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1.
《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
2.
《Library & information science research》2019,41(3):100968
Conventional statistical methods (e.g. logistics regression, decision tree, etc.) have been used to analyze library demand-driven acquisitions (DDA) data. However, these methods are not well-suited to predict when acquisitions will be triggered or how long e-books will remain unused. Survival analysis, a statistical method commonly used in clinical research and medical trials, was employed to predict the time-to-trigger for DDA purchases within the context of a large research university library. By predicting which e-books will be triggered (i.e., purchased), as well as the time to trigger occurrence, the method tested in this study provides libraries a deeper understanding of factors influencing their DDA purchasing patterns. This understanding will help libraries optimize their DDA profile management and DDA budgets. This research provides a demonstration of how data science techniques can be of value for the library environment. 相似文献
3.
Abstract In seeking to provide a more cost-effective means to substitute for gaps in the collection the University of Hong Kong Libraries began to consider the feasibility of combining purchase with interlibrary loan borrowing in the fall of 2001. From 2002 the University of Hong Kong Libraries implemented a new initiative, called the “Overseas Book Loan Initiative,” to purchase interlibrary loan requests for locally unavailable monographs instead of borrowing them from overseas. This paper presents the University of Hong Kong model of “purchase on demand,” and attempts to study whether purchase instead of borrow is a better alternative for the University of Hong Kong Libraries' situation, given the local factors and circumstances. The four underlying factors: speed, subsequent use, content appropriateness, and cost of transaction are examined by analyzing actual data collected. Evidence from the study suggests that purchasing instead of borrowing is a better option if the library can continue to support the higher out-of-pocket costs to achieve the benefits of improving patron support, addingindemand materials to the collection, and optimizing the use of resources. 相似文献
4.
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
5.
读者决策的图书馆藏书采购——藏书建设2.0版 总被引：15，自引：3，他引：12
读者决策的图书馆采购开始迅速地应用在美国研究型图书馆,尤其是在电子图书采购的实践中.文章简要地回顾了图书馆藏书建设的形成以及催生这种新型模式的原因和技术环境,并描述了它的工作流程和问题. 相似文献
6.
Beth Denker 《图书馆管理杂志》2018,58(3):282-292
In 2016, ProQuest started advertising their new Access to Own (ATO) model for ebooks as an alternative to their other Demand Driven Acquisition (DDA) models. The ATO model was touted as applying the cost of loans toward title ownership to balance costs of purchasing and loans. This article shares the Colorado Alliance of Research Libraries' history of ebook DDA and the process of transition to a DDA ATO model. 相似文献
7.
[目的/意义] 立足于国内馆配电子书市场发展的关键时机,以北京师范大学图书馆港台电子图书采购的实践为基础,提出基于单本购买的中文电子书采购方案,并对涉及到的读者需求驱动采购及纸电协调采购进行了研究。[方法/过程] 从电子书平台的资源分析、电子书的需求分析、电子书试用、采购模式及流程、合同签订和电子书的后续管理几个方面,进行电子书采购方案设计。[结果/结论] 单本电子书采购的实施需要图书馆在采购政策和采购模式上进行新的布局,高校图书馆应密切关注国内外电子书平台的发展,并尽早制定适合本馆的中文电子书采购方案,以便为开展单本电子书采购实践奠定基础。北京师范大学图书馆港台电子书采购的实践表明本文提出的单本电子书采购方案具备一定的可操作性。 相似文献
8.
介绍图书采购查重统计系统中运用的理论和技术，并对系统的功能进行简介和评价。实践证明，系统能够帮助采购人员在采购过程中即时了解馆藏和借阅信息，对当前的采购数据进行有效决策和处理。 相似文献
9.
Pamela Johnston 《Journal of Interlibrary Loan, Document Delivery & Electronic Reserve》2013,23(2):121-125
There is a trend among academic libraries to increase collaboration between interlibrary loan and collection development to improve patron access to materials and build library collections. Instead of borrowing returnable materials, interlibrary loan may initiate purchases that will become part of the library's collection. This can mean anything from an organizational change combining interlibrary loan with the acquisitions unit or creating new workflows to facilitate purchasing. At the University of North Texas Libraries, the Interlibrary Loan office is a unit of the Access Services Department. Buying instead of borrowing for the ILL unit began with a Demand Driven Acquisitions (DDA) program and has expanded with the establishment of the University of North Texas Libraries' access-based collection development policy. Interlibrary Loan provides “Just-In-Time” (JIT) access to materials not available through regular interlibrary loan sources and adds relevant materials to the Libraries' collections. 相似文献
10.
论高校图书馆深层次个性化信息服务 总被引：7，自引：0，他引：7
高校图书馆在重视馆藏资源的数字化建设及购置数据库等电子文献的同时，应为满足用户的个性化需求方面提供深层次的服务，促进信息资源访问与读者之间的互动。 相似文献
11.
杨凡 《大学图书情报学刊》2012,30(6):42-45
针对现代图书馆采购环境的变化及图书采访方式存在的多种问题,文章提出以联合采购中心（UPC）为核心的联合招标采购体系新模式,并阐述了该模式在使用过程中要注意的事项和实施过程,展望了以联合采购中心（UPC）为核心的联合招标采购体系新模式使用的未来前景,探讨了该模式对图书馆文献采购可持续发展所具有的重要意义。 相似文献
12.
谭忠顶 《大学图书情报学刊》2012,30(5):69-72
文章分析了文学图书采购困难的成因,提出从提高采购人员的文学素养、吸引文学专业师生参与采购、坚持内容至上以及现采为主、勾单为辅的采购原则,注意收集同类院校图书馆的图书借阅信息等五个方面提升文学图书采购质量,提高读者对文学图书的满意度. 相似文献
13.
Glover SW Addison J Gleghorn C Bramwell J 《Health information and libraries journal》2007,24(3):193-199
BACKGROUND: Health care libraries spend a large amount of their non-pay budgets on the purchase of scientific, technical and medical journals. In a typical hospital library in the National Health Service (NHS) North West Strategic Health Authority (SHA), this can represent between 80 and 90% of the collection development budget. METHODS AND RESULTS: Data were collected from 1 December 2005 to 30 November 2006 using COUNTER-generated usage statistics obtained from publishers' administration tools. Between the two trusts included in the study, 93 376 full-text article downloads were recorded; of these, 15 952 or 17.1% articles were downloaded from national core content journals via Proquest. Photocopies made by users for their own use were recorded whenever this data were available. CONCLUSIONS: NHS staff at the sites included in this study recorded a high volume of journal usage. There was a marked difference in usage patterns between the acute and specialist trusts in the study. The journals provided by national core content represented a much higher proportion of total usage at the acute trust (29.9%) compared with the specialist cancer trust (4.5%). This study supports the view that the local purchasing of journal titles is an important component of the overall journal-based information provision to NHS staff. 相似文献
14.
文章在对Agent情感分类已有研究的基础上,将Agent在劝说中的情感分为正面情感、负面情感和中性情感三类,在建立相应的形式化模型后对正面情感变化程度进行量化计算,应用于高校图书采购中并给出相应的评价。该模型应用于高校图书采购中可使其更加科学化和理性化,使采访人员更能作出有效的采购决策,真正实现图书馆的效益原则,即以最低的成本为最多的读者提供最好的服务。 相似文献
15.
Carol Joyner Cramer 《期刊图书馆员》2013,64(1):87-97
This article reports on a talk delivered at the Mississippi State University Libraries eResource & Emerging Technologies Summit. The author introduces the concept of Demand-Driven Acquisition (DDA) for e-books and explains how it works. The author discusses predicting and controlling costs, as well as other implementation decisions. Finally, the author discusses the possibility of removing books from a DDA program and speculates on some of the effects of DDA on libraries and scholarly publishing. 相似文献
16.
论馆藏建设中的几个关系 总被引：70，自引：0，他引：70
ＣＬＡＳＳＮＵＭＢＥＲＧ２５３．１当今,电子化、数字化信息和高速信息网络的发展使学术交流经历着又一次重大革命性变化,使学术交流的“正式”和“非正式”形式逐渐统一起来,信息使用者和生产者的区别逐渐模糊,时空和许多客观条件对学术交流和研究工作的限制逐渐淡... 相似文献
17.
《资料收集管理》2013,38(3):183-190
ABSTRACT The working group developed its map through a web-based survey distributed internationally via listservs. Eighty-nine preponderantly North American cooperative projects responded. Almost three-quarters of them were born in the 1990s. State-based projects are prevalent, and most projects operate in compact regions. Academic libraries appear to participate much more frequently than other types. Not surprisingly, 75 percent of the projects feature the shared purchase or archiving of electronic resources. One-third engage in selection or management of print materials, most often in area studies. Collaborative electronic purchasing has generated a boom in cooperative collection development, but traditional print-based cooperation remains rare and narrowly focused. 相似文献
18.
美国研究图书馆协会2010年电子资源评估调查 总被引：3，自引：0，他引：3
美国研究图书馆协会(ARL)2010年电子资源评估调查,总结了ARL成员最新的电子资源采购与许可授权获取方面的实践进展情况。调查从多方面分别对联盟采购电子资源或获取许可授权和图书馆直接采购电子资源或获取许可授权两种采购策略进行了论述。最后总结出存在问题并提出改进建议。 相似文献
19.
Academic libraries are challenged with managing collection budgets for purchasing multidisciplinary ebook packages while equitably distributing funds for print and electronic monographs across subjects. McGill Library's science and engineering monograph holdings were analyzed using OCLC's WorldShare Collection Evaluation (WCE). Researchers mapped Conspectus subject divisions and categories to relevant university departments and evaluated holdings in comparison with department metrics to provide a fuller picture for collection development decision making. Findings show that WCE can be used in combination with circulation data and enrollment and staffing numbers to provide insight into the purchasing and use patterns of monographs down to the department level. 相似文献
20.