 关键词：动态最优路径,遗传算法；动态路径诱导；最优路径；神经网络
Abstract:Withtheconstantexpansion of the network size, some routing algorithms based on pure mathematical models have been confronted with new challenges. In order to meet the requirements for real-time and reliability of network routing, a new dyna (09/12/2008 23:03:23) [查看全文] 内容摘要：蚁群算法（ant colony algorithm，简称ACA）是一种最新提出的新型的寻优策略，本文尝试将蚁群算法用于三层前向神经网络的训练过程，建立了相应的优化模型，进行了实际的编程计算，并与加动量项的BP算法、演化算法以及模拟退火算法进行比较，结果表明该方法具有更好的全局收敛性，以及对初值的不敏感性等特点。
关键词：期货经纪公司 综合实力 主成分分析 聚类分析 人工神经网络（ANN）是大脑及其活动的一个理论化的数学模型，由大量的处理单元（神经元）互连而成的，是神经元联结形式的数学抽象，是一个大规模的非线性自适应模型。人工神经网络具有高速的运算能力，很强的自学习能力、自适应 (09/12/2008 23:03:04) [查看全文] 行业背景
中国远洋物流公司(COSCO LOGISTICS以下简称中远物流)是中国远洋运输集团（COSCO）下属的、规模和实力位于国内行业前列的公共物流企业。中远物流为国内外广大货主和船东提供现代物流、国际船舶代理、国际多式联运、公共货运代理、空运代理、集装箱场站管理、仓储、拼箱服务；铁路、公路和驳船运输、项目开发与管理以及租船经纪等服务。 中远物流总部在北京，下设大连、北京、青岛、上海、宁波、厦门、广州、武汉八个区域公司，在韩国、日本、新加坡、希腊和香港设有代表处，并与国外40多家货运代理企业签定了长期合作协议；在中国国内29个省、市、自治区建立了300多个业务网点，形成了功能齐全的物流网络系统。中远物流凭借国际化的网络优势，在细分市场 (09/12/2008 23:02:57) [查看全文] 摘要：本文主要介绍了智能网及业务在全球的发展状况，并对移动智能网的标准及在中国的建设和业务运营情况进行了探讨，指出智能网的发展建设必须以业务建设及业务的全网覆盖为前提；智能网标准将最终演进归于ITU-T标准。 一、引 言 当前的通信网正向着智能化、宽带化、个人化的方向发展，其本的电信服务已无法满足人们的需求，各种用户对电信业务的需求变得越来越复杂，这就要求电信网能迅速而灵活地向用户提供种种电信业务。传统的新业务提供方法是每提供一种新业务，网上的所有交换机增加一块软件，成本很高，可靠性差，维护困难，而且需要很长时间。智能网技术克服了传统方法的这些缺点，采用交换与业务分开的思想，对业务的适应性强，生成业务的周期短，同时其规范性又使各厂商更容易互通，这一切使得 (09/12/2008 23:02:53) [查看全文] 关键词 三维地理信息系统 矢量数据结构 六组拓扑结构 层次树 矿山
Abstract Discussing the shortcoming existing in the traditional data structure and according to the underground mining condition and referring to 2D vector GIS topologic data structure, the authors propose six groups structures to describe topologic relations among six elements: Point-node, ARC, Ring, (09/12/2008 23:02:43) [查看全文] 关键词 多源图象，查找表，直方图，灰度变换，图象处理系统，地理信息系统.
Abstract As multisource images have very large data range, how to complete quickly point transformation is difficult in image processing system. By introducing concept of re_mapping table, color look_up_table and two_level color look_up_table, this paper puts forward an arithmetic (09/12/2008 23:02:33) [查看全文] Abstract I will discuss the practical experiences of teaching and administrating a web-based distance course in Business Administration distributed from Örebro University to both campus students and students from other parts of Sweden. The project also involves the cooperation with twenty community learning centres. The presentation wi (09/12/2008 23:02:28) [查看全文] 提要 从计算机网络中央室、临床药学室、药库管理、药房管理、制剂管理、药品采购财务系统六个方面介绍计算机网络在医院药剂科的应用。旨在使计算机在药剂科充分发挥作用，从而提高药剂科各部门的工作效率，使药剂科管理系统化、规范化、科学化。
关键词 计算机网络； 药剂科； 应用 近几年来，计算机网络技术的发展日新月异，在各行各业都有开发应用，医药行业更是不甘落后。有资料统计，目前在我国各地二级以上大、中型医院都已普及微机管理。这是医院实现系统化、规范化、科学化管理的必然趋势。药剂科作为医院的一个重要部门，运用微机管理亦在逐步开发应用之中［1］。为了实现信息资源共享、数据传输自动化、减少错误、提高工作效率，在医院药剂科内部进行计算机联网是一个十分有效的科学管 (09/12/2008 23:02:26) [查看全文] Abstract
We present an international human resource development scheme in the form of virtual global university concept to meet the requirements of engineering professionals to serve different societies with ease. As a role model we have chosen one key area of technology: mobile communication technology where needs for such pr (09/12/2008 23:02:25) [查看全文] Abstract With the availability of reasonably cost-effective servers, computing facilities and a fairly reliable and wide spread telecommunication and data network infrastructure, the emergence of "Virtual Technological Institution" is a distinct reality. In this paper we present a model which has been used to implement the features of the c (09/12/2008 23:02:16) [查看全文] Athabasca University (AU) is Canada’s Open University, specializing in the provision of distance education courses at the post-secondary level. The admission requirement for undergraduate students is that applicants to the University be 18 years of age. Students may take courses leading to a number of certificates and degrees. AU offers 14 uni (09/12/2008 23:02:14) [查看全文] "Socrates was not a Content Provider"
David Noble, who made the wry observation about Socrates quoted above, has led the protest against everything that Courselets stand for. His fiery rhetoric is always entertaining and sometimes on target. Along with others, he has performed a valuable service by pointing out the perils of post-Cotta (09/12/2008 23:02:12) [查看全文] Abstract:
A “Web Courselet” is a set of customizable online course materials developed and pre-formatted for use in WebCT or other Courseware Management Systems (CMS). These newly emerging instructional products have the potential to redefine the Instructional Systems Design (ISD) process and the roles of those involved in pro (09/12/2008 23:02:10) [查看全文] The virtual learning guide template requires a theoretical foundation, with the conceptual framework being founded on three theoretical understanding interacting as a tripartite relationship:
· Constructivism (cf Wilson, 1997; Wilson et al, 1995; Abbott and Ryan, 1999) · Systems Theory – in particular Human Activity Systems (cf Klir (09/12/2008 23:02:08) [查看全文] Paper Abstract:
In 1998, developmental work and research began on provision of web-based virtual learning materials at Swinburne University of Technology, Lilydale. Two events (first - the decision to provide printed learning guides, and second - the arrival of the Information Technology, Systems and Multimedia Discipline Leader) acted (09/12/2008 23:02:06) [查看全文] |
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