The new role of tourists in destination image formation

The birth of Web 2.0 tools has created a new paradigm for word-of-mouth communication. Bearing in mind the relevance of tourists as agents in destination image-formation processes, this research discusses the new role they play in this paradigm, and how it affects and modifies the seminal typology of image-formation agents originally proposed by Gartner [1994. Image formation process. Journal of Travel and Tourism Marketing, 2(2), 191–216. doi: 10.1300/J073v02n02_12]. The results focus on the effects of Web 2.0 tools on the credibility, market penetration and costs for the destination of tourists' actions as image-formation agents. Implications for destination marketing organisations are also considered and discussed.     

Web文本分类中特征项权重的研究

Web数据挖掘的主要研究内容是如何快速有效地在异构的、半结构化的、动态的Web信息资源获取有用信息,而Web文本分类是Web数据挖掘的核心。通过分析Web文本的特点,本文提出一种改进的TF-IWF特征项权重计算方法来对web文本进行分类。实验表明,该方法提高了web文本分类系统的分类性能,具有较好的正确率和召回率。     

基于Web2．0的数字图书馆知识社区研究

通过介绍了Web2.0概念、主要应用和核心理念,分析了数字图书馆与知识社区的关系．在此基础上对数字图书馆知识社区的构建原则、主要功能和应用框架进行了探讨。     

Web2．0时代的在线服务业

本文分析了Web2.0的特点;然后结合在线服务业的行业特点,提出了在Web2.0时代,在线服务业应该具备的要求;最后以搜狗作为案例进行说明。     

Stability of the World Trade Web over time – An extinction analysis

The World Trade Web (WTW) is a weighted network whose nodes correspond to countries while edge weights reflecting the value of imports and/or exports between countries. In this paper we introduce to this macroeconomic system the notion of extinction analysis, a technique often used in the analysis of ecosystems, for the purpose of investigating the robustness of this network. In particular, we subject the WTW to a principled set of in silico “knockout experiments,” akin to those carried out in the investigation of food webs, but suitably adapted to this macroeconomic network. Informed by results in network theory as well as studies of contagion in economic networks, we seek to understand the role of connectance in the robustness of the system. We interpret increasing connectance as one aspect of a move towards globalization and liberalized trade policy. Broadly, our experiments confirm two conjectures. First, that the WTWs are “robust yet fragile” networks — robust to random failures but fragile under targeted attack. Second, that growing connectance has both positive and negative impacts on robustness. More specifically, we find that increasing connectance corresponds to increasing robustness for small shocks but to decreasing robustness in the face of large, cascading shocks up to the system. This yields evidence in support of the view that globalization, as witnessed by increasing connectance, increases the ability of a system to absorb shock up until a certain size, whereupon the shock overwhelms the system and sparks a broader contagion. We anticipate that experiments and measures like these can play an important role in the evaluation of the stability of economic systems.     

Interactivity Design as the Key to Managing Customer Relations in E-Commerce

Abstract

A number of studies have highlighted the importance of enhanced relationships with customers and users as a means of improving marketing performance. What seems to be missing is an understanding of how firms can improve online relationships. The current paper proposes that interactivity is a potentially important driver of enhanced online relationships. Although an increasing number of papers have dis cussed the notion of interactivity, there is no established construct to draw upon. A major contribution of the paper is scale development of the interactivity construct, both in terms of item generation and confirma tory factor testing. Because of the exploratory nature of the exercise, it is prudent to use student samples. The paper was able to develop a reliable and valid construct of interactivity. Moreover it was demonstrated that interactivity was a positive and significant determinant of online quality relationships in the two samples investigated.     

一种基于物流市场的网格Web服务资源分配模型

本文在OGSA、WSRF和WS-Notification基础上提出了一种基于物流市场的网格Web服务资源分配模型。该模型充分利用了物流技术的特点,使网格Web服务资源得到有效分配和利用。该模型适合广域环境,是一种有效合理的网格Web服务资源分配模型。     

基于Web的现代远程教育及发展趋势

现代远程教育是基于WWW网上Web页的多媒体网络教育，是利用WWW进行一对一、一对多的多媒体远程教学，它可以是实时的、交互式的、多媒体的，甚至是不受时空限制的。低带宽和HTML较弱的信息类型表现能力是现阶段现代远程教育发展的瓶颈，超媒体和宽带网的发展对成功进行现代远程教育至关重要。现代远程教育将对人类明的发展产生巨大的推动作用。     

利用ASP分页浏览基于Web的光盘数据库

讲述了利用 ASP开发 WEB数据库时 ,控制网络页面显示数据 ,进行分页浏览输出的方法 ,分页浏览使用的主要技术和手段 ,Recordset对象与分而显示有关的技术与基础。文中以实例介绍了数据记录分页显示的关键技术 ,并给出了设计思想和具体的程序设计