电子商务的经济学演绎

新经济形态的崛起,尤其是以电子商务为核心的网络经济的发展带个人们严肃的的思考,这一个怎样的经济形态,我们该如何来解释,是归属于卢卡斯为代表新古典宏观经济学派?还是哈耶克为代表的奥地利学派?还是萨缪尔森的新古典综合学派?还是杨小凯的新古典学派?还是弗里德曼的货币学派?还是科斯的新制度学派?……电子商务到底对我们以后的经济活动有怎样的影响。     

构建中国电子商务生态系统——访国家电子商务示范城市创建工作专家咨询委员会专家组组长、清华大学教授柴跃廷

随着电子商务在各领域应用的不断拓展和深化,相关服务业蓬勃发展、支撑体系不断健全完善、创新的动力和能力不断增强。电子商务与实体经济如何深度融合？对经济社会产生怎样的影响？电子商务作为我国经济发展的新引擎,将面临怎样的机遇与挑战？带着这些问题,本刊记者采访了著名电子商务专家柴跃廷教授。     

温故2003：电子商务十大年度事件

2003年，是电子商务充满激情和挑战的一年。温故可以知新，让我们蓦然回首过去的一年，到底什么使电子商务如此精彩？     

电子商务定义与分类

这个题目,可能很多人都觉得是老生常谈。但从我们创办《电子商务世界》以来,有不少读者问过我们这样的问题,所以,值此第七届中国国际电子商务大会开幕之际,也来谈谈我们对电子商务的定义与分类。 电子商务是什么?电子商务是运用现代通信技术、计算机和网络技术进行的一种社会经济形态,其目的是通过降低社会经营成本、提高社会生产效率、优化社会资源配置,从而实现社会财富的最大化利用。因此,电子商务是一种新的社会经济形态。 网络是人类社会劳动、生活、学习的新工具,它通过影响人类通信与交往方式,间接地对传     

走ASP之路——景新海谈中创软件电子商务策略

电子商务、互联网的兴起使过去领导潮流的 PC厂商、软件厂商、系统集成商必须进行策略调整，但随波逐流显然不是出路。中创软件这样的年收入数亿元的软件大厂商是怎样思考、怎样订制自己的战略的呢？笔者近日采访了中创软件公司董事长景新海，他对此谈了自己的看法及中创软件的策略。 　　问：你对电子商务大潮的看法？ 　　答：电子商务肯定是一个大趋势。从总体上看计算机技术从单一到区域直到现在互联网在全球发展迅速，作为信息技术应用的结果，这会给全球的社会政治、经济带来巨大变化。回顾几年来互联网的走向，很多都是超出人们预期…     

农产品迎接 E时代

面对农产品电子商务这股势不可挡的潮流,我们该如何应对？在大潮洗礼下的农业市场又会迎来怎样的新局面？     

战略管理这头大象

战略形成是一个怎样的过程？十个学派就有十个答案：一个孕育过程、一个程序化过程、一个分析过程……在《战略历程》一书中，管理大师亨利·明茨伯格和另外两位作者布鲁斯·阿尔斯特兰德、约瑟夫·兰佩尔，将各种战略管理理论划分为十个学派，并详细阐述了十个学派关于战略形成过程的观点。三位作者把战略看作是一头大象，     

全方位立体式，迈入全渠道零售时代——第十四届海鼎现代商业管理用户研讨会报道

一年一度的海鼎研讨会都会设置不同的研讨主题，每年我们都能从会议上学习到不同的看点。今年零售市场竞争加剧，企业不再仅仅关注怎样发展电子商务，而是探索怎样迈入全渠道零售时代。“明道·驭术”，今年海鼎研讨会又会带给大家怎样的思想冲击？     

《网络与信息》2001年精彩回放

２０００年中国网民离不开的５０个网站２０世纪中国互联网大事记信息革命与信息社会的黎明网络经济的新定律互联网是过眼烟云？飞越数码鸿沟中国电子商务市场的１０大怪象与５大误区新开网站／ｅ形广告／网上流言／最新免费资源行业互联网之旅游／医药网事排行榜之软件篇新年新工具之网海邀游篇硬件快报／采购手记新天使帝国兵种介绍迎战新版“特洛伊木马”病毒搜索引擎快速实现ＮＴ怎样拨号上网？网虫学爬如何让Ｗｉｎｄｏｗｓ Ｍｅ与Ｗｉｎｄｏｗｓ ９８友好相处？信息技术导致美国经济衰退ＩＴ技术为经济带来了什么？政府监管机构的行为…     

取代还是并存──虚拟商业将如何挑战传统商业

虚拟商业，电子商务的全面兴起昭示着互联网产业进入了商业利益和资本市场驱动的全新时代，它为我们这个商业社会带来了无限商机，也提供了一个重排座次，重新洗牌的难得机遇。但是一切毕竟还刚刚开始，有着悠久历史和强大根基的传统商业形态仍然是商业社会的主流。异军突起的虚拟商业究竟能否摧毁并取代传统商业，抑或两者将在今后相当长的一段历史时期内并存发展．乃至互补或交融？相信这是所有关心商业的趋向和命运的人们共有的问题。销品茂与电子商务的短兵相接 与其他产业形态相似，商业发展至今也历经了一长串的演变过程。从物物交易…     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。