共查询到19条相似文献,搜索用时 156 毫秒
1.
2.
3.
随着计算机资源的爆炸性增长,传统的基于目录的资源管理方式已经不能很好满足用户的实际需求.语义桌面基于语义检索,提高了计算机资源查找的效率,并能挖掘出存在语义联系的不同资源.基于装备领域中各业务参谋分管业务的不同,提出建立满足业务需求和适合个人习惯的个人主观本体,实现基于语义桌面的语义检索功能.应用语义网和本体的相关知识,提出了装备领域的语义桌面体系结构,采用“骨架法”建立了适合语义桌面的个人主观本体,在此基础上实现语义桌面检索功能,大大提高了资源的检索效率. 相似文献
4.
本文从图像语义模型、图像语义的描述方法、图像语义的提取方法三方面介绍基于语义的图像检索技术的发展动态,并根据研究现状,进一步分析如何有效地解决“语义鸿沟”问题。 相似文献
5.
6.
语义传感器Web是由传感器网络技术、分布式计算技术、数据库管理技术和语义Web技术整合发展而来的.语义传感器Web能够感知、收集、整合信息,抽取新的知识并为感知器提供增强语义,因此能对环境的变化有更智能的感知,用户可以通过访问Web获取这些信息.作为计算机科学中一个新的研究领域,它有着广阔的应用前景,引起了工业界和学术界浓厚的兴趣.介绍了语义传感器Web的基本概念、特点,并着重讨论了语义传感器Web数据管理中所存在的研究问题、研究现状和研究成果. 相似文献
7.
8.
语义桌面作为语义Web的一个重要分支,可以为个人计算机用户提供丰富的元数据,用以记录桌面文档的各种特征。这些特征包括文件的常规属性和与用户行为相关的属性,它们为桌面文档检索提供帮助。受到"概念图"理论的启发,本文提出了一种语义桌面环境下的文档检索算法。该算法能有效地利用语义桌面提供的元数据建立一种便于快速查找的文档索引结构,迅速地确定用户查询与桌面文档之间的投影算子。实验表明,该算法的时间效率比以往的基于匹配推理的投影算法有很大的提高,可以在很大程度上满足用户对桌面文档进行快速检索的需求。 相似文献
9.
10.
11.
This paper describes the particular requirements of knowledge work in an industrial setting and its support by semantic technologies. This setting is characterized by specific demands with respect to information handling, communication and work coordination. It is shown how semantic technologies can meet these demands. Specifically, the Social Semantic Desktop (SSD) is discussed that covers requirements for individual structuring and proceeding as well as organizational needs. It is discussed which aspects come to the fore in an industrial setting and require particular consideration. Here we find a focus on communication and on work coordination. The latter is addressed by semantic task management and allows for new approaches towards experience management in industry. In this respect the SSD opens up completely new opportunities. It is shown how such a framework has been realized in the European Integrated Project Nepomuk. 相似文献
12.
13.
语义Web技术应用于上下文感知的智能移动服务,通过构建上下文信息本体,使得移动服务的实体之间可以进行上下文信息共享和语义互操作,并进行上下文信息推理,实现智能服务。本文首先介绍了语义Web及本体技术,其次阐述了语义Web技术应用于上下文感知的移动服务,然后详细分析了智能移动服务中的上下文信息本体构建,包括通用的上下文信息本体、用户概况本体、情境本体以及服务本体等,接着介绍了相关的研究项目,最后进行展望和总结。 相似文献
14.
《Intelligent Systems, IEEE》2009,24(5):5-8
"AI and the Mobile Cloud," explores the growing use of cloud computing to deliver AI-empowered applications to mobile devices. Over time, mobile devices could become the principal means by which users interact with cloud-based, autonomously operating agents. "A Fish Called Filose" describes efforts of researchers at four European universities to design a fishlike marine robot that can navigate shallow waters or tricky currents. "Desktop Data Organization Grows Up" describes the emerging semantic desktop, a personal version of the Semantic Web for organizing an individual's thousands of files, e-mail messages, and other digital data in an graph of related items. 相似文献
15.
基于语义的Web挖掘 总被引:5,自引:0,他引:5
基于语义的Web挖掘是使用从现有Web数据中抽取的语义或直接使用Web数据中已有的语义结构来帮助Web挖掘。它有效地结合了语义网和Web挖掘两个领域的研究成果,既可以通过开发新的语义结构来帮助Web挖掘,又可以利用挖掘结果促进语义网的创建。本文介绍了基于语义的Web挖掘的基本思想和研究现状,分析了语义网和Web挖掘相结合的优势,并详细论述了国际上关于利用数据挖掘技术创建语义网,利用语义挖掘Web数据和直接挖掘语义网三个方面的研究工作。 相似文献
16.
Magpie has been one of the first truly effective approaches to bringing semantics into the web browsing experience. The key innovation brought by Magpie was the replacement of a manual annotation process by an automatically associated ontology-based semantic layer over web resources, which ensured added value at no cost for the user. Magpie also differs from older open hypermedia systems: its associations between entities in a web page and semantic concepts from an ontology enable link typing and subsequent interpretation of the resource. The semantic layer in Magpie also facilitates locating semantic services and making them available to the user, so that they can be manually activated by a user or opportunistically triggered when appropriate patterns are encountered during browsing. In this paper we track the evolution of Magpie as a technology for developing open and flexible Semantic Web applications. Magpie emerged from our research into user-accessible Semantic Web, and we use this viewpoint to assess the role of tools like Magpie in making semantic content useful for ordinary users. We see such tools as crucial in bootstrapping the Semantic Web through the automation of the knowledge generation process. 相似文献
17.
随着云平台的飞速发展,移动办公、BYOD办公已经席卷全球,各个企业更是将云桌面办公作为首选,建立基于云服务的云桌面环境。然而,新的办公环境也将引入新的安全问题。目前云桌面安全的研究尚未成体系,云桌面的防御知识相对匮乏,国内也缺少全面、系统、有效的防御方案。云桌面的虚拟化结构决定了其不再是糖葫芦串式的防御结构,在一定程度上云桌面服务器防御比传统服务器更敏感。文章通过对云桌面的防御体系架构分析,提出了一套适用于云桌面的攻防反馈防御图的主动防御方案,将其防御结构过程和攻击结构过程展现出来,通过防御分析进行定向攻击设计,并基于生成的攻击图进行安全防御的反馈,再进行防御图的优化。文章采用了逆向广度搜索算法寻找攻击脆弱点,不漏掉不重复任何一个可靠的攻击路径。文章引入了攻防博弈模型,实现符合适度安全原则的防御优化方案。最后,文章通过某著名的云桌面提供商实验展现云桌面攻防反馈图的仿真过程。 相似文献
18.
19.
Semantic annotation, indexing, and retrieval 总被引:3,自引:0,他引:3
Atanas Kiryakov Borislav Popov Ivan Terziev Dimitar Manov Damyan Ognyanoff 《Journal of Web Semantics》2004,2(1):49-79