Subjects: Library Science，Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] Based on the protection motivation theory, this paper examines the impact of epidemic information on public's risk awareness, reveals how people perceive the epidemic risks, and explores the communication measures that can improve the public's intention to protect health.[Method/process] Through an online survey, this paper obtains 450 questionnaire data from 28 provinces in China, PLS is used for structural equation model analysis, and the hypothesis is finally verified through the measurement model and structural model detection.[Result/conclusion] This paper finds that threat awareness and countermeasure awareness can significantly improve the public's threat appraisal and coping appraisal, and form the unique risk perception characteristics. If we can follow these characteristics when communicating with the public, we will be able to maximize their intention to protect health. This paper also finds that the public's perception vulnerability is low, which may lead to a series of problems such as optimism bias, which deserve more attention.
Subjects: Library Science，Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] As the popular online Q&A mode, the free and fee online Q&A communities provide users with different information interaction scenarios, differentiated user needs can be met. This paper compares the participation behavior of two types of community users, and reveals the behavioral differences between them, finally some countermeasures and suggestions for the optimization of the two kinds of community service modes are put forward.[Method/process] The contingency table analysis, non-parametric test and negative binomial regression were used to analyze the interaction characteristics and interaction relations.[Result/conclusion] This paper finds that there are many differences between free and fee online Q&A users in information demand, participation characteristics and interaction relations, free online Q&A has the most opinion questions and paid online Q&A has the most advice questions; free questioners tend to ask abstract and general questions, while fee questioners tend to provide detailed background information; the length of questions negatively affects the number and length of free answers, and positively affects the length of fee answers; the question length and answer length positively affect the number of free and fee evaluations. This paper enriches the research on user participation behavior of online Q&A community, and provides some management suggestions for free and paid online Q&A community.
Subjects: Library Science，Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] Recently, health information has become prevalent on the Internet. The extensive information volume and heterogeneity in information quality increased the probability of encountering conflicting information in users’ health information seeking. However, it has been insufficiently explored how conflicting health information may impact users. This study departs from the relationship between information seeking and uncertainty reduction, as indicated by many classic information behavior theories. We raised a research question of whether the hypothesized relationship still stands in conflicting health information contexts. [Method/process] By employing the experimental approach and one-way analysis of variance (ANOVA), we examine the effects of conflicting health information on individuals regarding knowledge states, confusion, and health beliefs. [Result/conclusion] The results suggested that conflicting health information blurred knowledge states, increased confusion, and decreased health belief. Thus, we inferred that uncertainty increased when they encountered conflicting health information. Based on the results, several theoretical and practical implications were discussed.
Subjects: Library Science，Information Science >> Information Science submitted time 2017-11-08 Cooperative journals: 《数据分析与知识发现》
Abstract：【目的】提出一种具有语义发现功能的移动视觉搜索方法, 实现数字图书馆视觉资源内容和语义信息的全搜索。【方法】采用BIBFRAME、关联数据和图像处理技术获取视觉资源的语义信息和特征信息, 通过关联数据对特征信息和语义信息进行关联, 实现移动视觉搜索和语义搜索的融合。【结果】实验结果表明, 系统较好地实现了对视觉资源内容和语义的搜索, 弥补了传统移动视觉搜索在语义方面的不足。【局限】系统在检索效率上还存在不足, 特征处理算法和SPARQL 检索过程还需要进一步优化。【结论】本文提出的移动视觉搜索系统能够较好地实现视觉资源内容和语义的关联与搜索, 为数字图书馆语义信息发掘和服务模式创新提供了一种新的
Subjects: Library Science，Information Science >> Information Science submitted time 2017-11-08 Cooperative journals: 《数据分析与知识发现》
Abstract：【目的】提出一种具有语义发现功能的移动视觉搜索方法, 实现数字图书馆视觉资源内容和语义信息的全搜索。【方法】采用BIBFRAME、关联数据和图像处理技术获取视觉资源的语义信息和特征信息, 通过关联数据对特征信息和语义信息进行关联, 实现移动视觉搜索和语义搜索的融合。【结果】实验结果表明, 系统较好地实现了对视觉资源内容和语义的搜索, 弥补了传统移动视觉搜索在语义方面的不足。【局限】系统在检索效率上还存在不足, 特征处理算法和SPARQL 检索过程还需要进一步优化。【结论】本文提出的移动视觉搜索系统能够较好地实现视觉资源内容和语义的关联与搜索, 为数字图书馆语义信息发掘和服务模式创新提供了一种新的
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