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151.
Scientific research is increasingly relying on collaborations to address complex real-world problems. Many researchers, policymakers, and administrators consider a multidisciplinary environment an important factor for fostering research collaborations, especially interdisciplinary ones that involve researchers from different disciplines. However, it remains unknown whether a higher level of multidisciplinarity within an academic institution is associated with internal collaborations that are more prevalent and more interdisciplinary. Analyzing 90,000 publications by 2500 faculty members in over 100 academic institutions from three multidisciplinary areas, information, public policy, and neuroscience, we investigated the connection between multidisciplinarity and research collaborations. Based on social network analysis and text mining, our analysis suggests that more multidisciplinary institutions are not necessarily more collaborative, although they do feature collaborations that are more interdisciplinary. Our findings provide implications for academic administrators and policymakers to promote research collaborations and interdisciplinarity in academic institutions. 相似文献
152.
Mike Thelwall 《Journal of Informetrics》2018,12(2):430-435
Dimensions is a partly free scholarly database launched by Digital Science in January 2018. Dimensions includes journal articles and citation counts, making it a potential new source of impact data. This article explores the value of Dimensions from an impact assessment perspective with an examination of Food Science research 2008–2018 and a random sample of 10,000 Scopus articles from 2012. The results include high correlations between citation counts from Scopus and Dimensions (0.96 by narrow field in 2012) as well as similar average counts. Almost all Scopus articles with DOIs were found in Dimensions (97% in 2012). Thus, the scholarly database component of Dimensions seems to be a plausible alternative to Scopus and the Web of Science for general citation analyses and for citation data in support of some types of research evaluations. 相似文献
153.
Joseph Deodato 《Journal of Web Librarianship》2018,12(1):1-27
The emergence of social media has radically transformed the way we create and consume information. These changes have in turn given rise to new models of librarianship centered on principles of participation, interaction, and collaboration. Over the last decade, academic libraries have eagerly adopted social media as a means of enhancing services and connecting with a new generation of users. But how exactly has this technology changed libraries? In what ways has the social web transformed library services or our relationships with users? This article attempts to assess the impact of social media on academic libraries in the United States through a review of the literature published since 2005. In particular, it looks at how academic libraries have used social media to improve or develop new services. By comparing published case studies with the theoretical literature, this article seeks to separate theory from practice and determine the extent to which the social web has transformed library practice. The author concludes that, despite several noteworthy examples, the majority of social library applications ultimately fail to live up to the transformative potential promised within the literature and that this failure may have more to do with philosophical rather than technical limitations. 相似文献
154.
以产业化经营推动我省粮食经济发展 总被引:1,自引:0,他引:1
在分析了我省粮食经济的成就和主要问题之后,提出以产业化经营推动我省粮食经济发展.指出我省农业产业化存在的问题是区域分工、产业结构调整和企业模式选择并进行分析. 相似文献
155.
通过对近十年我国体育教师专业能力的文献收集,将其分为中小学和大学两大类,并对每类文献做结构、现状、策略的综述。研究方法为文献资料法,逻辑分析法。研究结果:学者对体育教师专业能力结构的见解具有交叉性,但缺少统一的认识,研究范围较小,不足以代表合格教师所应具备的专业能力;现状和策略的研究较为陈旧,对提出的策略没有进一步跟进,策略缺乏创新,需要更深层次的研究。 相似文献
156.
袁君煊 《渭南师范学院学报》2014,(1):48-51
《四时田园杂兴》是范成大退居石湖创作的一组诗歌,自问世以来颇受瞩目,但至今仍少有人关注其特殊的结构形式。作者选择这一特殊结构形式有其特殊的寓意:纪念伴随其出生以来历久弥深的国耻。这一选择的驱动力来自我国的文化传统、作者的经历及对诗歌风格的好尚。 相似文献
157.
金震海 《楚雄师范学院学报》2011,26(2):30-33,102
新罗时期的国语诗歌又称之为乡歌,它是朝鲜半岛最古老的国语诗歌。乡歌作品共有25首,其中《三国遗事》所载14首,《均如传》所载11首。通过对新罗乡歌作品结构的分析,可以进一步了解新罗国语诗歌的构成形式。《三国遗事》所载14首乡歌作品因其类型的多样性和记录方法的特殊性,在结构层面上也表现出了独特的一面。 相似文献
158.
中文电子病历的分词及实体识别研究 总被引:1,自引:0,他引:1
[目的/意义]健康医疗大数据是我国重要的基础性战略资源,本研究对中文电子病历分词与实体识别的探讨与实证较好地完成了医疗数据的信息抽取任务,对今后医疗大数据在语义层面的应用发展具有重要意义。[方法/过程]本研究首先融合权威词表、官方标准、健康网站数据及其他医学补充词库构建了词语数量级达到10万的医学词表;然后对电子病历的字段进行分词,对比了jieba工具、导入词典后的jieba、无监督学习及AC自动机4种模型的分词效果;最后,以自动分词和人工标注结果为语料,实现基于条件随机场的电子病历实体识别研究,并比较不同实体类别以及不同文本特征下的实体识别效果,选出最优模板。[结果/结论]分词结果显示,AC自动机的效果最好,F值可达82%;实体识别结果表明,"检查"和"疾病"实体的识别效果最好,而"症状"的识别效果不太理想。 相似文献
159.
[目的/意义]社交媒体是网络信息资源的重要组成部分,对国内外社交媒体存档的相关研究成果进行总结与梳理,形成比较完整的综述内容,为国内该领域研究提供参考与借鉴。[方法/过程]基于多学科视角,通过文献计量与内容分析得到社交媒体存档领域的文献分布情况,总结社交媒体存档的理论基础,从宏观层面将社交媒体存档理论与实践研究归纳为"目的与主体""政策与指南""问题与障碍"三个研究主题并展开综述。[结果/结论]国内外社交媒体存档研究具有发展速度较快、与实践结合紧密、区域发展不均衡等特征,在未来研究中需要重视研究对象的变化、管理标准的构建以及多主体间的协作。最后对国内社交媒体存档研究与实践的发展提出建议。 相似文献
160.
David Andrich 《Educational Measurement》2016,35(4):25-30
Since Cronbach's (1951) elaboration of α from its introduction by Guttman (1945), this coefficient has become ubiquitous in characterizing assessment instruments in education, psychology, and other social sciences. Also ubiquitous are caveats on the calculation and interpretation of this coefficient. This article summarizes a recent contribution (Andrich, 2015) on the use of coefficient α which complements these many caveats. It shows that in the presence of a simple bifactor structure of a scale where unique components of variance are homogeneous in magnitude, three components of variance and the common latent common correlation among the subscales can be calculated from the ratio of two calculations of α, one at the level of the items, the other at the level of the subscales. It was suggested that these two ready calculations and their interpretation, and the reporting of all four indices in the analysis of scales with a subscale structure, would reduce the misinterpretation of this coefficient. An illustrative example of the application of the calculations is also shown. 相似文献