现代物流体系中快速转运仓库设计与讨论

快速转运仓库设计是现代物流网络设计中一个重要的环节,其设计的好坏直接影响到整个物流网络的效率．针对有代表性的3种快速转运仓库设计方案,运用遗传算法进行比较,并对其结果进行分析．     

The Realization of the Most Economical and optimized Control System

In order to plow an access to low cost automation, the method to set up the most economical and optimized control system is studied. Such a system is achieved by adopting the field bus technologies based on net connection to form the hierarchical architecture and employing genetic algorithm to intelligently optimize the parameters of the topology structure at the field execution level and the parameters of a local controller. Praxis has proved that this realization can shorten the system development cycle, improve the system's reliability, and achieve conspicuous social economic benefits.     

现代优化计算方法──遗传算法简介

本文系统回顾了一种现代新颖的优化算法──遗传算法的基本理论。首先简单介绍了遗传算法与生物进化的联系，然后依次介绍了遗传算法的具体设计方法和步骤、遗传算法的主要特点、遗传算法现状及前景。     

Method and application of wavelet shrinkage denoising based on genetic algorithm

INTRODUCTION Most underwater acoustic signals received by sonar are corrupted inevitably by unpredictable noise sources. In most cases, sonar system is adversely influenced by noise so disturbing that target signals cannot be detected and classified correctly so that pre-processing is necessary to reduce the noise as much as possible. Methods of noise reduction based on wavelet transform have been developed extensively in pre-vious literatures (Xu et al., 1994; Sun, 1998), and include wav…     

CIS_(28-10)的选育及其特征特性研究

文章简述了选育CIS_(28-10)的主要技术路线,从三个方面总结了CIS_(28-10)的主要特征特性,提出了今后有关CIS_(28-10)研究的四个主要方面。笔者认为,CIS_(28-10)是目前比较好的水稻两用核雄性不育系,对CIS_(28-10)的进一步研究将为其生产利用提供更丰富的资料,有助于更快地将其应用于生产。     

Facilitating preservice teachers’ development of mathematics knowledge for teaching arithmetic operations

Mathematical tasks, centered on arithmetic word problems, are discussed as the basis of an approach to facilitate preservice elementary teachers’ development of mathematical knowledge for teaching arithmetic operations. The approach consists of three groups of tasks that allow students to reflect on their initial knowledge, explore arithmetic word problem situations from multiple perspectives, and apply their resulting knowledge, respectively. Findings from the investigation of the approach indicate that the tasks can provide an effective and meaningful basis to help preservice teachers to develop deeper understandings of the arithmetic operations and their relationships and pedagogical-mathematical knowledge for teaching the arithmetic operations conceptually.     

Intrusion detection using rough set classification

Recently machine learning-based intrusion detection approaches have been subjected to extensive researches because they can detect both misuse and anomaly. In this paper, rough set classification (RSC), a modern learning algorithm, is used to rank the features extracted for detecting intrusions and generate intrusion detection models. Feature ranking is a very critical step when building the model. RSC performs feature ranking before generating rules, and converts the feature ranking to minimal hitting set problem addressed by using genetic algorithm (GA). This is done in classical approaches using Support Vector Machine (SVM) by executing many iterations, each of which removes one useless feature. Compared with those methods, our method can avoid many iterations. In addition, a hybrid genetic algorithm is proposed to increase the convergence speed and decrease the training time of RSC. The models generated by RSC take the form of "IF-THEN" rules, which have the advantage of explication. Tests and compa     

《计算机图形学》教学的几点体会

通过分析计算机图形学教学中出现的一些问题并针对这些问题,提出在课堂教学、习题、实验等教学环节进行改进的方法.实践表明,这些方法对于提高课程的易理解性、学习趣味性和教学质量具有明显的作用.     

关于Carleman不等式的进一步加强

通过估计权系数获得了一个加强的Carleman不等式: