共查询到19条相似文献，搜索用时 171 毫秒
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因特网上金融证券信息检索策略与技巧 总被引：5，自引：1，他引：4
阮建海 《现代图书情报技术》2001,17(4):68-71
Internet 网上有着丰富多样的金融证券信息资源, 开发利用好网上金融证券信息则成为信息资源开发利用的热点问题。本文在介绍Internet 网上金融证券信息资源现状的基础上, 探讨了网上金融证券信息获取的方法和途径, 并着重对因特网上金融证券信息的检索策略进行了讨论, 指出了提高因特网上金融证券信息检索查全率, 尤其是查准率的原则与技巧。 相似文献
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本论述了农村信息的需求特点，网上农业信息资源的分布、收集与整理。利用网上农业信息应该注意的几个问题。并提出通过网络发布各种农业信息，丰富网上农业信息资源。 相似文献
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图书馆网络证券信息的检索与开发利用 总被引：7，自引：3，他引：4
陈红 《现代图书情报技术》2001,17(2):69-71
论述了人们从图书馆获取金融证券信息的需求, 网络环境下图书馆如何开展金融证券信息服务, 在实际工作中发现的网上证券交易的不足与不便以及如何完善和改进网络金融证券信息开发与服务。 相似文献
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网上中文社会科学信息资源学科分布初探 总被引：3，自引：1，他引：2
为了全面认识网上中文社会科学信息资源的整体水平 ,进一步开发和利用网上中文社会科学信息资源 ,本文通过网站搜索、类目划分、栏目设置三种途径 ,从学科的角度对网上中文社会科学信息资源进行了初步测试与分析 ,描述网上中文社会科学信息资源学科分布的总体特征。最后提出组织与管理网上中文社会科学信息资源的几点建议。 相似文献
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基于用户需求的信息资源整合研究与实践 总被引：1，自引：0，他引：1
文章论述了网上信息资源的分类、特点和华南理工大学图书馆根据用户需求,利用网上丰富的信息资源,开展馆藏文献、免费报刊、电子全文、专利文献等信息的整合与实践,并提出网上资源整合中应注意的问题。 相似文献
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张桂玲 《现代图书情报技术》2003,(1):72-75
著者通过对具有代表性的搜索引擎在提供金融证券信息方面的性能进行测试与评价，从而得出综合性搜索引擎和专业性搜索引擎在提供信息方面的特征，以期使用户能够根据需要有针对性的选择搜索引擎，提高网上金融证券信息检索的相关性。 相似文献
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互联网与中华文化的对外传播 总被引：2，自引：0，他引：2
全球性的新型传播载体———因特网络的崛起 ,为文化的传播提供了便捷的新渠道。本文探讨中华文化的对外传播 ,主要聚焦于网络在传播领域的异军突起对于中华文化的对外传播的影响。文章以中华文化在海外华人社区中的传播为切入点 ,从网络在拓展海外华文媒体传播中华文化的作用中的潜力着手 ,进而论及面对英文的西方文化信息在网上的强势地位 ,加强传播中国文化的中文信息的网络化建设之现实迫切性。 相似文献
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《Library & information science research》2014,36(3-4):163-170
The preferences of the authors of Chinese library and information science (LIS) journal articles in citing Internet sources were investigated using eight premium Chinese LIS journals from Chinese Social Sciences Citation Index (the observation group) and 10 journals in other disciplines (the control group) from the same database from 1999 to 2008. A total of 252,881 citations were analyzed in terms of count, domain name, and citing purposes. The results show that (a) in comparison to the disciplines in the control group, LIS articles in Chinese journals indicated a strong preference for citing Internet sources, and this preference is increasing; (b) LIS articles did not seem to discriminate against domain names when citing Internet sources; and (c) LIS articles cited more Internet sources as evidence to support research results and conclusions. Excessive dependency on Internet sources may raise concerns over the quality, research ethics, and credibility of research publications. Chinese LIS researchers should place more emphasis on the disadvantages of Internet sources as supporting material. Guidelines and criteria to help researchers, journal editors, students, and librarians assess information on the Web need to be developed. 相似文献
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本文阐述了一项由全美医学图书馆联盟中南区中心资助的研究项目。其目的是了解北美华人对健康信息的需求及网络健康信息资源的使用状况。本研究回收了101份调查表。研究结果发现调查对象有兴趣了解更多关于乳腺癌、糖尿病、乙型肝炎等疾病的信息,愿意学习如何使用互联网络查找高品质的健康信息资源。语言障碍以及对美国医疗体系知识的缺乏了解是调查对象在获取医疗健康信息中遇到困难的主要原因。面对这些需求和问题, 指出认识语言和文化的差异性,推荐权威性、可靠性、针对性强的高质量的健康信息资源,介绍网络健康信息质量评估方法, 将有助于对华人的医疗健康信息服务。 相似文献
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国内外网络信息资源评价研究进展* 总被引：6，自引：0，他引：6
对20世纪90年代以来国内外网络信息资源评价的相关期刊论文（国外200篇，国内80篇）进行统计分析，得出国内外的网络信息资源评价研究的发展与变化情况，并在此基础上，对未来发展方向进行展望。 相似文献
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构建网络信息的安全防护体系 总被引：20，自引：0，他引：20
本文通过查阅大量国内外有关网络信息安全的文献资料及有关标准 ,在深入细致研究了网络信息安全的概念、特点的基础上 ,对我国企业的网络信息安全现状做了大量的调查分析 ,结合ISO17799《网络信息安全管理标准》 ,提出了一套完整的企业实现网络信息安全的防护体系及措施方案 ,使企业的网络信息风险降低到可接受的程度 相似文献
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Xiaoying Dong 《International Information and Library Review》2003,35(2-4):163
This study examines the use of Internet resources and the evaluation of their usefulness from the perspectives of Chinese students and academics. The questionnaires were distributed at Peking University, ISTIC, and at the Information Institute of Science and Technology of Zhe Jiang Province, where 706 valid samples were collected. The data was analyzed according to: The background of the Internet users; the standard of Internet resources; Internet information-seeking behaviour; users’ evaluations of Internet resources and their perceived expectations about future Internet services. The study found that users with higher educational degrees tend to spend more time on the Internet and find Internet resources more useful than less-educated users. Although Internet search engines are the preferred information retrieval tool, other traditional or informal retrieval methods are also used. Many respondents agree that the Internet is helpful for narrowing the knowledge gap between developed and developing countries. Besides its richness and high speed, accuracy and authority are the most important factors when users judge the quality of the Internet; but, more specialized information filtering and navigation services are required. Further studies should focus on the information-seeking behaviour of different target groups, and with specific comparisons of Chinese academic users from economically developed areas, versus users from China's comparatively undeveloped Northwest provinces. 相似文献
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This research examines privacy law and Human Flesh Search (HFS) on the Chinese Internet. HFS is spontaneous, widely participated search and publication of targeted individuals’ personal information on the Internet. This research sees HFS as an important form of non-institutional information gathering and publication, and argues that the regulation of HFS is not only about privacy but also line-drawing for information collection and dissemination in the digital setting. Therefore, legal instruments and court cases in relation to HFS and online privacy must be assessed as important components of the Chinese state’s Internet regulatory scheme. This research finds that the paired concepts of ‘flexibility and populism,’ key features of legal reform and development in contemporary China, are highly relevant to analyze the growth of digital privacy laws in China. The political-legal authorities’ experimentation and innovation in the development of the law shed important light on how China’s Internet governance adapts to changing circumstances and strives to keep pace with profound social transformations in new technological environments. 相似文献
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Xiaoying Dong 《International Information and Library Review》2013,45(2-4):163-187
This study examines the use of Internet resources and the evaluation of their usefulness from the perspectives of Chinese students and academics. The questionnaires were distributed at Peking University, ISTIC, and at the Information Institute of Science and Technology of Zhe Jiang Province, where 706 valid samples were collected. The data was analyzed according to: The background of the Internet users; the standard of Internet resources; Internet information-seeking behaviour; users’ evaluations of Internet resources and their perceived expectations about future Internet services. The study found that users with higher educational degrees tend to spend more time on the Internet and find Internet resources more useful than less-educated users. Although Internet search engines are the preferred information retrieval tool, other traditional or informal retrieval methods are also used. Many respondents agree that the Internet is helpful for narrowing the knowledge gap between developed and developing countries. Besides its richness and high speed, accuracy and authority are the most important factors when users judge the quality of the Internet; but, more specialized information filtering and navigation services are required. Further studies should focus on the information-seeking behaviour of different target groups, and with specific comparisons of Chinese academic users from economically developed areas, versus users from China's comparatively undeveloped Northwest provinces. 相似文献
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一种基于SOM的中文Web文档层次聚类方法 总被引：10，自引：0，他引：10
近年来Internet迅猛发展 ,网上的信息急剧膨胀 ,如何高效、高质量地检索到用户所感兴趣的中文信息资源 ,是当前我国Internet资源发现的热点问题之一。本文将神经网络聚类方法之一SOM(Self OrganizingMap ,自组织特征映射 )的思想和方法引入中文Web搜索引擎 ,首先探讨了其网络模型和算法 ,而后提出一种聚类用户所感兴趣的中文Web文档的层次聚类方法 ,从而提高中文Web文档的检索质量 相似文献