关于电工技术文献分类的研究(一)

文章研究电工技术文献分类的三个问题:电子技术文献的分类标准,电工技术文献的分类体系,电工技术文献的分类方法。     

关于电工技术文献分类的研究 (三)

文章研究电工技术文献分类的三个问题:电子技术文献的分类标准,电工技术文献的分类体系,电工技术文献的分类方法。     

数字图书馆电源系统安全措施探讨

图书馆电源系统安全关系到图书馆消防、设备保护和数据安全等重大问题.多级防浪涌是解决图书馆电源系统安全的首选措施,接地系统与等电位连接也是解决电源系统安全的重要方法,数字图书馆离不开备用电源和自动切换系统.     

情报检索语言研究的新领域

情报检索语言的发展面临现代化、理论方法综合化和集成化的新条件,研究新的语言模型,提高检索语言的表达、描述等功能是当前的重要研究课题,同时要具体研究数据库检索语言、网络检索语言、本体论和语义网检索语言。在所有这些领域里,检索语言的机器理解功能日益重要;为适应机器处理的环境,对它的逻辑推理能力的要求越来越高,知识建模功能与系统表达能力受到越来越多的重视。     

国际图联关于“世界知识产权组织未来发展日内瓦宣言”的立场(2004年9月28日)

国际图联(IFLA)对《世界知识产权组织未来日内瓦宣言》表示认可和欢迎。国际图联迫切要求世界知识产权组织对于知识产权法的不平衡、信息垄断、技术保护措施、数字鸿沟加大,以及自由贸易协定等问题予以陈述和表态,并力劝其针对世界范围的知识产权问题,考虑发达国家和发展中国家的不同需要,采取全新步骤。参考文献4。     

Analysis of the urban/rural broadband divide in Canada: Using GIS in planning terrestrial wireless deployment

Millions of Canadians residing in Canada's northern, isolated, rural, and remote communities do not have broadband Internet access. This situation has led to a national “broadband divide.” That is, the deployment of wireline broadband is very limited in Canada's northern, isolated, rural, and remote areas because of the significant expense of installation and maintenance of the wired infrastructure needed to reach dwellings in these locations.Terrestrial broadband wireless technology, on the other hand, does not entail the same kind of physical infrastructure. As a result, there are dramatic changes in how spatial considerations affect the provision of broadband Internet services (BIS) to areas beyond the urban zone. In particular, the spatial question is now focused on assessing the capacity for different technological solutions to reach profitable population bases, and brings to the forefront organizations that are developing non-line-of-sight (NLOS) technologies that would permit wireless Internet access over much greater distances than current solutions.We begin this paper by establishing the importance of broadband connectivity to Canada's northern, isolated, rural, and remote communities. This discussion comments on the role of the Government of Canada in the provision of broadband connectivity to residents of these communities, and outlines the current regulatory issues that govern wireless services and policy formulation.The second part of the paper illustrates the use of geographic information system (GIS) approaches in the study of wireless broadband planning and deployment. Case study findings suggest that GIS applications can make a significant contribution to the analysis of wireless deployment planning, to the understanding of the relationships between wireless signal sources and consumers, and to the spatial configuration of terrestrial wireless broadband networks. We conclude the paper by discussing how the GIS approach employed could be used to inform the public policy process with regard to increasing access to broadband Internet services in all regions of the country, and thereby providing the opportunity for all Canadians, regardless of location, to fully participate in the Information Society.     

Anonymous personalization in collaborative web search

We present an innovative approach to Web search, called collaborative search, that seeks to cope with the type of vague queries that are commonplace in Web search. We do this by leveraging the search behaviour of previous searchers to personalize future result-lists according to the implied preferences of a community of like-minded individuals. This technique is implemented in the I-SPY meta-search engine and we present the results of a live-user trial which indicates that I-SPY can offer improved search performance when compared to a benchmark search engine, across a variety of performance metrics. In addition, I-SPY achieves its level of personalization while preserving the anonymity of individual users, and we argue that this offers unique privacy benefits compared to alternative approaches to personalization.     

在PHP中利用绑定变量提高Oracle的存储效率

介绍了Oracle的存储结构和共享机制以及在PHP中利用绑定变量实现SQL语句共享的方法。     

关于丛书、多卷书著录规则的探讨

丛书、多卷书的著录方式存在争议，本文就其原因进行了分析，并提出了减少争议的办法。     

镜像服务器在我馆的应用

本文论述了镜像服务器的功能和特点,并介绍了其在本馆电子阅览室中的应用及使用方法。