共查询到20条相似文献，搜索用时 31 毫秒
1.
Frank Lambert 《Cataloging & classification quarterly》2013,51(3):208-222
Libraries and information centres use often multiple classification schemes for organizing their collections. In Canadian full depository libraries government publications can be organized in collections using a government publishing office's own notation, knowledge organization notation, or other notational scheme designed especially for government publications. Provenance-based schemes such as CODOC are attractive for their universality and for work-related purposes that may be influenced by financial challenges. However, libraries that use multiple notations for government publications may open the potential for intellectual disruption to information retrieval practices in either physical or virtual browsing. 相似文献
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Anchor texts complement Web page content and have been used extensively in commercial Web search engines. Existing methods
for anchor text weighting rely on the hyperlink information which is created by page content editors. Since anchor texts are
created to help user browse the Web, browsing behavior of Web users may also provide useful or complementary information for
anchor text weighting. In this paper, we discuss the possibility and effectiveness of incorporating browsing activities of
Web users into anchor texts for Web search. We first make an analysis on the effectiveness of anchor texts with browsing activities.
And then we propose two new anchor models which incorporate browsing activities. To deal with the data sparseness problem
of user-clicked anchor texts, two features of user’s browsing behavior are explored and analyzed. Based on these features,
a smoothing method for the new anchor models is proposed. Experimental results show that by incorporating browsing activities
the new anchor models outperform the state-of-art anchor models which use only the hyperlink information. This study demonstrates
the benefits of Web browsing activities to affect anchor text weighting. 相似文献
3.
Can a floating collection thrive in a large multicampus academic research library? Floating collections have been successful in public libraries for some time, but it is uncommon for academic libraries and unheard of for a large academic library system. This article will discuss the investigation into the feasibility of a floating collection at Penn State University Libraries, its implementation, and continuation for a period covering 2009 through 2015. Attaining the floating collection, limited to monographs in the general stacks of campus libraries, proved to be easier to implement than imagined and resulted in unintended benefits as well as some surprises. 相似文献
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Government information librarians value instruction as a way to promote their collections and meet their users’ information needs. Government information librarians must choose the most appropriate model for their audience and for the relevant learning outcomes in each instruction session they teach. This article discusses three models for teaching government information (traditional, information cycle, and critical thinking models) and identifies learning outcomes described in the Information Literacy Competency Standards for Higher Education that are associated with each model. 相似文献
6.
《International Information and Library Review》1999,31(3):145-156
With the current economic situation, and the latest advancements in information technology, the information profession is faced with the need to continuously redefine the library as a concept and as a physical environment. Current trends increasingly appear to define the library as a provider of information. This article describes the argument for resource sharing with its different attributes as it appears in the literature, as well as its validity in the case of Kuwait. Two main research collections in Kuwait that constitute the basis for the information infrastructure of the country are used as examples. These collections are the Kuwait University Libraries, and the National Scientific and Technical Information Center, “NISTIC”. A profile of the two collections including their coverage, trends in budget, and service are used to justify the viability of resource sharing among two leading institutions in Kuwait. 相似文献
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Taghreed Alqudsi-Ghabra 《International Information and Library Review》2013,45(3):145-156
With the current economic situation, and the latest advancements in information technology, the information profession is faced with the need to continuously redefine the library as a concept and as a physical environment. Current trends increasingly appear to define the library as a provider of information. This article describes the argument for resource sharing with its different attributes as it appears in the literature, as well as its validity in the case of Kuwait. Two main research collections in Kuwait that constitute the basis for the information infrastructure of the country are used as examples. These collections are the Kuwait University Libraries, and the National Scientific and Technical Information Center, “NISTIC”. A profile of the two collections including their coverage, trends in budget, and service are used to justify the viability of resource sharing among two leading institutions in Kuwait. 相似文献
8.
线上藏品不同的图文布局方式会影响观众的注意过程,进而影响观众对相应图文信息的获取效果。本文通过眼动实验,研究了观众浏览藏品页面文物图片与说明文字时上图下文、上文下图、左图右文、左文右图四种页面布局方式对观众注意行为的影响,同时关注了四种形式下观众对页面中所包含的文物大小、形制、纹饰、工艺、历史文化意义等多项信息的获取情况,从而探究线上藏品图文布局对观众信息获取的影响,进而为线上藏品页面的设置提供借鉴,使其更好地以观众的注意特点为导向促进藏品信息的传播。 相似文献
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A qualitative study of the impact of electronic journals on the information behavior of academic researchers at Catalan universities shows that academic researchers now read more, and more widely. However, their reading is becoming more superficial; they are compelled to improve their discrimination skills in order to decide what to read in more depth. The electronic accessibility of journals means that researchers now make fewer library visits. Web browsing and table of contents (TOC) e-mail alerts are replacing physical browsing, and searching is a very popular option for keeping up to date with developments. Internet search engines, especially Google and Google Scholar, are becoming important sources of information for researchers. However, they face problems in managing their personal scientific information. 相似文献
10.
Rachel P. King 《资料收集管理》2013,38(4):209-220
Streaming video is becoming the preferred means of viewing video for consumers, but physical formats do continue to offer libraries certain advantages: greater variety of choice for patrons at a lower cost. Many academic libraries have invested heavily in DVD collections, and these videos may be housed in closed stacks that satisfy some stakeholders but that discourage use and do not meet student needs or expectations. This article provides a framework for deciding whether to open up a closed collection and uses the author's library's closed-stack collection as a case study. 相似文献
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[目的/意义]研究Web环境下的用户浏览行为的规律,分析用户在浏览行为中认知、物理和情感3个维度之间的对应关系以及认知维度的影响因素。[方法/过程]通过为被试设计指定任务,要求被试在完成任务时进行出声思考,对其口头报告进行转录、分割、编码,进一步使用SPSS对编码数据进行统计分析。[结果/结论]随着认知阶段的顺序变化,物理维度的新建与停滞动作逐渐减少、后退与停止动作逐渐增多,情感维度的消极情绪所占比例下降、积极情绪所占比例上升。设定认知维度的评价阶段的投入阈值,帮助用户发现具体搜索目标,有助于提高浏览行为的速度和效果,增加用户的积极情感体验。 相似文献
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This article reports findings from a multiphase analysis of demand-driven acquisitions (DDA) within the academic research library setting. Evaluating local collections within the context of Trueswell's (1969) often-cited 80/20 Rule, phase one of this study illustrates the deficiencies of a just-in-case approach to building library collections. Following from this, phase two evaluates the viability of DDA as the just-in-time collection-building solution librarians have sought as an answer to low-use titles that plague most academic library collections. Supported by 16?months of data, this study scrutinizes the comparative value of DDA against traditionally acquired titles along two key dimensions—the subject-matter profile of purchases and their overall usage levels. Further, the concept of a utility as value paradigm, as well as a purchase-use equilibrium for library collections, provide a theoretical framework in which the relative value of DDA is assessed. From a content, or subject-matter, perspective, this study finds negligible deviation in those purchasing patterns associated with DDA when compared with traditionally-acquired materials. At the same time, DDA titles experience much higher levels of use and are, therefore, associated with markedly lower cost-per-use figures and greater overall value. 相似文献
13.
《The Journal of Academic Librarianship》2021,47(6):102450
Low-use tangible print collections represent a long-standing problem for academic libraries. Expanding on the previous research aimed at leveraging machine learning (ML) toward predicting patterns of collection use, this study explores the potential for adaptive boosting (AdaBoost) as a foundation for developing actionable predictive models of print title use. This study deploys the AdaBoost algorithm, with random forests used as the base classifier, via the adabag package for R. Methodological considerations associated with dataset congruence, as well as sample-based modeling versus novel data modeling, are explored in relation to four AdaBoost models that are trained and tested. Results of this study show AdaBoost as a promising ML solution for predictive modeling of print collections, with the central model of interest able to accurately predict use in over 85% of cases. This research also explores peripheral questions of interest related to general considerations when evaluating ML models, as well as the compatibility of similar models trained with e-book versus print book usage data. 相似文献
14.
蔡国瑞 《现代图书情报技术》2004,20(10):14-23
大部分有用的数字信息与地球上的地点和区域相联系。针对数字图书馆的传统可视化界面没有被设计成用来处理数据的独一无二的地理空间特征，也没有更好地利用地理参考信息的特点并将其作为浏览和检索信息的机制，本文阐明了地理空间信息可视化界面的发展趋势，并且提出了多媒体地理空间文献空间有效可视化所面临的主要挑战。本文列举了最新的研究成果，并且回顾针对集成文献可视化(在信息科学领域得到发展)与地理可视化技术(在地理空间信息学科领域得到发展)的若干尝试，以支持科学的信息获取和决策。作者得出了一组空间认知原则，它们影响了地理空间信息可视化界面的未来发展。 相似文献
15.
As the number of reference questions continues to decline across academic libraries, innovative models have been developed to highlight collections and reach underserved communities. This article describes four outreach models at the University of New Mexico University Libraries, including satellite outreach services, pop-up book trucks and events, and relationship building at various locations on and off campus. The authors describe innovative approaches including curated browsing experiences and relationship marketing to underserved communities. Lessons learned, future approaches, and the benefits of each model will also be explored. 相似文献
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《资料收集管理》2013,38(3-4):83-92
Although the concept of browsing rooms or enrichment collections is not a new one in academic libraries, there is very little recent literature regarding the nature of such collections and a dearth of literature addressing thc importance of collection development policies for such collections. This paper describes the development of a collection development policy for a specific university library enrichment collection and discusses guidelines and procedures developed to complement and implement the policy. 相似文献
19.
《The Reference Librarian》2013,54(38):245-250
Two prevalent systems of organizing bound and current periodical collections in academic libraries are the open stack and the closed stack methods. This paper examines, by means of a survey, which method is used by selected two-year colleges in New York State. The initial purpose of the survey was to determine whether open or closed stacks were a significant factor in the loss of periodicals. The survey was sent to 31 libraries; 27 libraries responded, all apparently satisfied with their current system. The response showed that when theft was a problem, libraries with open stacks noted a greater loss of periodicals. 相似文献
20.
《The Reference Librarian》2013,54(57):45-49
Abstract This article profiles web sites that are intended for browsing and reference in patent searching. The web provides limited information and cannot be considered a resource for comprehensive patent research. 相似文献