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1.
过去我们常常有一个部门叫做Interchange。它是一个联机服务和一个出版平台。它有一个复杂的用户界面,无论用于检索还是浏览都是一个优秀的环境,而且它能提供相当丰富的图形。而我曾见到过的第一个Web浏览  相似文献   

2.
Developers create semantic Web technologies (SWTs) not only to overcome the syntactic, semantic data heterogeneity problem at design time but also to support uniform agreements on the meaning of data and processes at run time. As defined in the landmark article in the space, the greatest promises of the semantic Web and SWTs are: seamless interactions among agents (people and services) based on reliable communications and uniform data and process semantics; a solution to the heterogeneity and interoperability problem in data and processes via dynamic and automatic discovery and integration; and semantic correctness and dependability (including trust and explanation of reasoning results).  相似文献   

3.
Email addresses, like telephone numbers, are opaque identifiers. They're often hard to remember, and, worse still, they change from time to time. Semantic email addressing (SEA) lets users send email to a semantically specified group of recipients. It provides all of the functionality of static email mailing lists, but because users can maintain their own profiles, they don't need to subscribe, unsubscribe, or change email addresses. Because of its targeted nature, SEA could help combat unintentional spam and preserve the privacy of email addresses and eve.n individual identities.  相似文献   

4.
应该忘掉Windows与OS/2的竞争,忘掉PC与Macintosh的对抗,新的平台之战已不再属于操作系统或者硬件设计,而是有关Internet的标准。Netscape与Microsoft已经披挂上阵,实际交火。这场战斗的利害将会对World-Wide Web的未来造成影响。  相似文献   

5.
Finding how the Semantic Web has evolved can help understand the status of Semantic Web community and predict the diffusion of the Semantic Web. One of the promising applications of the Semantic Web is the representation of personal profiles using Friend of a Friend (FOAF). A key characteristic of such social networks is their continual change. However, extant analyses of social networks on the Semantic Web are essentially static in that the information about the change of social networks is neglected. To address the limitations, we analyzed the dynamics of a large-scale real-world social network in this paper. Social network ties were extracted from both within and between FOAF documents. The former was based on knows relations between persons, and the latter was based on revision relations. We found that the social network evolves in a speckled fashion, which is highly distributed. The network went through rapid increase in size at an early stage and became stabilized later. By examining the changes of structural properties over time, we identified the evolution patterns of social networks on the Semantic Web and provided evidence for the growth and sustainability of the Semantic Web community.  相似文献   

6.
Semantic Web研究综述   总被引:10,自引:0,他引:10  
近年来,Semantic Web逐渐成为WWW领域的研究热点以及智能化网络服务和应用开发中的关键技术之一。归纳了Semantic Web技术的研究背景和主要发展历史。在分析了典型的Semantic Web概念后,给出了Semantic Web的定义。通过讨论Semantic Web构想的层次框架模型,指出了各个层次扮演的角色,并着重分析了Semantic Web的重要研究领域,指出了它们在Semantic Web构架中的核心作用。通过分析Semantic Web的应用领域和相关开发工具以及面临的问题和挑战,指明了Semantic Web研究和实践的方向。作为总结,给出了Semantic Web领域下一步的研究趋势。  相似文献   

7.
张娜 《网友世界》2014,(15):29-30
正近年来,随着电子商务的兴起和蓬勃发展,Web应用从局部化发展到全球化,从B2C(Business-to-Customer)发展到B2B(Business-to-Business),从集中式发展到分布式。Web服务作为一种新兴的Web应用模式,是一个崭新的分布式计算模型,是Web上数据和信息集成的有效机制。从电子商务应用领域来看,复杂的应用连接和程序代码造成了电子商务应用的高维护代价和更新代价,而Web服务正好能解决这一问题,成为目前应用环境中最为理想的解决方案。Web Services是松散耦合的、可复用  相似文献   

8.
There is no doubt that the enormous amounts of information on the WWW are influencing how we work, live, learn and think. However, information on the WWW is in general too chaotic, not reliable enough and specific material often too difficult to locate that it cannot be considered a serious digital library. In this paper we concentrate on the question how we can retrieve reliable information from the Web, a task that is fraught with problems, but essential if the WWW is supposed to be used as serious digital library. It turns out that the use of search engines has many dangers. We will point out some of the possible ways how those dangers can be reduced and how dangerous traps can be avoided. Another approach to find useful information on the Web is to use “classical” resources of information like specialized dictionaries, lexica or encyclopaedias in electronic form, such as the Britannica. Although it seemed for a while that such resources might more or less disappear from the Web due to attempts such as Wikipedia, some to the classical encyclopaedias and specialized offerings have picked up steam again and should not be ignored. They do sometimes suffer from what we will call the “wishy-washy” syndrome explained in this paper. It is interesting to note that Wikipedia which is also larger than all other encyclopaedias (at least the English version) is less afflicted by this syndrome, yet has some other serious drawbacks. We discuss how those could be avoided and present a system that is halfway between prototype and production system that does take care of many of the aforementioned problems and hence may be a model for further undertakings in turning (part of) the Web into a useable digital library.  相似文献   

9.
The issue of knowledge sharing has permeated the field of distributed AI and, in particular, its successor, multiagent systems. Through the years, many research and engineering efforts have tackled the problem of encoding and sharing knowledge without the need for a single, centralized knowledge base. The proposed solutions to this problem are based, more or less, on stringent assumptions, such as static, shared ontological models, or the existence of a common blackboard (or "Linda Space") environment where entities can share knowledge. However, the uptake of the World Wide Web and the emergence of modern computing paradigms, such as distributed, open systems, have highlighted the importance of sharing distributed and heterogeneous knowledge on a larger scale-possibly on the scale of the Internet.  相似文献   

10.
In this paper, we develop an intelligent environment called the personified home service system, which we have implementeA using standard Semantic Web (RDF, OWL, DAML), Web Services (SOAP, WSDL) and pervasive computing (UPnP) technologies. Extending the human-machine interaction, home devices such as sensor, TV and refrigerator could be used as interactive devices not only Mouse and CRT. It offers an incentive to device manufacturers to incorporate Semantic Web technologies into their devices in order to get the benefits of easiness and more flexibility to the users. For extensive intelligence in the system, the Semantic Web can assist the evolution of human knowledge as a whole. We analyze user's daily records and predict the user's interests, and find user's potential interest through feedbacks, The Semantic Webs will bring structure to the meaningful content of Web pages, and create an environment where software agents roaming from page to page can readily carry out sophisticated tasks for users.  相似文献   

11.
WIRED (World-Wide Web Interactive Remote Event Display) is a framework, written in the Java language, for building High Energy Physics event displays. An event display based on the WIRED framework enables users of a HEP collaboration to visualise and analyse events remotely using ordinary WWW browsers, on any type of machine. In addition, event displays using WIRED may provide the general public with access to the research of high energy physics.The recent introduction of the object-oriented Java language enables the transfer of machine independent code across the Internet, to be safely executed by a Java enhanced WWW browser. We have employed this technology to create a remote event display in WWW. The combined Java—WWW technology hence assures a world wide availability of such an event display, an always up-to-date program and a platform independent implementation, which is easy to use and to install.  相似文献   

12.
当你准备探索Internet最令人兴奋的信息王国时,是不是不知道该从何处开始?下面介绍的是许多有用、有趣并且令人着迷的Web主页(home page),你一定不要错过。  相似文献   

13.
In this system paper, we describe the DL-Learner framework, which supports supervised machine learning using OWL and RDF for background knowledge representation. It can be beneficial in various data and schema analysis tasks with applications in different standard machine learning scenarios, e.g. in the life sciences, as well as Semantic Web specific applications such as ontology learning and enrichment. Since its creation in 2007, it has become the main OWL and RDF-based software framework for supervised structured machine learning and includes several algorithm implementations, usage examples and has applications building on top of the framework. The article gives an overview of the framework with a focus on algorithms and use cases.  相似文献   

14.
Web Classification Based on Latent Semantic Indexing   总被引:2,自引:0,他引:2  
A new web document automatic classification algorithm based on Latent Semantic Indexing (LSIWAC), is proposed in this paper. LSMAC uses the LSI based on Singular Value Decomposition (SVD) to compress the document vector space to lower dimensional space. Using the optimal clustering, LSIWAC can cluster part of web documents Then, LSIWAC uses the optimal discriminate transform to get feature vector from every clustering's discriminate features. Finally, it uses the conception classification algorithm to classify the rest documents. LSIWAC solves the high dimension problem and improves the precision of web classification.  相似文献   

15.
Das Semantic Web wird seit dem visionären Artikel von Berners-Lee, Hendler und Lassila [3] allgemein als die nächste Evolutionsstufe des World Wide Web betrachtet. * Vorschläge an Prof.Dr. Frank Puppe <puppe@informatik.uni-wuerzburg.de> oder Dieter Steinbauer <dieter.steinbauer@schufa.de>Alle Aktuellen Schlagwörter seit 1988 finden Sie unter: www.ai-wuerzburg.de/as  相似文献   

16.
In the same way that Wikis have become the mechanism that has enabled groups of users to collaborate on the production of hypertexts on the web, Semantic Wikis promise a future of collaboration on the production of semantically linked and ontologically structured hypertexts. In this paper we describe our efforts to convert an existing ontologically structured web site called Framework Reference Model for Assessment (FREMA) into a Semantic Wiki specifically to enable community contribution. We compare a number of existing Semantic Wikis, and explore how the notion of semantics-on-demand affects a system's ability to control the creation of useful ontologies and annotations. The FREMA case study introduces a number of the problems we encountered and solved, and sets the template for others considering implementing web-based knowledge bases using Semantic Wikis. Our conclusions will contribute to the agenda for those implementing the next generation of Semantic Wikis.  相似文献   

17.
Ontology在Semantic Web Services中的应用综述   总被引:2,自引:0,他引:2  
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。  相似文献   

18.
Web技术与Agent技术作为两种技术体系一直独立发展.但现在Web技术借鉴Agent技术的先进思想,基于Ontology对Web进行改造,提出了Semantic Web的概念.在Internet上必将是Semantic Web和Agent共同提供智能化、个性化的服务.而要想达到这个目的,首先必须解决Ontology的构造问题.文中在详细论述Semantic Web和Agent的基础上,探讨了Semantic Web与Agent的共生及融合关系,给出了共生及融合关系图,并设计了一个概念性的智能Web服务IWS模型.  相似文献   

19.
Semantic Web与Agent的共生及融合   总被引:2,自引:0,他引:2  
李浩  沈琦 《微机发展》2003,13(11):87-90
Web技术与Agent技术作为两种技术体系一直独立发展。但现在Web技术借鉴Agent技术的先进思想,基于Ontology对Web进行改造,提出了Semantic Web的概念。在Internet上必将是Semantic Web和Agent共同提供智能化、个性化的服务。而要想达到这个目的,首先必须解决Ontology的构造问题。文中在详细论述Semantic Web和Agent的基础上,探讨了Semantic Web与Agent的共生及融合关系,给出了共生及融合关系图,并设计了一个概念性的智能Web服务IWS模型。  相似文献   

20.
Semantic Web,Agent和网络虚拟社会   总被引:2,自引:0,他引:2  
1.引言最初的计算机是用于计算的设备。到了80年代,PC发展成多功能(如:游戏,文本处理和PowerPoint呈现等)的系统。现在计算机变成了接入互联网的入口。互联网技术正飞速发展,使人们足不出户就能处理很多和外界交互的事务。网络席卷全球,成为人们生活不可或缺的一部分。美国网址专家也是网址杂志的创办人凯利说:自网景公司于6年前申请上市以  相似文献   

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