共查询到20条相似文献，搜索用时 31 毫秒
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[目的/意义]构建知乎信息传播过程PROV数据起源模型和用户可信度评价指标,量化知乎信息的可信度,丰富和完善社会化问答社区平台信息可信度评估的方法。[方法/过程]以知乎为研究对象,从信息传播过程的角度出发引入数据起源概念评估信息的可信度,通过建立知乎的PROV数据起源模型,追溯并记录知乎信息的来源和传播过程,与信息传播过程中涉及到的用户可信度分值相结合,计算出知乎信息的可信度定量结果。[结果/结论]通过对知乎信息可信度的评估,进一步完善信息可信度评估方法,为优化社区信息质量提供新思路。 相似文献
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跨源健康信息搜寻的动机、信息源选择及行为路径 总被引：1，自引：0，他引：1
本研究旨在探究用户面临多种健康信息源时的跨源健康信息搜寻行为,揭示这类信息搜寻行为的动机、信息源选择和行为路径。结合日记法和半结构化深度访谈法,收集并分析了26名参加者的健康信息搜寻日记及跟踪访谈数据,使用NVivo11分析数据。研究发现医生-用户交流障碍、信任缺失、用户自我调节和用户安全心理的需要是促使跨源健康信息搜寻行为产生的动机。相似病症用户的自我陈述、用户的路径依赖(习惯)、从众心理、信息源的权威性及可信度是影响用户跨源过程中信息源选择的主要因素。此外,用户跨源搜寻健康信息的过程中,其心理需求大于实际需求、凭“感觉”感知网络健康信息质量等特征较明显。本研究构建了跨源健康信息搜寻行为路径模型,研究的结果有助于提升用户健康信息搜寻行为认知,改善其跨源健康信息获取能力,提升其健康信息素养;同时,也为相关部门制定提升公民健康信息素养策略及支持跨源健康信息搜寻行为的信息系统的开发和设计提供了借鉴。 相似文献
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《Library & information science research》2000,22(2):145-163
Knowledge about the information needs and seeking behavior of scientists could play a vital role in meeting their information needs effectively. Libraries can use this knowledge for re-orienting their collections and facilities to attune them to the needs of the scientific community. This study explores information needs and seeking behavior of Malaysian agricultural scientists. It was found that research scientists spent 16% of their office time on reading and literature searching, whereas academicians spent 9.3% of their time for this purpose. The study also revealed that scientists preferred using primary sources of information, particularly journal and review articles. Informal communication with professional colleagues was also considered important for exchanging current research information. A large number of the participants felt that they had not been keeping in touch with scientific literature due to deficient library collections and services. This article recommends that science and technology libraries should periodically survey the information needs of their users, assess their collections and facilities, and strengthen their promotional activities. 相似文献
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《The Journal of Academic Librarianship》2023,49(4):102745
This research explored the perceptions of university students about the credibility of information being shared on Facebook. The data were collected using an online questionnaire from university students who were Facebook users. A total of 325 usable responses were received which were analyzed using SPSS. The results revealed that these students perceive information shared on Facebook as credible and of good quality. The source credibility, medium credibility, and information quality had positive and significant relationships with each other. The age, social background, and educational level of students appeared to predict the credibility of information shared on Facebook. These results are useful for information professionals and social media managers in extent to understand and cater to the demands of information consumers. These findings would also be helpful for teachers, information providers, and researchers to understand the perspectives of developing countries' students on the credibility of social media information. Furthermore, this study is supposed to be a valuable addition in existing literature which could provide guidelines for novice researchers, interested in exploring the area, especially in the context of Facebook users in a developing country's context. 相似文献
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[目的/意义] 针对日益棘手的健康信息可信性问题,研究影响在线健康社区信息可信性的中心路径因素和外围路径因素,以利于学界和业界为在线健康社区的管理者和用户在采取多种措施提高信息的可信性方面提供新的思路和理论指导。[方法/过程] 基于精细加工可能性模型建立在线健康信息可信性的影响因素模型,并应用多元回归分析方法对模型进行检验。[结果/结论] 数据分析结果表明:论据质量、信息完整性、表达质量、一致性和来源可信性对信息可信性均有显著影响;自我效能正向调节中心路径变量对信息可信性的作用,负向调节外围路径变量对信息可信性的作用。 相似文献
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ABSTRACTWith reference to the current debate about a loss of trust in news media, journalism experts in practice and research often demand that journalists should concentrate on enhancing the quality of their reporting and hence focus on facts and evidences. Building on research on trust and credibility, we investigate how the use of different forms of evidences affects the credibility and quality evaluation of news stories, as well as the reading experience from the audience’s perspective. We conducted an online experiment to detect the influence of the presence of scientific sources, statistical information, and their visualization in an online article. Our findings indicate that these evidences increase the perceived credibility. At the same time, we found that adding scientific sources, statistical data and, visualizations to an article does not lessen its reading enjoyment but improves its perceived vividness in the view of news users. Further results and implications are discussed. 相似文献
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[目的/意义]探究互联网情境下用户人格特质对互联网信息采纳行为的影响,为规制互联网行业发展及引导互联网用户信息采纳行为提供理论依据。[方法/过程]基于信息采纳模型、人格特质理论,探究用户人格特质变量对互联网信息采纳行为的调节效应。采用综合社会调查数据(CGSS),使用ologit回归模型对理论假设进行分析验证。[结果/结论]研究发现,信息采纳模型在互联网情境下更为重要,互联网信息质量与来源可信度决定互联网用户信息有用性的感知水平,进而影响信息采纳行为;用户人格特质变量对互联网信息采纳行为存在显著的间接影响力,且这种影响力存在显著的性别差异。 相似文献
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The current study investigates how social media affordances influence individuals’ source credibility perceptions in the presence of risk information, specifically examining how bandwagon heuristics interact with different identity heuristics at the individual level. The MAIN model and warranting theory serve as the theoretical framework to examine the effects of bandwagon cues and identity cues embedded in retweets and users’ profile pages for health and risk online information processing. A posttest-only experiment with a self-report questionnaire was administered to participants. Results indicate that different online heuristic cues impact the judgments of competence, goodwill, and trustworthiness. Authority cues strongly influenced source credibility perceptions. A reverse-bandwagon effect was observed in influencing source credibility judgments. 相似文献
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[目的/意义]大数据时代需要将"人"数据化,科研人员也需要数据化。科研人员画像的建立,对于科研管理层全面了解科研人员的信息、客观评价其研究水平等有重要作用,可以作为分析科研人员研究行为或专家推荐的基础,提高科研管理效率。[方法/过程]首先提出科研人员画像的概念,认为其是描述科研人员信息的标签的集合。其次,以个人主页、知网、基金网等多个异构数据源的数据为基础,提出融合多源数据的科研人员画像构建方法,分别从科研人员的基础属性、科研偏好和科研关系三方面形式化描述了科研人员信息,并提取各个维度的标签,以可视化的方式展示其画像。最后,分别以国内外两位科研人员为例,说明了科研人员画像构建方法的可行性。[结果/结论]科研人员画像的构建适用于国内外的科研人员,能够全面描述科研人员信息并直观展示出来。 相似文献
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Nicolás Robinson-Garcia Cassidy R. Sugimoto Dakota Murray Alfredo Yegros-Yegros Vincent Larivière Rodrigo Costas 《Journal of Informetrics》2019,13(1):50-63
This paper presents a methodological framework for developing scientific mobility indicators based on bibliometric data. We identify nearly 16 million individual authors from publications covered in the Web of Science for the 2008–2015 period. Based on the information provided across individuals’ publication records, we propose a general classification for analyzing scientific mobility using institutional affiliation changes. We distinguish between migrants--authors who have ruptures with their country of origin--and travelers--authors who gain additional affiliations while maintaining affiliation with their country of origin. We find that 3.7% of researchers who have published at least one paper over the period are mobile. Travelers represent 72.7% of all mobile scholars, but migrants have higher scientific impact. We apply this classification at the country level, expanding the classification to incorporate the directionality of scientists’ mobility (i.e., incoming and outgoing). We provide a brief analysis to highlight the utility of the proposed taxonomy to study scholarly mobility and discuss the implications for science policy. 相似文献
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V. A. Markusova 《Scientific and Technical Information Processing》2008,35(3):120-127
This paper cites statistical data describing the tendencies in Russian scientists’ publishing activity in the period from 1993 to 2006 according to the DB Web of Science (WOS). An important result of the research is the fact that about 50% of the papers written by Russian authors were published in foreign scientific journals used to prepare the WOS. This is a demonstration that Russian science is highly integrated into international science. To conduct a comparative analysis of the scientific productivity of the Russian scientists we used statistics obtained from the SCOPUS information system and presented in the SJR portal. 相似文献
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Mohammad Khaled Al-Shboul 《The Journal of Academic Librarianship》2014,40(5):500-509
A persona represents a group of target users that share common behavioural characteristics. The personas method, an approach to systems design, has been receiving significant attention from practitioners. However, only anecdotal evidence currently exists for the effectiveness of personas and there have been criticisms about its validity as a scientific approach to research. This paper attempts to demonstrate how incorporating personas may lead to better understand the information needs of humanities scholars. Humanities scholars in an advanced ICT environment in the Hashemite Kingdom of Jordan are sampled as a case. Previous studies show that the humanities scholars have a significant negative relation with ICT use; they are using it less than scientists and social scientists, and they demonstrate a significantly higher use of library facilities than other academics. There is also a lack of up-to-date international research on the humanities scholars' information needs that takes into account recent rapid increases in the availability of ICT infrastructure, especially the Internet. As such, the objective of this study is to understand the information needs of humanities scholars and the effect of the electronic environment on their information seeking behaviour using personas. This study is conducted within a conceptual framework based on an integration of existing models of information-seeking behaviour, along with additional new elements representing the information context environment, such as languages, decision to seek and format of information resources. The four personas that were uncovered in this study may be able to effectively communicate the actual information needs of the humanities scholars through the personal narrative, name, and face, which continuously will remind the academic library of what their users really want and need from their services. This study also lays the foundation for future research by identifying variables of interest, and building construct validity through the themes of information needs that emerged. 相似文献
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Roberta Bronson Fitzpatrick 《Medical reference services quarterly》2013,32(4):363-370
WorldWideScience.org is a Web-based global gateway connecting users to both national and international scientific databases and portals. This column will provide background information on the resource as well as introduce basic searching practices for users. 相似文献
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从方法论角度论述了对文献信息的科学认识，分析了文献信息科学概念的产生、形成及其学科建设的积极意义。 相似文献
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用户视角下社会化问答社区信息可信度评价研究 总被引：2，自引：1，他引：1
[目的/意义] 基于用户角度,对信息可信度评价进行研究,分析用户可信度评价行为,探索用户可信度评价指标体系,对信息可信度评价理论研究具有重要意义。[方法/过程] 采用扎根理论方法,从信源、信息内容和结构、媒介3个维度对问答社区语境下用户信息可信度评论进行编码,分析用户在真实情境下的可信度评价决策。[结果/结论] 用户更倾向于使用信息内容维度评价指标对信息可信度进行评价。单项指标使用频率较高的是准确性、逻辑性、客观性;联合指标是准确性与客观性、准确性与合理性。专业知识背景影响用户的可信度评价深度,专业背景与话题的相关性越高,可信度评论的影响力越大。 相似文献
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对中国内地高影响力论文及其19 位第一作者信息进行深度的跟踪、挖掘,从论文学科、排名、作者经历
等角度出发,分析得出关于人才成长和培养的结论和建议。从分析结果看,中国的高影响力自主论文在学科分布上非
常集中,论文作者立足国内做出了被国际所承认的研究成果,并且能够长期坚持在科研一线,为国家科研事业继续贡
献力量。 相似文献
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文章系统地分析了市民在信息查找中选择某种信息源的原因和不选择其他信息源的原因、信息需求类型和信息源类型对选择原因的影响以及各类用户在选择信息源时的倾向,指出提高信息服务方便性是信息服务和信息机构存亡兴衰的关键。 相似文献
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科学数据开放共享活动中不同利益相关者动力分析 总被引：4，自引：3，他引：1
[目的/意义]研究科学数据开放共享动力，以为我国科学数据开放共享实践提供理论指导。[方法/过程]运用利益相关者理论和规范分析法，解析不同利益相关者参与科学数据开放共享的动力。[结果/结论]利益相关者理论可以用于指导科学数据开放共享实践。科学数据开放共享利益相关者主要包括政府、研究机构、研究资助机构、图书情报机构、数据中心、行业协会、出版社、研究人员、其他企业、用户等。这些利益相关者都可从科学数据开放共享受益，拥有不同的利益和动力。 相似文献