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HORIZON中流通和OPAC模块的功能及实现 总被引：2，自引：0，他引：2
蒋春林 《现代图书情报技术》2002,18(2):25-27
介绍了HOR IZON 系统的流通子系统和OPAC 子系统的功能, 分析了HOR IZON 有关这两个模块的系统设置和相应的表结构。 相似文献
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本文通过对目前国内外几种主要图书馆自动化系统所属的OPAC系统的调查比较和分析评价,提出OPAC系统用户接口设计的17个评价指标,并对OPAC系统用户接口的规范化设计提出了几点建设性意见和建议. 相似文献
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随着网络技术更新和发展,近年来我国图书馆OPAC系统有了一些新的发展和变化。从融合Web2.0特征的OPAC系统、移动OPAC系统、可视化OPAC系统三个方面讨论OPAC系统的最新研究现状和未来的发展趋势。 相似文献
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图书馆OPAC功能改进之探讨 总被引：2，自引：0，他引：2
与商业化搜索引擎和电子资源平台相比,传统的图书馆OPAC服务功能日益相形见绌。如何增强OPAC功能,提升OPAC的服务成效,在现有的应用环境和条件下挖掘OPAC的利用价值,值得图书馆员们思考与探索。该文阐述了几种已见成效的OPAC功能改进小举措,旨在推动进一步的探讨与实践,建设更加完善的基于OPAC的图书馆服务体系。 相似文献
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OPAC历史沿革及其发展趋势 总被引：15，自引：0，他引：15
对联机公共检索目录(OPAC)的发展历程、第三代基于网络环境的OPAC系统(Web-based OPAC)的构成特点和IFLA的OPAC显示标准进行了简要分析,并在此基础上预测了OPAC今后的发展趋势.参考文献26. 相似文献
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网络环境下OPAC系统资源整合 总被引：10，自引：1，他引：9
胡宁 《上海高校图书情报工作研究》2003,13(1):14-17
分析OPAC资源整合的意义。提出OPAC系统资源整合的构想，并结合中国人民大学图书馆OPAC资源整合的实践，论述OPAC系统资源整合的目标和发展趋势。 相似文献
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通过比较数字图书馆OPAC与图书搜索引擎和网上书店的检索和信息揭示功能,分析了国内OPAC系统建设中存在的问题,提出要以图书搜索引擎和网上书店为启示,强化OPAC的检索和信息揭示能力,鼓励用户参与OPAC建设,以及在OPAC系统中整合相关外部资源的的4项措施。参考文献11。 相似文献
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基于OPAC的资源整合研究 总被引：11，自引：0，他引：11
从理论、技术与实践三个方面探索Web2.0环境下OPAC的革新--加强OPAC的资源整合功能.作者分析了基于OPAC资源整合的必要性,提出了OPAC资源整合的内容,总结了OPAC资源整合的途径,最后例举了北师大图书馆OPAC资源整合的实例. 相似文献
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The definitions of the rational and real-valued variants of the h-index and g-index are reviewed. It is shown how they can be obtained both graphically and by calculation. Formulae are derived expressing the exact relations between the h-variants and between the g-variants. Subsequently these relations are examined. In a citation context the real h-index is often, but not always, smaller than the rational h-index. It is also shown that the relation between the real and the rational g-index depends on the number of citations of the article ranked g + 1. Maximum differences between h, hr and hrat on the one hand and between g, gr and grat on the other are determined. 相似文献
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Eric Ketelaar 《Archival Science》2007,7(4):343-357
Around 1800 the “paradigm of patrimony” recognized archives as cultural and national patrimony. That paradigm was, however,
not a new revolutionary invention. It had been fostered by a “patrimony consciousness” which had developed in the seventeenth
and eighteenth centuries. The value of archives as a patrimony to future generations was acknowledged first in the private
sphere by families and then by cities—communities of memory becoming communities of archives.
Eric Ketelaar is Professor of Archivistics in the Department of Mediastudies of the Faculty of Humanities of the University of Amsterdam. He is Honorary Professor at Monash University, Melbourne (Faculty of Information Technology). He engages with the social history of archives by researching the history of recordkeeping and the use of records and archives, resulting in articles on thirteenth century Dordrecht, sixteenth century Leiden, the eighteenth century Court of Holland, Dutch public administration 1795–1950, and record creation in the context of systematic management in Dutch enterprise, 1870–1940. He is particularly interested in the relationship between recordkeeping and organizational, professional, and national cultures, past and present. This led him further to study the role of records and archives in times of oppression, war, liberation, and reconciliation. 相似文献
| Eric KetelaarEmail: |
Eric Ketelaar is Professor of Archivistics in the Department of Mediastudies of the Faculty of Humanities of the University of Amsterdam. He is Honorary Professor at Monash University, Melbourne (Faculty of Information Technology). He engages with the social history of archives by researching the history of recordkeeping and the use of records and archives, resulting in articles on thirteenth century Dordrecht, sixteenth century Leiden, the eighteenth century Court of Holland, Dutch public administration 1795–1950, and record creation in the context of systematic management in Dutch enterprise, 1870–1940. He is particularly interested in the relationship between recordkeeping and organizational, professional, and national cultures, past and present. This led him further to study the role of records and archives in times of oppression, war, liberation, and reconciliation. 相似文献
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Jennifer S. Milligan 《Archival Science》2007,7(4):359-367
Curious Archives examines the creation of the museum of archives, the Musée de l’Histoire de France, at the Imperial Archives
of France under the direction of Leon de Laborde, 1858–1867. This museum was intended as a crucial tool for publicizing the
Archives and educating the public, but also represented a break from the Archives’ role as administrative storehouse both
in practice and in the popular imagination. The museum’s conception and reception reveal conflicts around the Archives’ mission
and contents, particularly regarding public interest, the potential dangers of public curiosity, and nature of documentary
and historical knowledge in nineteenth-century France.
相似文献
| Jennifer S. MilliganEmail: |
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《Journal of Informetrics》2022,16(4):101340
We show that the h-index, g-index, ψ-index, and p-index, are related through the inequalities: h ≤ p ≤ g ≤ ψ. Moreover, this relation is proved theoretically in the mathematical framework of Lotkaian informetrics and is verified empirically by using two datasets from the Web of Science in the fields of electrochemistry and gerontology. For quantifying their relations, we estimate the g-index, ψ-index, and their cores and ratios of cores via a second-order Taylor series when the e-index, h-index, and C1 (the maximum number of citations received by a paper) are known. Then we find for the two empirical cases, that ratios of cores and average citations are approximately stable. Compared with the g-index, the offset-ability of the h-index decreases by 20% but the average citations increase by 20%. A similar observation holds for the comparison of the g-index and ψ-index. To explore the possible applications of cores of different indices, we apply them to extract the core structure of a network. The h-core is the most efficient, while the ψ-core includes more nodes with high betweenness. 相似文献
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Through a reading of the archived letters of Henry Garnet (1555–1606), Superior of the Jesuit order in England and suspected
Gunpowder plotter, this article investigates the nature of the archive in relation to narrative theory. Figuring the archive
as one of the number of narrating voices accrued by the individual record, I argue that models of communication such as those
put forward by Roman Jakobson, Wayne C. Booth and Seymour Chatman afford useful insights into the ways in which power is inscribed
and reinscribed in the record through successive acts of reading and rewriting.
Paul Wake is a Senior Lecturer in English Literature at Manchester Metropolitan University. He is the author of Conrad’s Marlow (2007), editor, with Simon Malpas, of The Routledge Companion to Critical Theory (2006), and he has published articles on narrative theory and postmodernism. 相似文献
| Paul WakeEmail: |
Paul Wake is a Senior Lecturer in English Literature at Manchester Metropolitan University. He is the author of Conrad’s Marlow (2007), editor, with Simon Malpas, of The Routledge Companion to Critical Theory (2006), and he has published articles on narrative theory and postmodernism. 相似文献
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Keshra Sangwal 《Journal of Informetrics》2013,7(2):487-504
The distributions of citations L, two- (IF2) and five-year impact factors (IF5), and citation half-lives λ of journals published in different selected countries are analyzed using Langmuir-type relation: yn = y0 {1 ? αKn/(1 + Kn)}, where yn denotes Ln, IF2n or IF5n of n-ranked journal, y0 is the value of yn when journal rank n = 0, α is an empirical effectiveness parameter, and K is the Langmuir constant. It was found that: (1) the general features of the distribution of Ln, IF2n or IF5n of the journals published in different individual countries are similar to the results obtained before by the author from the analysis of the citation distribution data of papers of individual authors (K. Sangwal, Journal of Informetrics 7 (2013) 36–49), (2) in contrast to the theoretically expected value of the effectiveness parameter α = 1, the calculated values of α > 1 for journals published in different countries, (3) the trends of the distribution of cited half-lives λn of journals differ from those of Ln, IF2n and IF5n data for different countries, and show one, two or three linear regions, the longest linear regions with low slopes are observed in the case of countries publishing relatively high number of journals, and (4) the product of the Langmuir constant K and the number N of journals for the processes of citations and two- and five-year impact factors of journals published in different countries is constant for a process. The results suggest that: (1) the values of α > 1 are associated with a process that retards the generation of items (i.e. citations or impact factors), the difference (α ? 1) being related to the dissemination of contents of the journals published by a country, and (2) the constancy of KN is related to the publication potential of a country. 相似文献
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This study assessed the use of “Personal Computer Technology” in public organizations of developing countries in South Asia, particularly in Pakistan [Qazi, R. (2006). Expanding the Technology Acceptance Model (TAM): A Consideration of Personal Computer Technology Use in Public Organizations of a Developing Country of South Asia, Pakistan (Doctoral dissertation, George Washington University, 2006). Dissertation Abstracts]. The study expanded the “Technology Acceptance Model” by adding additional external factors such as ‘Organizational Culture’ and ‘Individual Factors’ (e.g. ‘Level of Education’ and ‘Duration of Training’), and belief factors such as ‘Perceived Personal Utility.’ Financial compensation to employees was used as a control variable because preliminary data analysis showed that it explicitly differentiated results of the study between those employees who felt they were adequately rewarded (financially) and those who were not. For example, when respondents replied ‘Compensation’ was ‘Yes,’ i.e. that at least some level of direct compensation was provided for PCT utilization then a statistically significant, positive relationship between ‘Level of Education’ and ‘PCT Use’ was found. However, when respondents replied that ‘Compensation’ was ‘No,’ a statistically significant, negative relationship between ‘Level of Education’ and ‘PCT Use’ exists. Additional results of this study are presented in this article. 相似文献
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作为社会化搜索理念框架的一个重要组成部分,社会化问答系统(SQA)对Web 2.0用户的信息搜寻与知识获取方式产生了深远影响。在新一代互联网用户生成内容(UGC)环境下,虽然有关信息质量及其评价标准与维度的研究已取得一定程度的进展,但国内目前对SQA系统答案质量要素、SQA信息质量评价指标的研究仍缺乏足够的深度。本文以现有相关研究为基础,在社会化搜索的研究背景下,借助“百度知道”用户对答案质量感知的问卷,综合采用专家访谈、探索性因子分析和验证性因子分析方法,构建了一个基于SQA系统的社会化搜索答案质量评价模型SQA-IQ4Ⅲ,该模型包括内容质量、情境质量、来源质量和情感质量四个维度,共有18项关键性指标要素。研究结论将进一步扩展图书情报学和网络信息资源管理的研究领域,并对SQA用户获取高质量答案以及UGC产品/服务设计产生实际的帮助。图2。表9。参考文献40。 相似文献
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Abstract This article introduces the Partnership for Shared Book Collections, a federation of monograph shared print programs. Collaboration of programs at the network level allows for:
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Reducing the cost of retaining the scholarly record through shared distribution of commitments;
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De-duplicating efforts;
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Developing and promoting evidence-based best practices;
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Increasing the effectiveness of communication with end-users and funders;
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Tackling large-scale projects and research that are out of reach for individual shared print programs. This shared stewardship of collection is critical as local resources are depleted due to the COVID-19 pandemic and access to print for digitization increases.
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Lutz Bornmann Rüdiger Mutz Sven E. Hug Hans-Dieter Daniel 《Journal of Informetrics》2011,5(3):346-359
This paper presents the first meta-analysis of studies that computed correlations between the h index and variants of the h index (such as the g index; in total 37 different variants) that have been proposed and discussed in the literature. A high correlation between the h index and its variants would indicate that the h index variants hardly provide added information to the h index. This meta-analysis included 135 correlation coefficients from 32 studies. The studies were based on a total sample size of N = 9005; on average, each study had a sample size of n = 257. The results of a three-level cross-classified mixed-effects meta-analysis show a high correlation between the h index and its variants: Depending on the model, the mean correlation coefficient varies between .8 and .9. This means that there is redundancy between most of the h index variants and the h index. There is a statistically significant study-to-study variation of the correlation coefficients in the information they yield. The lowest correlation coefficients with the h index are found for the h index variants MII and m index. Hence, these h index variants make a non-redundant contribution to the h index. 相似文献