Subjects: Library Science,Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》
Abstract: [Purpose/significance] This paper constructs an evaluation model of short video transmission effect, and provides a theoretical basis for subsequent empirical evaluation of short video communication effect.[Method/process] This paper analyzed users from a multi-dimensional perspective, took short-video user-generated content as the starting point, extend to user preferences based on comprehensive information emotional theory, and integrated with content features based on super IP theory. It used literature review and Delphi analysis to summarize the factors affecting short-term frequency communication effect, and used fuzzy set theory DEMATEL model to screen the key influencing factors of the secondary indicators, and a communication effect evaluation model and evaluation index system were constructed.[Result/conclusion] Eleven key influencing factors of short video communication effect were determined, of which the official certification was the most critical factor,the short video communication effect evaluation model and evaluation index system thus constructed provided a certain degree of decision support for the research of short video propagation effects.
Subjects: Library Science,Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》
Abstract: [Purpose/significance] This paper combs Mr.Jing Jipeng's academic thought again, outlines the general picture of his academic thought building, and makes future generations fully understand the essence of his information ecology thought.[Method/process] Through the collection and study of Mr. Jing Jipeng's works and relevant high-level academic papers published in the field of information ecology, as well as the interview with Mr. Jing, Mr. Jing's information ecology thought was divided into 4 stages:the accumulation of ecology thought, the initial establishment of information ecology thought, the formation of information ecology theory system and the development of information ecology thought in depth.[Result/conclusion] From two aspects of theory system and education system, this paper summarizes Mr. Jing's contribution to the information ecology thought, and summarizes four main characteristics of his information ecology thought:innovation, foresight, epochal and sustainable development. Mr. Jing's information ecology thought enriches the information science education system and promotes the development of information science education in China.
Subjects: Library Science,Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》
Abstract: [Purpose/significance] Taking online social network as the research object, and through the literature combing to accurately capture the development trend and research hotspots of community discovery, and exploring how to mine hidden communities in large-scale social networks, which has theoretical and practical significance. [Method/process] Using CNKI database, Web of Science core collection and related international conference documents as data sources. The CiteSpace visual analysis tool was used to quantitatively study hotspot keywords, topic evolution paths and co-cited documents. And the topic research content was reviewed from 3 dimensions:community discovery method, algorithm implementation and application practice. [Result/conclusion] There is still much room for development in the current research field. In the future, we should pay attention to optimization and innovation of algorithms, differentiation and expansion of application scenarios, and cross-disciplinary research on interdisciplinary knowledge and cutting-edge technology methods.
Subjects: Library Science,Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》
Abstract: [Purpose/significance] To improve the quality of knowledge aggregation in healthy virtual communities and provide technical method support for virtual healthy community services. [Method/process] The method of spectral clustering was applied to knowledge in the virtual healthy community was extracted, and the semantic similarity matrix of the text was obtained by using the keyword co-occurrence. The spectral clustering was performed according to the text semantic similarity matrix, and the text was aggregated into text clusters. [Result/conclusion] The information published by the doctor’s online health consultation platform was used as a data source for method validation. The results show that when the number of clusters is 5, the proposed method has the highest score. This method of spectral clustering considers the semantic relationship between words, fully exploits the potential information of virtual healthy community, improves the quality of knowledge aggregation, and provides a new way for knowledge aggregation and knowledge service.