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1.
MPEG-7与数字图书馆的信息检索   总被引:3,自引:0,他引:3  
MPEG 7称为“多媒体内容描述接口” ,主要由描述器 ,描述方案和描述定义语言组成。MPEG 7与数字图书馆之间具有许多协同性 ,MPEG 7中定义的多媒体内容描述将使数字图书馆的信息检索具有更大的效率 ,也可以较好地解决目前不同数字图书馆中的互操作性和没有统一标准的问题。图 2。参考文献 9。  相似文献   

2.
MPEG-21多媒体框架标准最新进展   总被引:1,自引:0,他引:1  
介绍MPEG-21多媒体框架标准制定的最新进展情况,对该标准已开发完毕和正在开发中的18个部分进行简单说明;归纳总结MPEG-21标准的总体框架结构,描述该标准18个部分间的相互关系;简要分析MPEG-21 DIDL 作为一种基于XML的复合数字对象打包标准规范在数字图书馆中的应用现状,并对MPEG-21标准在数字图书馆中的应用前景作一展望。  相似文献   

3.
MPEG-21是21世纪新的多媒体标准,也称多媒体框架标准.本文介绍了MPEG-21产生的背景和目标、内容、应用范畴、所要解决的关键问题及该标准制订的最新进展.  相似文献   

4.
杨子伍 《图书馆学刊》2006,28(5):126-127
通过对MPEG7的介绍,讨论了基于内容的多媒体检索技术,叙述了搜索引擎的系统结构和各模块的具体实现,展望了基于内容的多媒体检索技术在数字图书馆中的应用价值。  相似文献   

5.
在介绍了数字图书馆等概念的基础上,简要地介绍了基于Multi-Agents(MAS)的多媒体信息检索引擎在数字图书馆中的应用,并结合当前的研究状况,描述了基于MAS的多媒体信息检索引擎应用的光明未来。  相似文献   

6.
本文论述了基于内容的多媒体信息检索在数字图书馆中的应用,指出了存在的问题及其发展趋势,以使数字图书馆中的多媒体信息得以有效管理与充分开发利用。  相似文献   

7.
多媒体文献的现状、问题及对策   总被引:5,自引:0,他引:5  
本文阐述了多媒体文献的概念,描述了其发展现状,并根据其内容题材和载体形态,对现有的多媒体文献进行了类型划分;同时,分析了多媒体文献的优势,探讨了在其开发过程中需要注意的一些问题及相应对策。  相似文献   

8.
数字化网络化导致大量多媒体信息资源的出现,而目前基于关键词的检索方对于多媒体数据检索显得有些相形见绌,于是基于内客的多媒体信息存取检索技术应运而生。MPEG—7作为一个多媒体内容描述的标准,对多媒体信息进行标准化描述,从而实现对于多媒体内容快速有效的检索。  相似文献   

9.
数字图书馆用户界面研究   总被引:4,自引:0,他引:4  
本文简要介绍了数字图书馆用户界面的三种模式,即自适应可视化界面、统一用户界面、拖放多媒体界面,论述了数字图书馆用户界面评价指标和优化数字图书馆用户界面的三种措施。  相似文献   

10.
数字图书馆中基于内容的多媒体数据查询和检索技术   总被引:6,自引:0,他引:6  
着重阐述了数字图书馆中基于内容的多媒体数据查询和检索技术。  相似文献   

11.
ABSTRACT

The article examines the most important periodicals of ethnic minorities in Poland. After 1989, many ethnic groups (e.g., Germans and Romanies) were allowed to publish journals and newspapers for the first time since the end of World War II. The publications examined show the rich cultural life of the various ethnic groups as well as their current status in Poland. In addition to popular titles, some scholarly publications are also discussed.  相似文献   

12.
ABSTRACT

In today's current political environment raising support for millage renewals, bond campaigns or even millage continuations for public libraries is affected by national politics, and a tendency towards tax aversion on principle across the country. The lessons we can learn from the governing boards of small and rural public libraries are worth raising up to a greater national consciousness. Board governance, community consciousness, and facilities management are clear and logical tools that elected boards of public libraries can use to politick for support of libraries.  相似文献   

13.
The author answers a reference question on bibliographic sources for the Ukrainian periodical press 1840–1850. Helpful publications include bibliographies, guides, and library catalogs. These potentially make mention of revolutionary developments in Hungary (such as the Twelve Points paragraph of the Demands of the Hungarian Nation in March 1848, the subsequent April Laws, and Hungary's declaration of independence in April 1949), and elsewhere in the Hapsburg Empire.  相似文献   

14.
ABSTRACT

The history of the almanac in Croatia is reconstructed through primary research in bibliographic and archival sources. The almanac is a vehicle for knowledge communication in informal contexts, engaging both oral tradition and literary forms traceable to medieval literacy and ways of structuring knowledge. The history of the almanac in Croatia reflects the changing context of the book trade, literacy, and the evolution of language. Four main stages are identified: (1) the beginning of the annual almanac in the seventeenth century; astrological almanacs reflecting the sensibility of the Baroque period; (2) the Enlightenment's stimulation of almanac publishing in the spirit of contemporary secular reforms in agriculture and education; (3) nineteenth-and twentieth-century almanac trade, showing complex and overlapping networks for the production, distribution and appropriation of printed almanacs;(4) roughly the end of World War II, when the almanac slowly moved out of the role of a popular mass medium and into specialized niches represented by regional, diaspora, and religious almanacs.  相似文献   

15.
Some key questions for publishers in today’s market are: Could Amazon’s recent merger and acquisitions strategy create a disruptive or paradigm shifting business model in the publishing industry? Do their recent actions post mergers and acquisitions illustrate a predicable pattern of behaviour that publishers can strategize around? This paper will explore these questions and look at some of the possible reasons behind Amazon’s business practices and the possible consequences to publishers.  相似文献   

16.
ABSTRACT

German authorities are expecting more than 1 million refugees by the end of 2015. These people come to Germany to seek protection and assistance and to build a new life, therefore it is important to welcome them and to assist them in their integration as soon as possible. This situation creates a versatile and perfectly fitting opportunity for cultural and educational programs, including libraries, which can play a vital role in this integration process. The key to integration is the knowledge of the German language, and the most important challenge now is to teach the necessary language skills to as many asylum-seekers as possible.  相似文献   

17.
Abstract

Many libraries use RSS to syndicate information about their collections to users. A survey of 65 academic libraries revealed their most common use for RSS is to disseminate information about library holdings, such as lists of new acquisitions. Even though typical RSS feeds are ill suited to the task of carrying rich bibliographic metadata, great potential exists for developing applications that can exploit metadata exposed to Web services via RSS. Using the MODS metadata format, entire catalog records can be seamlessly embedded in RSS 2.0 feeds. Existing tools, such as Library of Congress Java toolkits and XSLT stylesheets, can facilitate this process, while a new XSLT stylesheet may be used to create the RSS feeds complete with MODS records. As an example of the added functionality these MODS/RSS feeds can offer, records from a MODS-enriched RSS feed can be ingested into a non-RSS application such as Zotero. As more emerging library technologies use Web services architectures to handle data objects, the ability to syndicate catalog records will become more critical to providing innovative library Web services.  相似文献   

18.
This essay investigates key moments in the history of personal digital assistant (PDA) marketing to women. Analyzing promotional texts for three PDAs that received considerable press coverage from 1999 to 2001, this essay explores the cultural significance of the convergence of anxieties about women's place in the gendered division of labor with the computer industry's changing marketing imperatives. Drawing on an array of promotional texts, including news articles, press releases, promotional Web sites, and ads appearing in newspapers and magazines, this paper tells the story of how the computer industry aimed to sell smaller, faster computing devices to women while promising to mediate and thus reproduce women's overwork as paid and familial laborers. After experimenting with the PDA as a sexy fashionable gadget for working women, marketers approached women as mothers with “Audrey,” an Internet appliance designed for the kitchen.  相似文献   

19.
This study explores the attitudes and actions of bank managers toward communication spending during recession. Results of this study indicate that organizational leaders cut communication spending early during recession and also erroneously rely on the bank's financials to mitigate irrational customer withdrawals. This research is used to illustrate the need for public librarians to meet the needs of bank stakeholders when their institution ceases to communicate during crises, for academic librarians to educate students in undergraduate and graduate programs regarding heightened information needs during recession, and for corporate librarians to understand a potential avenue for competitive advantage during recession.  相似文献   

20.
毛彦妮  王菲菲 《图书情报工作》2012,56(18):93-98,126
指出共链分析已在商务网站评价、竞争情报分析、商业信息挖掘等领域有广泛应用。综合运用共链分析与社会网络分析的方法,对国内市场份额排名前50位的电子商务网站的企业竞争态势与竞争关系及地位进行综合分析,并对企业间潜在竞争关系挖掘进行初步探索,以期能对竞争情报方法论研究和国内电子商务市场的发展提供一定的启示和参考。研究发现,共链网络中节点的程度中心性与企业实际的市场份额之间存在显著的相关关系,且竞争关系多存在于不同组织下业务类型相似的企业实体,而有些互补服务的企业之间则是合作关系的存在,这一发现或许能为未来电子商务市场发展战略规划与制定提供一定的指导和帮助。  相似文献   

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