Subjects: Library Science，Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] As one of the important channels for the communication between governments and young citizens, the information communication effect of government agencies' official accounts on Bilibili determines the communication efficiency and effect. Thus, studying on the influence factors of the information communication effect of these accounts will benefit the communication effect.[Method/process] By using the content analysis and regression analysis, this study took 471 samples of the official account of The Central Committee of the Communist Young League in Bilibili as an example to systematically explore the influence of content theme, video category, the image of cover, screen format, subtitles, organizational form, editing rate, and video duration on the communication effect of government accounts in Bilibili.[Result/conclusion] The results show that the theme of technology, music, and fashion can improve the overall communication effect, and technology videos have the highest contribution; melodrama, live video, and surveillance video all significantly affect the overall communication effect, and live video has the highest contribution. What's more, video clip rate, vertical screen video, subtitle addition, collaborative creation, etc. can make a positive effect as well. The vertical screen contributes the most. Yet video duration and covers are not significant. The operation of government Bilibili accounts should fully release the patriotic emotion of youth, make some innovations on the video form, optimize the process of making videos and make some innovations on the organization form.
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 social media, this paper explores the dynamic classification of different stakeholders in the information life cycle of emergencies and the evolution rules of their concerns, so as to provide basis for more accurate crisis information monitoring and dynamic decision-making.[Method/process] Based on the factual text data of specific crisis events, guided by stakeholder theory and dynamic topic model, a three-dimensional dynamic topic evolution model was constructed to mine the classification and topic concerns of different stakeholders in social media crisis events. It included time granularity division, quantitative evaluation of stakeholders, identification and characterization of crisis themes based on time and subject. Finally, the dynamic trend was characterized by visualization tools.[Result/conclusion] Based on the three-dimensional dynamic theme evolution model, the composition and classification of stakeholders have obvious differences in different stages. At the same time, their focus themes and behavior characteristics also show different preferences and dynamic differences. The dynamics of the crisis stakeholders and the crisis theme are effectively combined, which can more comprehensively express the characteristics and regulars of public opinion dissemination.
Subjects: Library Science，Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] This study further elaborates the intervention mechanism of social bots on netizens' sentiment and provides suggestions for the management of public opinions in online emergencies.[Method/process] Taking the incident of Zhao Xiaojing in Renji Hospital as an example, with the Naive Bayes method calculating Weibo sentiment orientation, this study used the Granger causality test, impulse response analysis, and variance decomposition analysis based on the vector autoregression model (VAR) to judge the sentiment relationship between social bots, opinion leaders and ordinary users at all stages of the event life cycle.[Result/conclusion] The sentiment relationship between social bots, opinion leaders, and ordinary users changed with the evolution of the event. In the outbreak stage, social bots amplified the sentiment influence of opinion leaders on ordinary users. In the mature stage, the influence of social bots declined, and the sentiment of ordinary users reacted to social bots and opinion leaders. In the decline period, the three maintained a relatively independent sentiment relationship; Besides, the influence strategies of social bots were both insidious and indirect.
Subjects: Library Science，Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] This study aims to coordinate more complex crisis information interaction and collaboration by introducing structured icons to improve icon representation on previous emergency maps.[Method/process] This study designed the structured icon for crisis situations. Then a visual interaction and collaboration model based on the structured icon was designed.[Result/conclusion] Firstly, the pre-icon of structured icon can show the relationship of crisis events and improve the interactive experience of information search. Then, structured icon can dynamically represent the temporal and spatial attributes of crisis information, enhance information cognition and enhance decision makers' collaborative decision-making ability. In theory, this paper proposes an emergency information interaction model based on structured icon. It enriches the theory of emergency information visualization and emergency interaction. In practice, the research optimizes the design of icon-based emergency coordination system. It enhances interaction between participants and emergency information and helps decision makers to make accurate and timely decisions in collaboration.
Subjects: Library Science，Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] With the help of the information diffusion research method, this paper explores the evolution and diffusion rules of national culture in the social media hot events that integrate cultural content diffusion, so as to provide a new perspective for explaining the diffusion rules of national culture and promoting the diffusion of national culture. [Method/process] The text of "Dingzhen Event" published by weibo platform was taken as the data source. Based on the LDA theme model, national cultural symbol recognition and emotion analysis, an association network among the theme, national cultural symbol and emotional connection was constructed to restore the dynamic situation of ethnic cultural evolution and diffusion accompanied by the diffusion of different themes in hot events. By quantifying the influence of different users on the diffusion of national culture, the paper explored the relay process of national culture of different subjects in hot topics. [Result/conclusion] The results show that the analysis of the diffusion path rules of national culture in the context of social media from the two levels of the association network construction among the theme, national culture and emotional connection, and the influence of diffusion subjects can help humanists accurately grasp the details and dynamic interaction characteristics of cultural diffusion.
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