新一代的网站开发技术XSP

本文介绍了一个全新的基于XML的Web开发技术XSP。XSP是一种基于Java和XML的能产生动态Web内容的服务器端语言。使用XSP可以实现Web的静态内容、表现形式和程序逻辑的分离,而这种分离是通过Apache Cocoon实现的。XSP与Cocoon的结合大大提高了站点的开发速度以及站点的可管理性。     

基于Cocoon+XSP框架的网站开发技术

XSP是一种基于Java和XML的能产生动态Web内容的服务器端语言。在Internet应用程序开发中,使用XSP可以实现静态内容、表现形式和程序逻辑的分离,而这种分离是通过Apache Cocoon实现的。Cocoon 是一个用Java语言编写的、提供静态和动态Web内容的,基于XML的Web出版框架。XSP与Cocoon的结合大大提高了站点的开发速度以及站点的可管理性。     

在Web上建立属于你的网站(Ⅱ)

Corel WebMaster Suite为人们提供了大量创作和维护精致Web站点程序、图像和模板,尤其适合那些喜欢一劳永逸工作方式的用户。 Corel Web.Designer与Web.SiteManager都是所见即所得的HTML编辑环境,它们是WebMaster Suite的核心应用程序。当你要新建一个站点,SiteBuilder wizard可以引导你通过一系列的对话框,选择页面编排和显示的模板。     

基于Web标准的网站设计与开发流程

Web标准是当前Web设计与开发领域的热门话题和未来趋势.Web标准主要以XHTML CSS语言为两大核心技术.基于Web标准的设计与开发,可以将网站的外观与结构分离,使站点的易用性访问及维护更加容易.阐述了Web标准的网页设计与开发流程,并对其具体实现进行了简要介绍.     

基于Web技术的CSS网页布局应用

介绍基于Web标准的网页制作方法,并以一个实例详细讲解了网页的布局规划、HTML的生成、CSS样式表的控制,最为直观的介绍了div+css的网页布局方式.这种布局方式因实现了网页表现与内容的分离而使网站的维护及更新变得更加方便,从而成为了当今非常流行的网站布局方法.     

基于Web技术的静态网页到动态网页的改造

应用ASP.NET技术改造旧有静态网页,使用户可以更迅速地寻找相关内容。一般工作人员可以通过对数据库内容的修改,实现网页内容的即时更新。采用编译型C#.NET语言,提高网页的执行效率。在Config.web文件中存储Web站点的配置信息,改善了站点的可移植性。     

基于Web技术的静态网页到动态网页的改造

应用ASP.NET技术改造旧有静态网页,使用户可以更迅速地寻找相关内容.一般工作人员可以通过对数据库内容的修改,实现网页内容的即时更新.采用编译型C#.NET语言,提高网页的执行效率.在Config.web文件中存储Web站点的配置信息,改善了站点的可移植性.     

Web信息系统用户资料更新功能的设计与实现

阐述与分析了信息系统用户资料更新设计的基本原理与方法,并利用ASP设计了用户资料网上查找和编辑表单,实现了通过Web浏览器对服务器上Access数据库的用户注册信息进行更新的功能。     

基于新Web标准下的DIV CSS网页布局方法探讨

随着利用旧的页面布局的弊端逐渐暴露,新Web标准的重要性越来越被人们所重视。本文主要讨论了在新Web标准下的DIV CSS网页布局方法,这种方法使网页外观与结构分离,使站点的访问及维护更加容易,最后通过一个实例介绍了其基本操作流程。     

现代Web设计中的交互性原则

传统Web设计存在普遍性的误区,很多思想仅仅适用于早期或者面向页面的简单Web站点开发,难以面对现代商业站点中的大量事务处理。相对于组织、内容、条理性和表现,交互性是当前Web设计中需要关注的重点。在Web站点开发过程中,交互设计师、信息设计师和视觉设计师需要密切合作,Web设计过程与通用软件开发过程是类似的。     

Content presentation personalisation and media adaptation in tourism web sites using Fuzzy Delphi Method and Fuzzy Cognitive Maps

Web sites become more powerful when they can adjust to their users’ needs. Web personalisation refers to adapting both the content and the presentation of web sites, so that to deliver the maximum effect to the user in the most appropriate way. A main objective of web personalisation is to adapt the presentation of the web content in a manner that increases the user’s perceived quality. This paper focuses on the applicability of fuzzy logic techniques to content presentation and media adaptation. More specifically, it applies Fuzzy Delphi Method (FDM) and Fuzzy Cognitive Maps (FCMs) in order to highlight the services features that are most preferred by the customer and to adapt presentation media and layout. Fuzzy logic is utilised to deal with the subjectivity inherent in web design choices and in customers’ perception of services priorities. FDM is used to capture the experts’ knowledge regarding media adaptation with respect to hotel service quality. A prototype that adapts the web site presentation according to customer preferences has been developed and evaluated.     

SERFing the web: The Re-Web approach for web re-structuring

In our emerging digital paper-less society, massive amount of information is being maintained in on-line repositories and diverse web site representations of this information must be served over the Internet to different user groups. E-commerce and digital libraries are two representative sample applications with such needs. In this paper we present a database-centric approach called Re-Web that addresses this need for flexible web site generation, re-structuring, and maintenance. Re-Web is based on two key ideas. First, we exploit the web site structure by associating web semantics (XML equivalents) with the modeling constructs of the ODMG object model to aid the web site generation process. By capturing the logical structure of web views within the OODB system, we can efficiently maintain the web views using standard database techniques. Secondly, to ease the process of specification and construction of multiple customized web view sites, we also propose the notion of generic web view transformations that are encapsulated into re-usable templates. Thus desired new web view sites can be generated simply by applying the corresponding transformations on the underlying database to produce web view classes and then by applying the web semantics on the newly built view classes. The Re-Web system has been implemented using PSE by Object Design Inc. as object repository, ODMG as object model, OQL as transformation language, SERF as OODB evolution facility and IBM XML parser and LotusXSL processor to aid the web site generation. A case study using Re-Web is also presented to illustrate the working of the system. To the best of our knowledge, Re-Web is the first web site management system focusing on the issue of re-usable view generation templates at the content and not at the presentation style level of abstraction. This revised version was published online in August 2006 with corrections to the Cover Date.     

Refilming with Depth-Inferred Videos

Compared to still image editing, content-based video editing faces the additional challenges of maintaining the spatiotemporal consistency with respect to geometry. This brings up difficulties of seamlessly modifying video content, for instance, inserting or removing an object. In this paper, we present a new video editing system for creating spatiotemporally consistent and visually appealing refilming effects. Unlike the typical filming practice, our system requires no labor-intensive construction of 3D models/surfaces mimicking the real scene. Instead, it is based on an unsupervised inference of view-dependent depth maps for all video frames. We provide interactive tools requiring only a small amount of user input to perform elementary video content editing, such as separating video layers, completing background scene, and extracting moving objects. These tools can be utilized to produce a variety of visual effects in our system, including but not limited to video composition, "predatorrdquo effect, bullet-time, depth-of-field, and fog synthesis. Some of the effects can be achieved in real time.     

采用Java技术开发可复用的Web表示层构件

JSP和Servlet技术为Web应用系统的构建提供了强大的支持.但是,许多开发者常常会忽略掉一些关键的设计原则,开发出难以维护、难以测试的系统.基于分层次的结构,以Java技术为基础,开发控制器构件、值传递构件、用户会话管理构件、格式构件和JSP页面测试驱动构件,最后组装成Web表示层构件.该构件化的开发方法,提高了系统的可复用度,并且可以在较短的时间内组装出符合用户需求的新系统,从而降低了系统的开发成本及升级维护费用,并能增强系统的可测试性和可维护性.为基于Web的应用系统开发提供了新的思路和方法.     

Piggy Bank: Experience the Semantic Web inside your web browser

The Semantic Web Initiative envisions a Web wherein information is offered free of presentation, allowing more effective exchange and mixing across web sites and across web pages. But without substantial Semantic Web content, few tools will be written to consume it; without many such tools, there is little appeal to publish Semantic Web content.To break this chicken-and-egg problem, thus enabling more flexible information access, we have created a web browser extension called Piggy Bank that lets users make use of Semantic Web content within Web content as users browse the Web. Wherever Semantic Web content is not available, Piggy Bank can invoke screenscrapers to re-structure information within web pages into Semantic Web format. Through the use of Semantic Web technologies, Piggy Bank provides direct, immediate benefits to users in their use of the existing Web. Thus, the existence of even just a few Semantic Web-enabled sites or a few scrapers already benefits users. Piggy Bank thereby offers an easy, incremental upgrade path to users without requiring a wholesale adoption of the Semantic Web's vision.To further improve this Semantic Web experience, we have created Semantic Bank, a web server application that lets Piggy Bank users share the Semantic Web information they have collected, enabling collaborative efforts to build sophisticated Semantic Web information repositories through simple, everyday's use of Piggy Bank.     

The web from a complex adaptive systems perspective

The web continues to grow at a phenomenal rate, and the amount of information on the web is overwhelming. Finding the relevant information remains a big challenge. Due to its wide distribution, its openness and high dynamics, the web is a complex system, for which we have to imagine mechanisms of content maintaining, filtering and organizing that are able to deal with its evolving dynamics and distribution. Integrating mechanisms of self-organization of the web content is an attractive perspective, to match with these requirements. Self-organized complex systems can be programmed using situated multi-agent systems with a coupling between the agents' social organization and spatial organization. This paper explores the web from a complex adaptive system (CAS) perspective. It reviews some characteristic behaviors of CASs and shows how the web exhibits similar behaviors. We propose a model and a prototype of a system that addresses the dynamic web content organization, adopting the CAS vision and using the multi-agent paradigm.     

电子政务审批系统的设计和实现

对电子政务中应用的工作流技术以及IBM的工作流管理系统MQ Worknow做了简要介绍，提出了使用MQ Workflow作为工作流建模和执行平台，设计和实现了一个基于Web的网上审批系统，并将Web Senrice技术融合进来，实现了工作流系统对Web服务的调用。     

B-CWB: Bilingual Comparative Web Browser Based on Content-Synchronization and Viewpoint Retrieval

We propose a new way of browsing bilingual web sites through concurrent browsing with automatic similar-content synchronization and viewpoint retrieval facilities. Our prototype browser system is called the Bilingual Comparative Web Browser (B-CWB) and it concurrently presents bilingual web pages in a way that enables their contents to be automatically synchronized. The B-CWB allows users to browse multiple web news sites concurrently and compare their viewpoint of news articles written in different languages (English and Japanese). Our viewpoint retrieval is based on similar and different detection. We described categorizing pages in terms of viewpoint: the entire similarity, the content difference, and subject difference. Content synchronization means that user operation (scrolling or clicking) on one web page does not necessarily invoke the same operations on the other web page to preserve similarity of content between the multiple web pages. For example, scrolling a web page may invoke passage-level viewpoint retrieval on the other web page. Clicking a web page (and obtaining a new web page) invokes page-level viewpoint retrieval within the other site's pages through the use of an English-Japanese dictionary.     

基于多粒度树模型的Web站点描述及挖掘算法

随着Web所拥有的信息量和信息种类的急剧增长,Web站点挖掘对于自动实现特定主题的Web资源发现和分类具有重要的意义.然而现有的Web站点分类或挖掘算法在利用上下文语义信息、去除噪声信息以进一步提高分类准确率等方面还缺乏深入研究.从站点的采样尺寸、分析粒度和描述结构3个方面分析了设计高效的Web站点挖掘算法所需要解决的问题.在此基础上,提出了一种新的Web站点多粒度树描述模型,并描述了包括基于隐Markov树的两阶段分类算法、粒度间上下文融合算法、两阶段去噪程序以及基于熵的动态剪枝策略在内的多粒度Web站点挖掘算法.站点的多粒度描述方法及挖掘算法为多站点查询优化、Web效用挖掘等的深入研究奠定了基础.实验表明,该算法相对于基线系统平均可以提高16%的分类准确率,并减少了34.5%的处理时间.     

基于Linux的实验室管理及决策支持平台设计及实现

本文根据实验室管理系统特点,具体论述了实验室管理系统的功能模块设计,并讨论了若干关键技术的实现方法,如LDAP身份认证,决策支持的实现,基于web的可视化编辑技术。