Semantic Web 2.0

The Web 2.0 phenomena is poised to set the creative tone for software developers for years. It could even become a technology wave--one that the Semantic Web would do well to catch.     

Heraclitus: A Framework for Semantic Web Adaptation

The World Wide Web's constant growth and transformation offers great opportunities - and poses many challenges for exploitation. The semantic Web has emerged as a possible answer to these challenges by offering an approach in organizing and sharing the Web, but it doesn't explicitly consider user needs and requirements. Heraclitus is a framework for semantic Web adaptation in which user needs and requirements are the driving force, using text and Web usage mining to support Web site ontology and topology evolution. The result is improved user interaction with the semantic Web     

A Flexible Ontology Reasoning Architecture for the Semantic Web

Knowledge-based systems in the semantic Web era can make use of the power of the semantic Web languages and technologies, in particular those related to ontologies. Recent research has shown that user-defined data types are very useful for semantic Web and ontology applications. The W3C semantic Web best practices and development working group has set up a task force to address this issue. Very recently, OWL-Eu and OWL-E, two decidable extensions of the W3C standard ontology language OWL DL, have been proposed to support customized data types and customized data type predicates, respectively. In this paper, we propose a flexible reasoning architecture for these two expressive semantic Web ontology languages and describe our prototype implementation of the reasoning architecture, based on the well-known FaCT DL reasoner, which witnesses the two key flexibility features of our proposed architecture: 1) It allows users to define their own data types and data type predicates based on built-in ones and 2) new data type reasoners can be added into the architecture without having to change the concept reasoner     

一种基于服务质量的语义Web服务发现框架

在Web服务发现过程中,不同的用户希望根据自己的情况或个性化的需求进行服务选择,如何提供满足用户服务质量（QoS）需求的服务是语义Web服务应用急需解决的问题。基于OWL规范定义了一个QoS元模型——OWL-QoS,并将其应用于Web服务描述当中。根据提出的QoS元模型给出了一个基于QoS的语义Web服务发现框架,并从基本描述、IOPE、QoS三个层次实现了服务匹配。实验结果表明,与传统语义Web服务发现方法相比,该方法能显著提高服务匹配精度和效率。     

一种基于服务质量的语义Web服务发现框架

在Weh服务发现过程中,不同的用户希望根据自己的情况或个性化的需求进行服务选择,如何提供满足用户服务质量(Qos)需求的服务是语义Web服务应用急需解决的问题.基于OWL规范定义了一个QoS元模型--OWL-QoS,并将其应用于Web服务描述当中.根据提出的Qos元模型给出了一个基于Qos的语义Web服务发现框架,并从基本描述、IOPE、QoS三个层次实现了服务匹配.实验结果表明,与传统语义Web服务发现方法相比,该方法能显著提高服务匹配精度和效率.     

一种柔性Web展现框架模型

在Web2．0时代,越来越多的网站采用了动态脚本的方式和用户进行交互,大量客户端脚本的应用,造成了代码的可适应性、可维护性、可扩展性较差,无法兼容各种主流浏览器,页面之间的跳转仍然较多,资源的加载没有规则等问题,影响了应用性能和用户体验．提出了一种柔性Web展现框架模型FWF,构造了符合AJAX＋MVC模式的框架模型,定义了组件模型并通过策略适配器的驱动及事件机制,较好解决了软件适应性问题;对UI组件进行面向对象的封装,实现模型（Model）、视图（Ⅵew）和控制（Controller）的合理分层,并通过内置的资源加载规则,缩短资源加载时间,从而提升用户应用体验,通过OSGI框架的模块扩展机制实现了Web组件的可扩展．此外,通过原型实例实验证明了框架的柔性和性能．     

基于QoS的语义Web服务选择框架

服务质量（QOS）成为动态选择满足用户需求的Web服务的关键因素。然而目前Web服务的QoS信息描述缺乏语义性,且Web服务的选择还不能做到完全自动化。文章提出一种Web服务的QoS本体结构,并在此QoS本体和原有的语义Web服务的基础上提出基于QoS的语义Web服务选择框架（QSF4SWS）。研究表明,该框架不仅增强了Web服务QoS描述的语义性,而且还能够实现Web服务的动态发现与自动选择。     

SOAW2 for Managing the Web 2.0 Framework

Web 2.0 predicates an improved and seamless user interaction and management of Web environment and resources, guaranteeing required services and a flexible generation of user applications. This occurs via an agile composition of services from available application (foundation) tools. Hence, Web 2.0 developers merely create the core of these applications, while the boundaries dynamically change and expand in accordance with user interaction (a use model). In other words, the resources, tools, and services act as plug-in entities that users can add or remove from the application's operational framework according to their needs. In this article we propose a service-oriented architecture, or SOA, model for managing the operation of Web 2.0 platform actors, improving the services provided to consumers     

面向企业应用的RFID集成中间件框架

本文针对RFID系统与企业应用系统的集成问题,设计并实现了RFID集成中间件,RFID集成中间件由单据服务器、硬件服务器、业务流程控制引擎、数据处理引擎、数据库管理、公共信息服务模块组成。数据流技术应用于RFID数据的过滤、封装环节,采用规则引擎与Ioc技术实现了RFID数据与业务流程的集成和融合,以及处理组件可配置性,分布式架构则提高了中间件的部署灵活性。     

基于扩展UDDI语义Web服务发现框架的研究

传统Web服务采用简单分类和关键字的服务发现方法,造成查准率与查全率低。语义Web服务是Web服务的语义扩展,它能有效提高服务发现的效率。本文基于OWL-S、描述逻辑,采用Agent技术、增强UDDI注册中心以及DL推理机JRacer,提出一个语义Web服务发现框架,使得请求与发布的服务能进行语义匹配,从而提高了服务的查准率和查全率。     

Metcalfe's law, Web 2.0, and the Semantic Web

The power of the Web is enhanced through the network effect produced as resources link to each other with the value determined by Metcalfe's law. In Web 2.0 applications, much of that effect is delivered through social linkages realized via social networks online. Unfortunately, the associated semantics for Web 2.0 applications, delivered through tagging, is generally minimally hierarchical and sparsely linked. The Semantic Web suffers from the opposite problem. Semantic information, delivered through ontologies of varying amounts of expressivity, is linked to other terms (within or between resources) creating a link space in the semantic realm. However, the use of the Semantic Web has yet to fully realize the social schemes that provide the network of users. In this article, we discuss putting these together, with linked semantics coupled to linked social networks, to deliver a much greater effect.     

A Requirements Driven Framework for Benchmarking Semantic Web Knowledge Base Systems

A key challenge for the semantic Web is to acquire the capability to effectively query large knowledge bases. As there will be several competing systems, we need benchmarks that will objectively evaluate these systems. Development of effective benchmarks in an emerging domain is a challenging endeavor. In this paper, we propose a requirements driven framework for developing benchmarks for semantic Web knowledge base systems (SW KBSs). In this paper, we make two major contributions. First, we provide a list of requirements for SW KBS benchmarks. This can serve as an unbiased guide to both the benchmark developers and personnel responsible for systems acquisition and benchmarking. Second, we provide an organized collection of techniques and tools needed to develop such benchmarks. In particular, the collection contains a detailed guide for generating benchmark workload, defining performance metrics, and interpreting experimental results     

使用框架构建Web应用系统

为了更好地构建易编写、结构清晰、可扩展的Web应用系统，人们提出了大量的Web框架，其中最具代表性的就是Struts。在一定程度上，Web框架达到了这一要求。文中对Struts作了简单的分析和介绍；再结合具体的Web应用要求，以面向对象的设计方法和设计模式的思想为指导，根据这些具体应用的要求和特点扩展了Struts框架。扩展后的框架较好的实现了模式一视图一控制器中的控制器层，同时也解决了一些实际的Web应用系统中的常见的如权限验证、日志记录等问题。     

语义Web及其应用

语言文Web是下一代Interuet的发展方向。语义Web的定义、分层结构进行了概述，详细总结和研究了语义Web在Web服务、P2P网络、知识管理、E-learning、智能信息检索和语义Web挖掘、网格计算等多个领域的应用。     

使用框架构建Web应用系统

为了更好地构建易编写、结构清晰、可扩展的Web应用系统,人们提出了大量的Web框架,其中最具代表性的就是Struts.在一定程度上,Web框架达到了这一要求.文中对Struts作了简单的分析和介绍;再结合具体的Web应用要求,以面向对象的设计方法和设计模式的思想为指导,根据这些具体应用的要求和特点扩展了Struts框架.扩展后的框架较好的实现了模式-视图-控制器中的控制器层,同时也解决了一些实际的Web应用系统中的常见的如权限验证、日志记录等问题.     

Using the Semantic Web for linking and reusing data across Web 2.0 communities

Large volumes of content (bookmarks, reviews, videos, etc.) are currently being created on the “Social Web”, i.e. on Web 2.0 community sites, and this content is being annotated and commented upon. The ability to view an individual's entire contribution to the Social Web would be an interesting and valuable service, particularly important as social networks are often being formed through created content and things that people have in common (“object-centred sociality”). SIOC is a Semantic Web research project that aims to describe online communities on the Social Web. This paper describes how SIOC and the Semantic Web can enable linking and reuse scenarios of data from Web 2.0 community sites, and introduces a SIOC Types module to further specify the type of content items and act as a “glue” between user posts and the content items created and annotated by users.     

Ontology在Semantic Web Services中的应用综述

介绍了Web Services的基本原理和Ontology的基本概念。基于这两种技术的结合,简单描述了多种基于本体的Web语言的发展,并重点阐述其中的OWL语言及其在Web Services中应用OWL-S的主要内容。最后介绍本体在语义Web服务中的一些拓展性的应用。     

Web 2.0在网络课程中的应用

Web 2.0技术的飞速发展为解决目前网络课程中存在的问题带来了新的思路,在介绍Web 2.0的内涵及特点的基础上,阐述了目前网络课程存在的问题,并以RSS订阅在网络课程中的实现为例展现了Web 2.0在网络课程进行应用的技术优势。