In order to understand the process of knowledge diffusion, impact of network journals and their influencing factors, based on the theory of knowledge diffusion, this paper firstly discusses the influence factors of network periodicals in different media from the perspective of citation and communication and learning. Further, this paper selects 17 evaluation indicators in the five dimensions of citation network impact, downloading impact, search engine impact, website impact and Wechat Official Account impact, and builds a comprehensive evaluation system for network periodicals. Taking 6 network journals of library and information science collected by CSSCI as samples, this paper uses AHP method to conduct case studies. By analyzing the web characteristics and evaluation results of the sample periodicals, the results show that based on knowledge diffusion theory, a comprehensive evaluation system for network journals can be established; citation network and Wechat Official Account have the greatest impact on network journals' impact, the comprehensive impact score of library and information science journals is affected by different factors. Finally, this paper provides rational suggestions for improving the impact of network journals in Library and Information Science.%为了解网络期刊的知识扩散过程、影响力及其影响因素,本文首先以知识扩散理论为基础,从引文、传播和学习视角探讨网络期刊在不同媒介中传播的影响因素,从引文网络影响力、网络下载影响力、搜索引擎影响力、官方网站影响力、微信公众号影响力五个维度选取17种网络期刊评价指标,构建网络期刊综合评价指标体系.其次,以CSSCI收录的6种图书情报学网络期刊为样本,运用层次分析法进行实例研究,分析样本期刊的网络特征及评价结果,得出研究结论:可根据知识扩散理论,建立网络期刊综合评价指标体系;引文网络和微信公众号对网络期刊的影响最大;图书情报学领域不同网络期刊的影响力综合评分受不同因素的影响.最后,为提高图书情报学领域网络期刊的影响力提供合理化建议.
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