Subjects: Library Science，Information Science >> Library Science submitted time 2023-10-08 Cooperative journals: 《知识管理论坛》
Abstract： [Purpose/significance] Based on the review of half-life indexes in periodical evaluation at home and abroad, this paper finds that half-life indexes are mixed and misused in the process of being used. so, we analyze and explore these problems. [Method/process] Using the core journals’ index data of library and information science and economics as a sample, which come from the Statistical Database of International and Domestic Influences in China Academic Journals, we discussed the application rationality of half-life indexes in periodical evaluation though the visualization tools, correlation analysis and other statistical methods. [Results/conclusion] It has been found that half-life has some limitations in periodical evaluation. There is a great difference between historical and contemporary methods in reflecting the aging rate of literature. There are also some misunderstandings about the use of half-life indexes, According to these situations, this paper proposes some recommendations for half-life use.
Subjects: Library Science，Information Science >> Library Science submitted time 2023-08-27 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] Based on the statistical method, the paper explored the semantic retrieval technology based on word embedding expansion to enhance the semantic retrieval ability of academic resources.[Method/process] Using Natural Language Processing and text mining technology, the paper preprocessed the collected academic resources (mainly academic papers) metadata, combined the Word2vec word embedding generation tool and the elasticsearch full text retrieval engine to build semantic retrieval system, and explored the semantic retrieval of academic resources.[Result/conclusion] The method proposed in this paper can effectively improve the retrieval effect of academic information, and it realizes the semantic retrieval of academic resources to a certain extent, and could provide reference for further research on the follow-up semantic retrieval.
Subjects: Library Science，Information Science >> Library Science submitted time 2023-08-26 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] The verified users of microblog are more likely to become the opinion leaders, but researchers are likely to focus on the top-class verified users and there lacks studies about the mid-class verified users. This paper analyzes the mid-class verified users' propagation features and abilities in public opinion guidance, and provides some suggestions for administration. [Method/process] The Yixiao Luo incident is taken as an example. First, related microblogs are divided into several phases by time. Meanwhile the users are divided into several groups by their verified reasons. With these two steps, we can conduct a thorough research of users' propagation features from two different viewpoints. Then a matrix of verified users' basic attributes along with public opinion guidance ability which is based on sentiment analysis is built to evaluate the mid-class users' ability in public opinion guidance. [Result/conclusion] After researching, we find out the mid-class verified users have four significant features:their abilities in public opinions guidance are relatively strong, their opinions are more professional, they are comparatively rational and their followers are relatively homogeneous. With our findings, we propose some management suggestions for the mid-class verified users.
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 comprehensively combs the present situation of the digital practice of cultural heritage and long-term preservation of digital resources, and puts forward the relevant promotion strategies for the concrete problems existing in the practice of digital long-term preservation of cultural heritage, in order to achieve the cultural heritage digital resources in a wider range of transmission, and further improve its construction and service quality.[Method/process] This paper points out the need to achieve digital and long-term preservation of cultural heritage resources with the goal of development and utilization, and analyzes the project of Venice Time Machine in depth, which is the best case of international digitization long-term preservation and development and utilization. Based on this, the paper puts forward the long-term preservation strategy of our country cultural heritage digitization.[Result/conclusion] Based on the foreign excellent practical experience, this paper takes the development and utilization as the guidance, constructs the long-term preservation strategy of Chinese cultural heritage digitization from three aspects:resource coverage, technology integration and service mode.
Subjects: Library Science，Information Science >> Library Science submitted time 2023-07-26 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] Citation shows the link between citing articles and cited ones, which reflects the reference and affirmation of successors. Derived from the traditional keyword network, this paper has innovated keyword network based on citation context. The constructed knowledge map can not only reveal the deep information of the literature, but also reflect the knowledge-based process by which the readers actively select and utilize the literature. [Method/process] In this paper, digital humanity was established as the research field.Three literature sets and two citation text sets were collected to build two non-direction keyword-sharing networks and two directed keyword networks based on citation. The co-occurrence network showed the absorption and diffusion of the knowledge of digital humanities while the citation keyword network illustrated the formation and transformation of digital humanities. [Result/conclusion] After visualization of the constructed network, the research obtained core domain and core technology of digital humanities, which provided reference for the future research of digital humanities from the perspective of information recipients.
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