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互联网的信息检索技术 总被引：11，自引：0，他引：11
本文从Internet信息检索的问题和困难出发,介绍了目前的研究现状和水平.然后对Internet上传统的信息检索工具Archic、WAIS、Gopher、Veronica进行了介绍.WWW的出现使得人们检索和获取信息的方式发生了本质改变,因此本文重点论述了WWW上的信息检索技术.从WWW的工作原理到WWW的浏览程序Netscape,最后详细地介绍WWW的各种检索工具并对它们进行了评价. 相似文献
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分析了Internet信息资源的类型和特点,介绍了Internet信息资源检索方法,针对影响Internet信息资源检索的因素,提出了提高Internet信息资源检索效率的对策。 相似文献
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关于Internet应用于科技资源的献多数是围绕献检索、专业网站信息介绍等方面，而对于诸如检索后的全查找和获取等相关方面涉及较少。本简要介绍如何在Internet上查询常见科技献类别，并提出了一些免费的解决方法。 相似文献
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介绍两种在Internet上免费检索美国国家医学图书馆Medline数据库的检索方法。 相似文献
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如何通过Internet网络检索国外数据库 总被引：5，自引：0，他引：5
陈朝晖 《现代图书情报技术》1995,11(6):33-37
本文用实例介绍了通过Internet 互联网检索国外数据库的原理、方法、费用及使用效果等问题, 同时还介绍了非网上用户与Internet 互联的方式及网上的数据库资源等。 相似文献
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Internet上有大量的免费专利数据库资源,从Internet上检索专利方便快捷.本文介绍了国内外可免费获得的专利全文的专利信息检索网站的网址及其检索方法. 相似文献
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基于Internet的Dialog系统检索平台 总被引：9，自引：1，他引：8
李湖生 《现代图书情报技术》2001,17(1):57-59
在Internet 网络迅猛发展的今天, 国际著名的Dialog 联机系统顺势而为, 又开发了基于Internet 的几种检索平台, 作为向用户服务的窗口。本文介绍了DialogClassic、DialogL ink、DialogSelect、DialogW eb 等检索平台的特点和使用方法, 并结合实例对各种检索平台进行了综合比较, 对它们的发展前景进行了预测。 相似文献
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WWW上的MEDLINE联机检索 总被引：2，自引：0，他引：2
Medline是目前最常用的生物医学数据库。本文在简单回顾Medline发展史的基础上,重点介绍了一种通过Internet上的World Wide Web(WWW,环球网)实现Medline联机检索的方法。这种针对所有Internet联网用户的检索准确可靠、快速高效、简便易行。是光盘版Medline之后的又一重要检索途径。 相似文献
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This study reports the results of a survey conducted at Aligarh Muslim University (AMU) to determine the extent to which Internet users are aware and make use of the Internet resources and services. The study examines the information searching behavior of Internet users. A questionnaire and follow-up interviews with the postgraduate students, research scholars and academic staff were conducted to collect data. A total of 489 questionnaires were distributed to the selected sample of eight faculties; 405 valid samples were collected. The data were analyzed according to the background of Internet users, Internet information searching behavior, use of Internet resources and services, quality of Internet information, problems of the Internet access and need for Internet literacy. The study found that the majority of respondents had a 5 year history of Internet access. The academic staff spent more time on the Internet than the students and research scholars. Although Internet search engines were the preferred information searching tool, other methods such as databases, gateways and World Wide Web (WWW) were also used. Online journals and databases were the preferred information sources among the Internet users. Respondents chose e-mail, WWW and search engines as important Internet services. About 60% of respondents believed that the good quality of information on the Internet made it a useful tool for education and research. Slow speed, lack of training and information overload were indicated as some of the factors affecting Internet usage. Further, recommendations are made to improve the use of Internet, including a well-planned Internet literacy program and preparation of subject gateways. 相似文献
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This study tested competing predictions about the implications of Internet use for traditional inequities in social support availability. Using survey data collected as part of the Pew Internet and American Life Project, inequities in social support availability stemming from demographic and network-related factors were examined among non-users, Internet users, and Internet users who also participated in a social network site (SNS). The results offered evidence consistent with the social compensation perspective. Traditional inequities in support availability related to age, race, and total network size persisted among respondents who did not use the Internet, but were less evident or absent among Internet users and/or Internet users who participated in an SNS. Using the Internet to connect with others appeared to be an important mechanism through which inequality in support availability was mitigated. 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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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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George Chandler 《International Information and Library Review》2013,45(1):41-47
To get an insight into the perspective of Internet use in Nepal, the author conducted a survey of Internet users in Nepal in late April 1998. An electronic questionnaire was sent via e-mail to a selected local listserve (nepal-list@mos.com.np) which had about 100 members at that time. Because the response was insufficient, a second posting of the questionnaire was made in the first week of May, and responses were given a deadline of the second week of June. After the second posting of the questionnaire 12 responses were received (12%), which was accepted as meeting the social science survey sampling standard. The results of the survey provided information on various aspects of Internet use in Nepal, such as frequency of Internet use, benefits from Internet use, application of Internet in development and management of communications. The survey has also identified opinions on how Internet use should be promoted in Nepal, opinions on the north–south balance of Internet use, social effects of the Internet and other aspects. This survey, which was the first of its kind conducted in Nepal, reached only a small portion of Internet users in Nepal. As of August 1998, there are estimated to be over 7000 Internet users in Nepal. Future research on Internet use in Nepal is needed to develop the literature, data and information for use by researchers, development workers, commerce and other industries. 相似文献
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《International Information and Library Review》1999,31(1):41-47
To get an insight into the perspective of Internet use in Nepal, the author conducted a survey of Internet users in Nepal in late April 1998. An electronic questionnaire was sent via e-mail to a selected local listserve (nepal-list@mos.com.np) which had about 100 members at that time. Because the response was insufficient, a second posting of the questionnaire was made in the first week of May, and responses were given a deadline of the second week of June. After the second posting of the questionnaire 12 responses were received (12%), which was accepted as meeting the social science survey sampling standard. The results of the survey provided information on various aspects of Internet use in Nepal, such as frequency of Internet use, benefits from Internet use, application of Internet in development and management of communications. The survey has also identified opinions on how Internet use should be promoted in Nepal, opinions on the north–south balance of Internet use, social effects of the Internet and other aspects. This survey, which was the first of its kind conducted in Nepal, reached only a small portion of Internet users in Nepal. As of August 1998, there are estimated to be over 7000 Internet users in Nepal. Future research on Internet use in Nepal is needed to develop the literature, data and information for use by researchers, development workers, commerce and other industries. 相似文献
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Jaime Banks 《广播与电子媒介杂志》2013,57(4):620-628
This article reports a national study of Internet users' usage of cable television Web site features to illustrate the dynamics of cross-media use in electronic media and explore the role of cable television network Web sites in network branding and viewership. Our findings indicate that younger Internet users are much more likely to use television Web sites than older Internet users. Despite the low use of the enhanced features of television Web sites, the increase in the number of Web site feature usage positively predicts viewer loyalty, subscriber loyalty, and to a lesser extent, new subscriber attraction for cable networks. 相似文献
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《图书馆管理杂志》2013,53(2-3):87-95
Abstract This article considers the use of filtering software (“censor-ware”) and the World Wide Web. It argues that the United States government, religious groups, and corporations should not deter freedom of speech and access to information in libraries. The article describes how governments and religious groups try to prevent Web sites from reaching Internet users, and explains how corporations sell and use filters for their own benefit. It also introduces organizations that rate Web sites as an alternative to electric filters, and presents people and groups that oppose filtering. In conclusion, it supports the idea that librarians and information professionals can educate Internet users without the interference of external entities and censorship. 相似文献
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《Medical reference services quarterly》2013,32(2):97-107
Abstract Google is the search engine of choice for most Internet users. For a variety of reasons, librarians and other expert searchers do not always use Google to its full potential, even though it provides capabilities not possible in traditional bibliographic databases and other search engines. Applying expert searching principles and practices, such as the use of advanced search operators, information retrieval strategies, and search hedges to Google will allow health sciences librarians to find quality information on the Internet more efficiently and effectively. 相似文献