Analysis of the urban/rural broadband divide in Canada: Using GIS in planning terrestrial wireless deployment   总被引：3，自引：0，他引：3  

M. Sawada  Daniel Cossette  Barry Wellar  Tolga Kurt 《Government Information Quarterly》2006,23(3-4):454

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.  相似文献   

Anonymous personalization in collaborative web search   总被引：2，自引：0，他引：2  

Barry Smyth  Evelyn Balfe 《Information Retrieval》2006,9(2):165-190

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.  相似文献   

DII、esp@cenet、CA在科技查新专利检索中的应用   总被引：1，自引：0，他引：1  

邓勇  张娴 《图书情报工作》2004,48(7):82-85

详细分析德温特专利创新索引(DII)、欧洲专利系统(esp@cenet)、美国化学文摘(CA)3种检索工具对专利文献的报 道特征与检索功能;通过检索实例对3者应用于科技查新专利检索的优势与不足进行评析,并就具体应用方法提出相关建 议。  相似文献   

决策支持技术在电子政务中的应用*——以大社保领域为例      总被引：1，自引：0，他引：1  

金莹  邓三鸿  李勇 《现代图书情报技术》2004,20(9):66-69

不同的电子政务系统需要特定的决策支持系统，本文以大社保领域为例，介绍了电子政务系统引入决策支持技术的必要性，详细讨论了社会保障决策支持系统的内容和目标，同时还阐述了决策支持技术在大社保领域的应用研究中需要解决的关键性问题。本文从实际应用的角度出发，给出了一个较为完整的社会保障的决策支持系统的解决方案。  相似文献   

对开展社会科学成果查新研究的探讨   总被引：4，自引：0，他引：4  

许家梁刘彦庆  褚衍昌 《津图学刊》2004,(3):4-6,29

本文认为，国内现有的自然科学成果查新机构无法适应社会科学成果查新需要，建立全国性社科成果查新体系势在必行。为此，需要开展相关的社会科学成果查新研究。本文对开展社会科学成果查新研究的背景、意义、内容和方法进行了探讨。  相似文献   

“公共图书馆精神”的科学解读   总被引：27，自引：1，他引：27  

王宗义 《中国图书馆学报》2004,30(5)

“公共图书馆精神”是近代图书馆活动中提炼出来的职业道德基础之一。机械地移植外来的社会文化制度,仅从字面上理解公共图书馆精神,是导致我国公共图书馆活动缺少社会认同的主要原因。需要把公共图书馆活动和相应的社会文化制度放到相关的社会环境中去考察,认识这一社会文化活动的原始运作模式,进而科学地解读“公共图书馆精神”和社会文化制度,为图书馆活动和科学研究提供一个理性的基础。参考文献4。  相似文献   

国家科学数字图书馆网络联合参考咨询服务质量控制及评价方案研究*   总被引：24，自引：0，他引：24  

张娴  杨志萍  周宁丽  李丹 《现代图书情报技术》2005,21(11):30-33

介绍了国内外数字参考咨询服务质量评价体系的研究与应用概况。结合国家科学数字图书馆网络联合数字参考咨询服务的质量控制需要，在项目一期建设基础上选取部分指标建立了实际操作的评价体系，并制定了制度化的系统评价方案。  相似文献   

Analysis of Academic Libraries' Facebook Posts: Text and Data Analytics     

Sultan M. Al-Daihani  Alan Abrahams 《The Journal of Academic Librarianship》2018,44(2):216-225

This research analyzed a dataset of academic libraries' posts on Facebook. It applied a text and data analytics approach to a dataset collected from the Facebook posts of academic libraries at the top 100 English-speaking universities, as listed by the 2014 Shanghai World University Rankings. The dataset is from a two-year posting history of 18,333 unique posts, 113,621 likes, and 3401 comments. Less than a quarter of the libraries had more than 2000 post-related likes, and only seven received more than 100 comments on their postings. Content analysis identified the most prevalent single word (unigrams), bigrams (two-word sequences), and trigrams (three-word sequences) in high and low engagement content. Semantic analysis identified the semantic categories for posts with high and low engagement. The findings can assist academic libraries in their social media strategies for engagement, marketing, and visibility.  相似文献   

Research trends and collaborations by applied science researchers in South African universities of technology: 2007–2017     

Elisha R.T. Chiware  Deborah A. Becker 《The Journal of Academic Librarianship》2018,44(4):468-476

This paper analyses the publication patterns of researchers in the field of applied sciences at Universities of Technology in South Africa. Aspects investigated include publications in SCOPUS-listed journals; number of citations and countries of publication. Collaborative research patterns at national and international levels were also investigated. A bibliometric analysis approach was followed using SCOPUS as the main source of data and analysing the articles published in selected applied science disciplines. Results show that researchers in the field of applied sciences in universities of technology have increased their number of publications over the past 10?years and are also working in conjunction with other researchers both nationally and internationally. The analysis is an important addition to the field in South Africa which helps in measuring how institutions are positively responding to government incentives in research. The results are also important to information professionals who are increasingly playing an important role in research impact assessments.  相似文献   

Google Scholar's Coverage of the Engineering Literature 10 years Later     

Carmen Cole  Angela R. Davis  Vanessa Eyer  John J. Meier 《The Journal of Academic Librarianship》2018,44(3):419-425

In 2008 Meier and Conkling first tested Google Scholar's coverage of the engineering literature against citations gathered from the Compendex database. Since that time, other studies have used the same methodology and found improvement in Google Scholar's coverage. This study uses engineering dissertations from Proquest Dissertations & Theses to create a data set of citations for the comparison of fee-based databases, Compendex and Scopus, against Google Scholar. From 1950 to 2017 Google Scholar outperformed both Compendex and Scopus in discoverability of citations in nine engineering subjects. These results have implications for collection management and information literacy program planning for librarians.  相似文献