甚远,这使得资源的访问控制更加复杂,如用户-角色的指派和映射。文章在现有的GSI改进授权模型中,用属性对角色进行了扩展,可实现更灵活、动态和细粒度的访问控制。     

On the assignment of students to topics: A Variable Neighborhood Search approach

This article presents a study of a practical assignment problem found in teaching within higher education. Here, students are assigned to scientific topics for which written papers must be submitted. Often, preferences across topics exist among other side constraints that should be considered in solving the problem of interest. Characterizing attributes of real-world problems were studied for scientific departments in Economics and Business Administration at German universities by sending out 800 questionnaires, and analyzing the 203 responses.Based on earlier studies, a Variable Neighborhood Search (VNS) approach was formulated to solve the resulting assignment problem. Several neighborhood search operators were tested, and numerical results are reported for a range of problem scenarios taken from real-world cases. It was observed that VNS leads to superior results vs. single operator local search approaches. Furthermore, we were able to show that in the studied problem, the effectiveness of certain neighborhoods was, to a large extent, dependent on the structures of the underlying problem.An extension of the problem was formulated by integrating a second objective function, which simultaneously balances the workload of staff members while maximizing student utility. The VNS approach was implemented in a computer system, available free of charge, providing decision support for selected other institutions within higher education.     

液晶玻璃基板生产线中自动化控制技术的交互设计

交互设计应用到液晶玻璃生产线中,利用自动化控制技术解决设备问题的同时,改善用户体验,增强系统的可用性。通过在现场实际考察和操作以及对操作人员的了解,对系统中人机界面中画面颜色和布局,操作方便性和安全性,信息简洁明了等许多方面进行了优化,已成功应用到本公司现有生产线中,起到了良好的效果。     

对于学习SQL SERVER2005数据库安全管理机制的理解

SQL SERVER2005的安全管理机制是一个难点。它能够对用户访问SQLSERVER2005服务器系统和数据库的安全进行全面地管理。可以为SQLSERVER2005构造出一个灵活的、可管理的安全策略。对于大部分人来讲理解起来有一定的困难,因此需针对安全管理涉及的几个重要方面展开论述。     

基于流程节点的时间管理方法研究

提出了一种基于流程节点的时间管理方法。先对流程节点的时间属性进行分析,主要包括时间约束和时间冲突。在对流程节点时间属性分析的基础上,通过流程节点的时间调度算法实现对流程的基于流程节点的时间管理与控制。     

The adaptive approach for storage assignment by mining data of warehouse management system for distribution centres

Among distribution centre operations, order picking has been reported to be the most labour-intensive activity. Sophisticated storage assignment policies adopted to reduce the travel distance of order picking have been explored in the literature. Unfortunately, previous research has been devoted to locating entire products from scratch. Instead, this study intends to propose an adaptive approach, a Data Mining-based Storage Assignment approach (DMSA), to find the optimal storage assignment for newly delivered products that need to be put away when there is vacant shelf space in a distribution centre. In the DMSA, a new association index (AIX) is developed to evaluate the fitness between the put away products and the unassigned storage locations by applying association rule mining. With AIX, the storage location assignment problem (SLAP) can be formulated and solved as a binary integer programming. To evaluate the performance of DMSA, a real-world order database of a distribution centre is obtained and used to compare the results from DMSA with a random assignment approach. It turns out that DMSA outperforms random assignment as the number of put away products and the proportion of put away products with high turnover rates increase.