安徽省卫生信息管理专业人才的需求与培养

分析了我国卫生信息化建设发展形势和安徽省卫生信息管理专业本科生培养现状,并从招生情况、课程设置和毕业生流向等方面提出了进一步加强卫生信息管理人才培养和为医疗卫生信息化建设专业人才建制设岗的建议。     

社会化问答社区中糖尿病健康信息的需求分析

为了解消费者对糖尿病信息的需求,选取雅虎问答中糖尿病相关的8762条提问记录作为研究对象,根据糖尿病信息的类目体系及分类策略对其进行人工编码,再进行文本处理,获得表征糖尿病健康信息需求的587个中心词,并通过多维尺度分析方法,对每个需求类目下的中心词进一步聚类发现,消费者对于糖尿病健康信息最大的关注点是日常疾病管理、疾病确诊和治疗,而对疾病预防缺乏应有的关注度。     

艾滋病疫苗专题文献引文特征的可视化分析

以Web of Science的艾滋病疫苗研究文献作为数据来源,利用引文分析可视化软件HistCite,找出代表艾滋病疫苗研究领域发展的重要文献,并分析文献之间引用与被引用关系和引用序列,获得引文编年图谱,梳理出艾滋病疫苗研究领域的发展规律和历史发展轨迹,为国内外相关领域的研究人员提供一定的参考。     

用户关系网络研究综述

文章对社会网络用户关系研究相关文献进行梳理和总结,对社会网络用户关系性质、用户关系网络形成相关理论进行阐述,然后总结关系网络测度相关指标和方法,探究网络中节点影响力的测度以及网络结构特征和演化规律,最后总结研究应用领域并展望未来研究方向。     

Content-based author co-citation analysis

Author co-citation analysis (ACA) has long been used as an effective method for identifying the intellectual structure of a research domain, but it relies on simple co-citation counting, which does not take the citation content into consideration. The present study proposes a new method for measuring the similarity between co-cited authors by considering author's citation content. We collected the full-text journal articles in the information science domain and extracted the citing sentences to calculate their similarity distances. We compared our method with traditional ACA and found out that our approach, while displaying a similar intellectual structure for the information science domain as the other baseline methods, also provides more details about the sub-disciplines in the domain than with traditional ACA.     

A regression analysis of researchers’ social network metrics on their citation performance in a college of engineering

Previous research shows that researchers’ social network metrics obtained from a collaborative output network (e.g., joint publications or co-authorship network) impact their performance determined by g-index. We use a richer dataset to show that a scholar's performance should be considered with respect to position in multiple networks. Previous research using only the network of researchers’ joint publications shows that a researcher's distinct connections to other researchers, a researcher's number of repeated collaborative outputs, and a researchers’ redundant connections to a group of researchers who are themselves well-connected has a positive impact on the researchers’ performance, while a researcher's tendency to connect with other researchers who are themselves well-connected (i.e., eigenvector centrality) had a negative impact on the researchers’ performance. Our findings are similar except that we find that eigenvector centrality has a positive impact on the performance of scholars. Moreover, our results demonstrate that a researcher's tendency toward dense local neighborhoods and the researchers’ demographic attributes such as gender should also be considered when investigating the impact of the social network metrics on the performance of researchers.     

CitNetExplorer: A new software tool for analyzing and visualizing citation networks

We present CitNetExplorer, a new software tool for analyzing and visualizing citation networks of scientific publications. CitNetExplorer can for instance be used to study the development of a research field, to delineate the literature on a research topic, and to support literature reviewing. We first introduce the main concepts that need to be understood when working with CitNetExplorer. We then demonstrate CitNetExplorer by using the tool to analyze the scientometric literature and the literature on community detection in networks. Finally, we discuss some technical details on the construction, visualization, and analysis of citation networks in CitNetExplorer.     

International Collaboration Activity Index: Case study of dye-sensitized solar cells

International scientific collaboration has been the dominant driving force for promoting scientific and technological advancement. However, current international scientific collaboration analysis and evaluation mainly concentrate on the exploration of international collaboration network; hence, an evaluation method of international scientific collaboration is yet to be formed. In this paper, we take the dye-sensitized solar cells (DSSCs) as an empirical object and combine the international collaboration network with geographic information, which we call the International Collaboration Map, to display the international collaboration situations among countries or regions worldwide (inter-country collaboration), the collaborations among countries or regions within each continent (intra-continent collaboration), and the collaborations among continents (inter-continent collaboration) from different angles. Based on the thought of fractional count, this study introduces the indicators of collaborative country rank, international collaboration width, and international collaboration activity; the study employs the International Collaboration Activity Index (ICAI) to comprehensively measure the degree of countries or regions international collaboration at the country or region level. It systematically evaluates the differences between the active degree of relevant countries or regions in collaborative research. We use correlation analysis among the five sub-criterions and verify the rationality of index construction. K-means clustering analysis is undertaken among 84 countries or regions in the DSSCs field. The results show the formation of three groups, each with their unique international collaboration features.     

Networking or Not Working?

This paper examines journalists' changing sourcing practices in the context of an emerging media ecology initiated by processes of globalization, digitization, commercialism and concentration. Social media platforms such as Facebook, Twitter or YouTube provide the means to access a more diverse range of sources, including civil society organizations and ordinary citizens. We developed a quantitative content analysis to examine to what extent Belgian news coverage showed signs of diverse sourcing practices during the 2011 uprisings in three Arab countries. We analysed a total sample of 1121 news items about the street protests in Syria, Egypt and Tunisia, in four Belgian newspapers (two popular and two quality dailies) and two Belgian broadcasters (the public broadcaster VRT and the commercial channel VTM). The analysis shows that ordinary citizens and non-mainstream groups are important news sources and that social media platforms are consulted relatively often compared to everyday foreign news coverage. In terms of inter-media differences, the findings show that broadcasters' dependency on video footage and eyewitness accounts is reflected in their use of ordinary citizen sources and amateur footage. Moreover, the analysis confirms that quality newspapers display more diverse and more innovative sourcing practices than popular newspapers.     

2004-2013年国内图情领域网络舆情研究综述

采用主题分析的方式,梳理了近10年国内图情领域的网络舆情研究,发现使用文献计量、知识图谱等方法对网络舆情研究热点进行分析已比较成熟,而从内容层面探讨图情学科如何应用网络舆情提供服务方面的理论支撑薄弱,图情领域针对网络舆情的研究目的、理论支撑、技术方法乃至应用价值尚存诸多问题,有待进一步深入研究。