A solution procedure for the discrete time, cost and quality tradeoff problem using electromagnetic scatter search

Decisions concerning a project’s expedition, traditionally involved considerations regarding time and cost tradeoff. It was recently suggested that the quality of a project should also be taken into considerations. In this paper, we propose a meta-heuristic solution procedure for the discrete time, cost and quality tradeoff problem. This problem involves the scheduling of project activities in order to minimize the total cost of the project while maximizing the quality of the project and also meeting a given deadline. We apply a so called electromagnetic scatter search to solve this problem. In this process, we initially generate a population of feasible solutions. In so doing, we use frequency memory to well sample the feasible region. A number of these solutions are then selected and improved locally. The improved solutions are then combined to generate new set of solutions. The combination process utilizes attraction–repulsion mechanisms borrowed from the electromagnetism theory. The whole process is stopped when no significant improvement in the set of solutions are observed. The validity of the proposed solution procedure is demonstrated, and its applicability is tested on a randomly generated large and complex problem having 19,900 activities.     

神经网络在大型复杂武器装备质量综合评价排序中的应用

从大型复杂武器装备系统的具体特点出发,运用基于神经网络的评价方法,构建了大型复杂武器装备质量综合评价模型。实证分析的结果表明该方法得出的结果与实际情况相符。     

心理素质诊断模型的建立与应用

综合运用国内外多种测量量表对大学生的心理素质进行诊断与测试 ,并应用多元统计分析方法对其心理素质结构主因素进行定量分析 ,在此基础上建立了心理素质诊断模型 ,并运用该模型对实际问题进行了分析 .     

重视主体性体育推进素质教育

主体性体育是一种从本质上符合素质教育思想要求的体育新思想，它是指通过建构学生体育主体性的过程，提高学生的体育主体性使其成为体育主体的一种体育，进行主体性体育能从根本上改变体育课程实效差的问题，也是全面推进素质教育的必然要求，21世纪我国体育改革应重视主体性体育。     

数字化是21世纪图书馆的发展方向

探讨了未来数字图书馆的概念，特点，服务方式以及图书馆工作人员应具备的素质。     

Procedure Design to Fulfill Quality Management System

With the application of the principle of PDCA, and dr awing on the experience of the process methods of the ISO9000 and the system met hods of management, the author analyses the basic requirement to fulfill quality management system in enterprises. Then the author inquires into the procedure t o establish the efficiency quality management system. Finally four stages (plan, do, check, action) and eight steps (decision, plan, analyze, design, do, check, improve, fulfill) are put forward to fulfill qualit...     

浅析个体软件过程(PSP)

介绍和分析了PSP的基本概念、作用和进化框架等内容 ,给出了PSP和CMM之间的联系 .CMM被软件业界公认为是当前最好的软件过程 ,PSP是CMM在软件工程师等级上的应用 ,是针对个体软件过程的改进 .     

某宿舍楼质量事故的分析与处理

从设计、施工等方面,对某宿舍楼施工阶段墙体开裂这一质量事故进行了分析,并提出了相应的处理办法.     

教学质量的时齐马尔可夫链评估法

本文研究了教学质量评估中的一种定量分析方法──时齐马尔可夫链评估法．阐明了这种方法的理论依据及其实施程序、并指出它较之其他教学质量评估法更显合理．     

学生成绩分布与一种简便的评估试卷命题质量的方法

利用统计分析方法，对辽宁师范大理科学生成绩分布情况进行了分析；给出了一种评估试卷命题质量的简便易行的方法一用正态曲线拟合的方法，实际证明，效果很好。