Can Google Scholar and Mendeley help to assess the scholarly impacts of dissertations?     

Kayvan Kousha  Mike Thelwall 《Journal of Informetrics》2019,13(2):467-484

Dissertations can be the single most important scholarly outputs of junior researchers. Whilst sets of journal articles are often evaluated with the help of citation counts from the Web of Science or Scopus, these do not index dissertations and so their impact is hard to assess. In response, this article introduces a new multistage method to extract Google Scholar citation counts for large collections of dissertations from repositories indexed by Google. The method was used to extract Google Scholar citation counts for 77,884 American doctoral dissertations from 2013 to 2017 via ProQuest, with a precision of over 95%. Some ProQuest dissertations that were dual indexed with other repositories could not be retrieved with ProQuest-specific searches but could be found with Google Scholar searches of the other repositories. The Google Scholar citation counts were then compared with Mendeley reader counts, a known source of scholarly-like impact data. A fifth of the dissertations had at least one citation recorded in Google Scholar and slightly fewer had at least one Mendeley reader. Based on numerical comparisons, the Mendeley reader counts seem to be more useful for impact assessment purposes for dissertations that are less than two years old, whilst Google Scholar citations are more useful for older dissertations, especially in social sciences, arts and humanities. Google Scholar citation counts may reflect a more scholarly type of impact than that of Mendeley reader counts because dissertations attract a substantial minority of their citations from other dissertations. In summary, the new method now makes it possible for research funders, institutions and others to systematically evaluate the impact of dissertations, although additional Google Scholar queries for other online repositories are needed to ensure comprehensive coverage.  相似文献   

Evaluating research and researchers by the journal impact factor: Is it better than coin flipping?     

Ricardo Brito  Alonso Rodríguez-Navarro 《Journal of Informetrics》2019,13(1):314-324

The journal impact factor (JIF) is the average of the number of citations of the papers published in a journal, calculated according to a specific formula; it is extensively used for the evaluation of research and researchers. The method assumes that all papers in a journal have the same scientific merit, which is measured by the JIF of the publishing journal. This implies that the number of citations measures scientific merits but the JIF does not evaluate each individual paper by its own number of citations. Therefore, in the comparative evaluation of two papers, the use of the JIF implies a risk of failure, which occurs when a paper in the journal with the lower JIF is compared to another with fewer citations in the journal with the higher JIF. To quantify this risk of failure, this study calculates the failure probabilities, taking advantage of the lognormal distribution of citations. In two journals whose JIFs are ten-fold different, the failure probability is low. However, in most cases when two papers are compared, the JIFs of the journals are not so different. Then, the failure probability can be close to 0.5, which is equivalent to evaluating by coin flipping.  相似文献   

大学图书馆成效评估及其指标体系构建探索     

向远媛  温国强 《大学图书馆学报》2011,29(3):11-16,21

大学图书馆成效评估是对用户在接触图书馆所提供的资源、服务和活动之后所发生的改变进行评估。绩效评估关注图书馆投入与产出的效率,成效评估关注图书馆服务的影响与效果。大学图书馆成效评估的内容主要包括对学习、研究、教学的影响评估。该文结合国外大学图书馆成效评估的实践案例,对大学图书馆成效评估的定义、内容、意义以及评估指标体系等进行探索。成效评估是基于用户为中心的新的评估理论和方法,有利于争取社会各界对图书馆的支持和提高图书馆服务质量。  相似文献   

建设项目方案环境影响的AHP排序     

贾晓坤  肖红科  李明珠  苏海风 《中国科技信息》2011,(9):82-83

将运筹学中的层次分析法（AHP）应用于建设项目方案环境影响优选决策中,可以减少在建设项目方案优选决策过程中的盲目和随意性。本文分析了建设项目方案环境的影响因素,用AHP确定建设项目方案环境问题的层次结构及其评价准则权重,应用一个实际例子说明了此方法的应用。  相似文献   

基于NCI的“985工程”高校学科的学术影响力评价     

李峰  缪亚军  戚巍 《科学学与科学技术管理》2011,32(10)

采用“标准影响力”（NCI）方法对“985工程”高校的自然科学、生命及医药科学、工程与技术科学三大学科领域进行评价,发现各学科的学术影响力总体水平不高。基于NCI的学科评价结果不仅能衡量学校之间的相对差距,还能衡量相应学科与世界一流学科的差距,同时具有诊断性和战略性的特点。  相似文献   

国家安全视域下宗教在高校的传播及对大学生的影响研究     

赵文永 《煤炭高等教育》2014,(4):17-21

宗教在我国具有悠远的传播历程,宗教中的优秀内容和丰厚的艺术积淀也一度为中华文明的发展提供了良好的借鉴。但宗教传播从一开始就泥沙俱下,和平时期亦是屡见不鲜。高校作为大学生思想政治教育工作的重要阵地和平台,必须从国家安全的视域下,明辨宗教在学生中传播的优劣,在维护国家宗教政策的同时,摒弃不良影响和可能危害国家安全的内容,培养出更多有学识、有担当的社会主义合格建设者。  相似文献   

国内外黑色旅游研究综述     

胥桂凤  黄远水 《乐山师范学院学报》2014,(9):58-61

黑色旅游作为近年学界研究的新兴领域,其实践已先于理论,正在灾区火热开展。文章通过对黑色旅游研究文章的梳理,发现国外关于黑色旅游研究主要集中在其概念及分类、旅游者的行为动机、旅游开发方式与开发黑色旅游的影响等四方面;而国内关于黑色旅游的研究则主要集中在黑色旅游开发、旅游者动机与利益相关者、黑色旅游资源分类、黑色旅游影响及其伦理道德问题等四方面,文章分别对国内外研究进行了主题总结。  相似文献   

Dynamical analysis of winter terrain park jumps   总被引：1，自引：1，他引：0  

James A. McNeil  James B. McNeil 《Sports Engineering》2009,11(3):159-164

Jump features in winter terrain parks frequently pose a hazard to patrons and may represent a significant liability risk to winter resorts. By performing a simple dynamic analysis of terrain park jumps, the relative risk to impact injuries for any proposed jump design can be quantified thereby allowing terrain park designers to minimize the risk from this class of injury.  相似文献   

对NBA常规赛比赛胜负影响因素及Fisher判别分析     

潘建武 《四川体育科学》2012,(5):45-48

本文对2009-2010年NBA常规赛进行比赛胜负比较,探究影响比赛胜负的主要因素,分析主、客场存在的差异,从统计学的角度研究主场优势存在原因,并采用Fisher判别分析法建立判别分类函数,对比赛结果进行预测,为运动员、教练员了解对手情况和掌控本队获胜机率提供指导。  相似文献   

Say Goodbye…Let's Roll: The Social Dynamics of Wireless Networks on September 11     

《普罗米修斯》2012,30(3):237-245

This article describes the use of wireless telecommunication media within the different locations directly affected by the hijackings on September 11. Comparisons across these different contexts provides an empirical anchor to more general themes concerning the social dynamics of wireless in the unfolding events of this day. An indication is given of how the important social role of wireless phones in this crisis could redefine public views on wireless media and thereby shape policy and regulation in the years ahead.  相似文献