利用遗传算法实现项目管理资源优化

遗传算法(GA)是建立在自然选择和群体遗传学机理基础上的随机迭代和进化,具有很强的全局优化搜索能力,而且仅使用所求问题的目标函数就可得到下一步的有关搜索信息,由于遗传算法的基本思想简单,运行方式和实现步骤规范,便于编程。利用遗传算法可以实现资源优化取得很好效果。     

改进的基于旋转位置磁盘调度算法

1IntroductionIn the past ,for disk-scheduling problems , peopleused disk-scheduling algorithms[1]based on disk armposition. Disk rotation was ignored and only the mov-ing distance of disk heads into was takeninto account .Thus ,the problemof seekti me was turnedinto one ofseek distance and further to absolute sumof the differ-ence between cylinders .Suppose that the head beginsat cylinderC0and the schedule order isC1,C2,…,Cn.The total number of cylinders the heads traversehas the following …     

一种改进的启发式网格任务调度算法

互联网技术的发展，硬件技术和通信技术的进步 共同加快了计算机领域前进的步伐。20世纪80年代 出现了并行计算，支持同步的算法、程序和体系结构相 继被开发。随后出现了分布计算，它要求各个处理机 之间能够协同计算，通过处理机间的通信共同解决问 题。网格计算技术的发展适     

进化型硬件及其构成

提出了一种新的硬件研究的流派———进化型硬件.它由5部分构成,其核心是进化型硬件的物质基础———可编程逻辑器件和其理论基础———进化算法.这种硬件能够不断地重构自身的硬件结构,最终达到设计者的要求.     

带T增生映射的广义集值变分包含问题

本文研究了在q一致光滑Banach空间中带T增生映射的广义集值变分包含问题,给出了相应的解的存在性定理和迭代逼近.     

小学生快速跑技能训练形式之我见

快速跑是少儿期重点训练身体素质的内容之一，更是学校业余田径队训练的主要内容。快速跑属于单一周期性的运动项目，较其他的球类项目枯燥单调。因此，运用多种训练形式，是激发学生兴趣，提高训练效果的重要一环。     

遗传算法交叉算子的性能研究

根据目前实际应用中遗传算法的基本概况 ,对遗传算法中起核心作用的交叉算子的性能进行了研究 ,分析了交叉算子对遗传算法收敛性的影响以及如何有效地设计高性能的交叉算子 .     

Reform first and ask questions later? The implications of (fast) schooling policy and ‘silver bullet’ solutions

This article explores the uptake of so-called fast policy solutions to problems in different education policy contexts and highlights the potential impacts that can arise from such policymaking approaches. We draw upon recent literature and theorising around notions of fast policy and evidence-informed policymaking, which suggests that, in an increasingly connected, globalised and temporally compressed social world, policymaking has become ‘speeded up’. This means that policymaking is now largely predicated upon looking around to foreign reference societies to borrow ‘ideas that work’, thereby encouraging particular forms of evidence, expertise and influence to dominate. We focus on three different examples of fast policy schooling documents – namely the OECD’s PISA for Schools report, the edu-business Pearson’s The Learning Curve and an Australian state (New South Wales) education department report entitled What Works Best – to show how all three documents promote an overly simplified, decontextualised and ‘one-size-fits-all’ understanding of schooling policy. This reflects what we describe as a ‘convergence of policy method’ across vastly different policy contexts (an IGO, global edu-business and government department), in which similarly fast policies, and methods of promoting such policies, appear to dominate over potentially more considered and contextually aware policymaking approaches.     

圆度误差的快速傅立叶变换分析

回转零件正截面轮廓的圆度误差可以视为周期函数。对正截面轮廓等角度间隔采样获得的数据点,可进行离散傅立叶变换(DFT)。通过对数据点序列的快速傅立叶变换(FFT)结果加以分析,可以发现隐藏在圆度误差信号中的各种频率成分。文章首先简要介绍了圆度误差的数学模型,然后分析了各种频率成分对圆度误差的影响。最后提出了圆度误差计算的新方法。     

生存的悖论与人性的异化--谈李春平的中篇小说《一路飙升》

中篇小说<一路飙升>是李春平新近发表的又一部以官场为题材的佳作.作者将官场中的人作为社会的人,从人性的角度及人的生存的层面去思考其人性内涵,这是对官场文学的提升.