应用引文共引聚类-内容词分析法对学科发展的研究

将引文共引聚类与内容词分析法相结合揭示专题发展,通过引文共引聚类描述妊娠糖尿病专题研究的发展历史,通过高频引文的重要来源文献的内容词分析描述该专题研究现状,同时计算来源文献类内相似度、关联度及类间差异度,验证引文共引聚类的效果.     

未来传播视野下内容范式的三个价值维度——对于传播学一个元概念的探析

新一代信息技术革命正推动着新一代内容范式的建构。作为一种新的内容范式,内容在作为资讯传达的深度价值之外,还具有作为情感和关系表达的宽度价值,以及内容作为一种传播场景的媒介价值。虽然资讯内容的价值属性未改变,但专业媒介面临工作重心从直接内容生产向数据挖掘与生产组织协调的转型。泛众化传播到来的同时传播的情感和关系属性被放大,视频表达的宽信息容量彰显了内容作为引发关系认同和情感共鸣的宽度价值。面对碎片化传播语境与流动中的用户,无所不在、无处不有的内容作为一种场景的媒介价值显现出来--通过内容聚合趣缘用户,再通过数据驱动建构场景连接,最后促进供需双方的价值变现。     

Combining mapping and citation network analysis for a better understanding of the scientific development: The case of the absorptive capacity field

The general aim of this paper is to show the results of a study in which we combined bibliometric mapping and citation network analysis to investigate the process of creation and transfer of knowledge through scientific publications. The novelty of this approach is the combination of both methods. In this case we analyzed the citations to a very influential paper published in 1990 that contains, for the first time, the term Absorptive Capacity. A bibliometric map identified the terms and the theories associated with the term while two techniques from the citation network analysis recognized the main papers during 15 years. As a result we identified the articles that influenced the research for some time and linked them into a research tradition that can be considered the backbone of the “Absorptive Capacity Field”.     

The e-government research domain: A triple helix network analysis of collaboration at the regional,country, and institutional levels

This study introduces a hybrid approach (i.e., a social network analysis technique and triple helix indicators) to study certain aspects of the e-government (EG) domain that would otherwise remain hidden when using conventional analytic tools. Particularly, we provide network analysis of the EG research domain by focusing on the network collaboration between regions, nations and institutions. We collected and analyzed 1091 scholarly papers which were classified as being about “e-government” by the Web of Science database. The results indicate that hybrid method can be used to understand certain network-level structures and patterns in the EG domain which are beyond the scope of the predominantly-used systematic literature review (SLR) method. Particularly, the hybrid method is useful in understanding collaboration patterns between countries, institutions and regions in the EG domain, identifying key players by studying their network properties (i.e., degree centralities); and in understanding the pattern of relations among universities, industries, and government. The implications of these results in terms of research and practice, and study limitations are discussed.     

First and second-level agenda-setting in the 2014 Indian general election: a time-series analysis of party-media relation

The role of the press as a political watchdog is crucial to the functioning of democracy. Especially in the run-up to elections, voters depend on the media's presentation of parties and candidates to make informed, responsible choices at the ballot box. But who, then, influences the news media? Empirical evidence in the United States and Europe suggests that political party campaigns and election coverage in the news media are interconnected and influence each other. This study tests whether such agenda-setting effects between party campaigns and the media also take place in the general elections in the world's largest democracy, India. India's western-type political system has a distinct media system characterized by high competition, diversification, non-consolidation and formal and informal ties between the media, commercial interests and political actors. Content analysis and Granger's causality test of newspaper coverage (N?=?716) and party campaign messages (N?=?458) found that agenda-setting effects do occur in India, but are largely bi-directional. We also found an overwhelming focus of both newspapers’ election coverage and of all major party campaigns on one single candidate, the Bharatiya Janata Party (BJP)'s Narendra Modi. This, we argue, is a result of the broader trends that have shaped Indian politics in recent years. The significant correlations and non-significant causal effects between party campaign and media coverage also indicate a trade-off situation between political power negotiation and political balance in the press.     

单篇文献的引文计量指标与Altmetrics的比较分析——以ESI的HotPapers为例

通过选取不同的数据源和分析方法探究Altmetrics文献计量方式对传统的引文计量方式的影响,以及这些计量指标如何评价单篇论文的影响力。结合ESI数据库热点文章的被引频次与Scopus平台提供的Altmetrics各项计量指标,尝试利用SPSS统计软件来分析传统的引文评价指标与Altmetrics各评价指标之间的相关性和差异性。通过研究分析发现:以引文为评价基础的ESI热点文章并不一定对应Altmetrics的高分值文献;进一步的研究从评价论文影响力的5个指标中简化为2个公因子——社交传媒因子和学术引用因子,可从不同群体对文献的不同传播利用方式来评价一篇论文的影响力;不同出版模式的文献在各评价指标上也有显著的差异。