Subjects: Library Science，Information Science >> Library Science submitted time 2023-07-26 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] This paper creates a social media resource aggregation model based on user portraits, provides a reference for resource aggregation, and enriches and expands its theoretical research system.[Method/process] Based on the in-depth analysis of the connotation and algorithm of user portraits, and mapping relationship between them, the models of user portraits and resource portraits are constructed based on social media. The social media-based user portraits and resource portraits are studied by using the social labeling system method. Based on the domain ontology method, through the deep mining of data and the principle of resource aggregation, a social media internal resource aggregation model and an external resource aggregation model based on resource portraits are constructed.[Result/conclusion] In the era of big data, relevant theories and methods based on user portraits and resource portraits can provide new ideas for resource aggregation of social media.
Subjects: Library Science，Information Science >> Library Science submitted time 2023-07-26 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] With the rapid development of big data and artificial intelligence, the research of user portraits has quietly emerged. Reviewing and combing the research status has important theoretical and practical significance for promoting the long-term development of user portraits. [Method/process] Based on China Knowledge Network (CNKI) database, Emerald and Web of Science English database, the paper used Citespace, Vosviwer and other visualization tools to analyze quantitatively the current user image research in the library and information field, in terms of research institutions, cited journals, research hotspots and the density of hotspots, etc. The paper also used the mind map to elaborate on the research theme, research algorithms and techniques, model construction and the practice and application of user portraits of user portraits in the field of library and information at home and abroad. [Result/conclusion] As an emerging research tool, the research on user portraits in China is still weak, which has a large space for exploration. The future research of user portraits should focus on:broadening the research theme of user portraits, paying attention to the behavior analysis of user portraits and optimizing the research model of user portraits.
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