An Asian digital libraries perspective     

《Information processing & management》2005,41(1):1-4

This introduces a special issue of IP&M that covers some of the best works from the International Conference on Asian Digital Libraries, 2002. Eight papers, from eight countries, cover a broad range of topics and themes. Many present models, algorithms, systems, and/or experiments. There are approaches based on probability theory, linguistics, user-centered design, and multimedia technologies. It is hoped that readers will apply key results, and participate in future ICADL events.  相似文献   

A survey of library services for autistic college students     

《The Journal of Academic Librarianship》2022,48(6):102591

According to the research literature, services at academic libraries and institutions of higher education do not adequately address the support needed to help autistic students thrive in college. We surveyed academic librarians about library services for autistic students at their libraries to better understand the relevant library services provided for this population. At the institutions surveyed, 37 % (n = 22) of libraries have a person responsible for accessibility issues, and 63 % (n = 37) do not have a person responsible for accessibility. Additionally, we found that 78 % (n = 47) of academic libraries provide services for disabled students and only 22 % do not (n = 13). Most pertinent to our research, 34 % of libraries (n = 20) provide services for autistic students and 66 % (n = 39) do not provide services for autistic students.  相似文献   

What makes a “happy” workplace for librarians? Exploring the organizational functions of academic libraries in South Korea     

《The Journal of Academic Librarianship》2022,48(6):102594

Academic libraries are facing the need to closely examine the effectiveness of current organizational functions in response to rapid changes in technology and the information environment. The purpose of this study is to explore the functions and issues of the academic library organization in South Korea based on the librarians' perceptions. We conducted a literature review about the changes in the role of academic libraries and organizational functions. In-depth interviews with 19 librarians and a content analysis of those interviews were conducted. As a result, we identified organizational characteristics pertaining to 1) internal functions of the library, such as communication, leadership, motivation, and team system, and 2) external functions, such as collaboration with external administrative departments, and utilization of personal networks. We also discovered mutual relationships among the functions. In particular, leader's support is important to continuously motivate librarians and increase the effectiveness of the team system, resulting in a positive effect on the reputation of the academic library. This study contributes to the academic library literature by comprehensively and empirically exploring functions affecting the services of academic libraries.  相似文献   

How does duplicate tweeting boost social media exposure to scholarly articles?     

《Journal of Informetrics》2022,16(1):101249

Duplicate tweeting is a kind of behavior that a user posts the same or substantially similar original tweets to one or several topics multiple times in a row, which is commonly used to boost social media exposure to online information. However, how this behavior boosts social media exposure to online information, especially to scientific publications, is still unclear. In this study, we use the number of retweets an article received as a proxy for social media exposure to the article. Based on the duplicate tweeting records of 12,263 users on Twitter from 2011 to 2017, we find that social media exposure to scholarly articles has a significant marginal effect as the number of duplicate tweeting (k) increases. It ramps up a peak value when k is between 2 and 4 and goes down when k takes a greater value. We also find that a longer posting interval can sharply reduce social media exposure to scholarly articles, and posting non-duplicate content can significantly improve the exposure. Our findings not only help scientists and journal publishers effectively improve the social impact of their research outputs but also advance the understanding of the diffusion processes of scholarly articles.  相似文献   

Do international nonstop flights foster influential research? Evidence from Sino-US scientific collaboration     

《Journal of Informetrics》2022,16(4):101348

The tacit nature of knowledge suggests that face-to-face interactions in international academic collaborations are irreplaceable. Yet, such anecdotal evidence has not been adequately examined in the extant literature. Using the difference-in-differences estimation strategy, this paper investigates the causal effect of international nonstop flights on the quantity of high-impact Sino-US joint publications over the period between January 2009 and December 2018. We find that, on average, US-China international nonstop flights boost the production of influential articles aggregated at Chinese cities, with cities with less human capital earning more benefits. We do not find evidence in support of the crowding-out effect indicating this positive effect comes at the expense of domestic and international collaboration opportunities with other countries. These findings remain robust with various specifications. Policy implications for promoting global collaboration through face-to-face communication are discussed in the end.  相似文献   

Exploring scientific trajectories of a large-scale dataset using topic-integrated path extraction     

《Journal of Informetrics》2022,16(1):101242

Main path analysis (MPA) is the most widely accepted approach to tracing knowledge transfer in a research field. In this study, we extracted multiple longest paths from the multidisciplinary academic field's citation network and integrating topic modeling to the extracted paths. We consider three main aspects of trajectory analysis when analyzing the represented documents through the extracted paths: emergence, authority, and topic dynamics. For path extraction, we adopt the longest path algorithm that consists of the following three steps: 1) topological sort, 2) edge relaxation, and 3) multiple path extraction. For topic integration into multiple paths, we employ latent Dirichlet allocation (LDA) by utilizing the topic-document matrix that LDA derives to select an article's topic from the citation network, where each article is labeled with the topic that is assigned with the highest topical probability for that article. We conduct a series of experiments to examine the results on a dataset from the field of healthcare informatics that PubMed provides.  相似文献   

大数据情境下面向突发气象灾害应急决策的情报响应体系研究     

朱光  颜燚  张琳娜 《情报工程》2022,(1)

[目的/意义]针对突发气象灾害应急决策的情报保障需求,构建了以大数据环境为基、情报技术为力、情报流控制为策、应急决策为标的新型情报响应体系。[方法/过程]本文详细阐述了面向突发气象灾害应急决策的情报响应体系中的整体框架与具体内容,分析了情报响应系统的运行机理。[结果/结论]该应急决策情报体系围绕情报的采集、组织、分析和应用等活动,对大数据环境下突发气象灾害的数据信息进行自动监测与挖掘,充分利用机器学习、自然语言处理等技术进行情报分析,从而为突发气象灾害的事前、事中与事后提供各种决策支持与情报服务。  相似文献   

数据格式转换软件的设计与实现     

刘芳  杨海滨  华薇娜 《现代图书情报技术》2008,3(4):80-85

总结了在信息检索与信息分析的中间环节数据格式转换中存在的困难,并结合文本文件、Word软件、VC++编程以及EXCEL软件各自特殊功能,设计了一套较为通用、简单的数据转换程序,开发了一个简单实用的小软件,并介绍了软件的使用方法和实现算法。  相似文献   

美国计算机犯罪立法的发展与启示     

张琳 《图书与情报》2006,(5):89-92,97

计算机犯罪已严重危害了信息系统安全，各国政府也已认识到打击和惩罚计算机犯罪、保护信息系统安全的重要性。美国很早就将保护信息系统安全纳入了法治化的轨道，在打击计算机犯罪中也积累了丰富的经验。文章通过探讨美国计算机犯罪立法的历史沿革和最新发展，对信息系统安全的法治化进程中的规律进行总结，以期为我国的信息法制建设提供借鉴。  相似文献   

基于既定词表的自适应汉语分词技术研究   总被引：3，自引：0，他引：3  

黄水清  程冲 《现代图书情报技术》2006,1(5):13-17

提出一种汉语分词算法，在给定的分词词表的基础上进行汉语分词时，不但能成功切分出分词词表中已有的词，而且能同时自动识别出分词词表中没有的词，即未登录词。与逆向最长匹配法以及其他未登录词识别算法进行的测试比较表明，该分词算法可以有效地解决大多数未登录词的识别问题，并且能减少分词错误，同时对分词算法的效率基本没有影响。  相似文献