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数字图书馆是随迅速发展的信息技术产生的图书馆新形态,经过对数字图书馆20年的研究和实践,国内很多数字图书馆建设和服务中应用的技术已经非常成熟。文章通过对21世纪以来我国关于数字图书馆应用技术的期刊论文进行统计和计量分析,在初步了解数字图书馆技术发文量趋势之后进行聚类分析,将数字图书馆技术分为十类,并生成了可视化图谱,从而更深入地了解数字图书馆各种技术及其关联结构。 相似文献
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XML技术及在数字图书馆建设中的应用 总被引：4，自引：0，他引：4
徐仲 《图书馆理论与实践》2002,(2):59-60,86
通过对XML技术在数字图书馆建设中应用的论述，说明XML将对整个数字图书馆的未来产生重要的影响。 相似文献
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＂以读者为本＂是数字图书馆生存和发展必须坚持的理念。将SNS成功引入数字图书馆,可改善数字图书馆的服务,提升数字图书馆的服务质量。在分析国内外数字图书馆应用SNS技术的基础上,设计出将SNS应用于数字图书馆的功能模块。 相似文献
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基于多域和层次结构的网格数字图书馆 总被引：5，自引：0，他引：5
数字图书馆的超大容量数据决定了现有的数字图书馆一定要采用分布式技术，资源的多样化特性决定了数字图书馆需要采用统一的平台来屏蔽资源的异构性。网格技术在以上两个方面都能满足数字图书馆的需求。网格技术与数字图书馆的结合是数字图书馆的发展趋势。本文在将数字图书馆和网格结合的基础上提出了基于多域和层次结构的网格图书馆。 相似文献
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信息过滤技术在数字图书馆的应用 总被引：10，自引：1，他引：10
信息过滤技术将在数字图书馆个性化服务中起重要作用。可以构建一个基于信息过滤技术的数字图书馆模型。它主要包括信息检索模块和信息过滤模块。图1。参考文献4。 相似文献
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在CADAL中应用文语转换技术 总被引：2，自引：0，他引：2
本文将对在"中美百万册数字图书馆(简称CADAL)"项目中提供文语转换所涉及的语音合成技术以及如何利用该技术在数字图书馆进行阅读遇到的问题进行讨论并提出解决方法. 相似文献
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相比于数字图书馆中的可控高质量文档信息,互联网上提供了大量非结构化信息,如何有效利用这些信息成为当前的研究热点。本文提出将基于本体的主题爬虫技术应用在数字图书馆中,作为数字图书馆和互联网间的桥梁和媒介,利用丰富的网络资源来扩展数字图书馆。 相似文献
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基于3G技术的数字图书馆服务体系构建 总被引：1，自引：0，他引：1
文章从3G的核心理念和数字图书馆的服务宗旨出发,探讨了3G环境下数字图书馆发展的局限性,将三网融合技术引入到数字图书馆服务体系构建中,从三网融合的角度构建了新环境下数字图书馆的服务模型,并对模型中使用的相关技术进行总结归纳,提出了该服务模型的实现策略。 相似文献
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在分析信息组织模式沿革的基础上,从微观和宏观上阐述了数字图书馆信息组织模式的现状与不足.将本体论的理念和技术引入数字图书馆信息组织模式中,提出下一代数字图书馆信息组织模式的构想--知识组织、面向用户. 相似文献
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Attributional bias research suggests that those who find it difficult to communicate in a foreign language will explain their inability in ways that pose the least threat to a positive self image. The applicability of this reasoning to foreign language communication was tested in a two (writing in English or in a foreign language) by two (subject familiarity) factorial experiment. As expected, writing a message in a foreign language led to perceptions of reduced motivation. Participants who communicated in a foreign language about familiar others reported lower levels of perceived foreign language skill than those who communicated in a foreign language about an unfamiliar person. Participants who described unfamiliar persons in a foreign language reported greater familiarity with these persons than participants describing unfamiliar persons in English. Results support the claim that attributional biases may affect some foreign language communication tasks. 相似文献
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《Microprocessing and Microprogramming》1994,40(10-12):905-908
The query language OVAL which is intended for the integration with the database programming language based on C++ is proposed in this paper. The work addresses the impedance mismatch problem [1] between the syntax and the semantics of the programming and query language. The query language OVAL is based on the functional query language FQL [3] extending it for the manipulation of complex objects. The salient features of the OVAL query language are: (i) functional nature of the query language, which makes the language suitable for the integration with the procedural programming languages and provides modular style of query definition, (ii) the use of schema information for expressing queries and (iii) recursive evaluation of the algebraic operations on set structured complex objects. 相似文献
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Language distribution in scientific communication reflects the influence of different languages on science in global perspective. The study, based on over 450 thousand scientific tweets of all publications indexed by Scopus in June 2015, reveals the language distribution in informal scientific communication. Moreover, this result is compared with the language distribution in formal scientific communication reflected in scientific publications. Results show: (1) The language of scientific tweets is concentrated in English (91%), Japanese (2.4%) and Spanish (1.7%), while the language of scientific publications is concentrated in English (90.6%), Chinese (5%) and German (1.1%). (2) Both scientific tweets and scientific publications present disciplinary differences in language distribution, reflecting the different amount of attention that authors of different languages have on certain disciplines. (3) Except Saudi Arabia, investigated countries all over the world, regardless of whether their native language is English or not, all have English scientific tweets in the dominant position. For the vast majority of these countries, the native language scientific tweets only rank the second position. (4) Overall, 26% of tweeters use more than one language to tweet scientific products, while 49% of scientific tweeters tweet everything in English only. The results indicate that English has undoubtedly become the lingua franca in informal scientific communication. 相似文献
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为了满足日益增长的对专利检索的需求,国家高技术研究发展计划(863计划)启动了族性化学结构数据库系统的研究与开发。族性化学结构数据库系统主要涉及两方面的关键技术:(1)族性化学结构的计算机表达, (2)族性化学结构的检索算法。本文主要讨论族性化学结构的计算机表达。存在于化学专利原始文献中的族性化学结构是用具有一定规范的自然语言表述的。为了能在计算机系统中储存与检索这些信息,自然语言表述的族性化学结构必须转换为计算机可以接受的无歧义的形式语言。这个过程叫做族性化学结构的标引。国际上一般采用的基于结构片断的族性化学结构标引形式语言开发于20世纪70～80年代,这种形式语言与化学家采用的图形自然语言相去甚远,标引速度慢,成本高。本文介绍在ISIS/Draw绘图功能基础上发展起来的标引族性化学结构的图形形式语言,它的主要特点是与化学家日常使用的图形自然语言接近,规则简单易于掌握,从而提高标引效率,降低族性化学结构数据库系统的实现成本。 相似文献
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近两年来,神经机器翻译（Neural Machine Translation, NMT）模型主导了机器翻译的研究,但是统计机器翻译（Statistical Machine Translation, SMT）在很多应用场合（尤其是专业领域）仍有较强的竞争力。如何利用深度学习技术提升现有统计机器翻译的水平成为研究者们关注的主要问题。由于语言模型是统计机器翻译中最核心的模块之一,本文主要从语言模型的角度入手,探索神经网络语言模型在统计机器翻译中的应用。本文分别探讨了基于词和基于短语的神经网络语言模型,在汉语到英语和汉语到日语的翻译实验表明神经网络语言模型能够显著改善统计机器翻译的译文质量。 相似文献
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双语教材具有专业和语言两个特征,《中国图书馆分类法》(以下简称《中图法》)的主表揭示其专业特征,而复分法和组配法都可以作为揭示其语言特征的辅助手段。通过比较复分法和组配法得出,双语教材更适合利用复分表揭示其语言特征,具体做法为:在《中图法》(第5版)的"总论复分表"中增加新类目"-9语种",并且依据H大类下的各语种类目扩展下位类。 相似文献
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Jonathan J. Edwards 《传播与批判/文化研究》2013,10(1):102-120
This essay focuses on the language of domestic radicalization as it has been invoked in recent debates regarding homeland security and the specter of homegrown Islamic terrorism. The language of radicalization is not new. However, beginning in 2004 and 2005 this language began to be appropriated into legislative and law enforcement discussions of domestic terrorism and national security. Using the rhetorical figure of polyptoton as a critical frame, this essay explores how the language of radicalization has evolved and how it has come to shape available arguments and define the legitimacy of participants (and non-participants) within recent congressional hearings and legislation. 相似文献
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《Journal of Radio & Audio Media》2013,20(2):181-199
A content analysis examined offensive language spoken on popular morning radio programs on the five highest-rated radio stations offering live-streaming audio over the Internet in the top 10 US markets. While concerns over indecency have long existed, renewed interest in the issue of indecency on television and radio was sparked during the 2004 Super Bowl half-time show and, as evident in the 2007 firing of radio personality Don Imus, continues to be of concern today. The purpose of this study was to identify the amount and kind of offensive language spoken on-air. Overall, there were 872 instances of offensive language or 4.36 words spoken per hour. Of these, words classified as mild (words such as “hell” and “damn”) were the largest proportion (40.9%). The bulk of crude language was spoken on Rock and Popular formats. Additionally, broadcasts in the northeast part of the country contained significantly more instances of offensive language. 相似文献