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2021 Vol. 40, No. 10
Published: 2021-10-24 |
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1015 |
Research on Text Matching Model Based on Deep Interaction Hot! |
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Yu Chuanming, Xue Haodong, Jiang Yifan |
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DOI: 10.3772/j.issn.1000-0135.2021.10.001 |
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For the application of text matching in information retrieval, text mining, and other research fields, a deep interactive text matching (DITM) model with good generalization ability is proposed. Based on the matching-aggregation framework, the encoder layer, co-attention layer, and fusion layer are used as an interaction module. The interaction process is iterated multiple times to obtain the in-depth interaction information. Finally, information is extracted through multi-perspective pooling to predict the relationship between text pairs. Compared with baseline methods, the proposed approach has achieved best results on four text matching tasks, namely opinion retrieval, answer selection, paraphrase identification, and natural language inference. The experimental results are of great significance to promote the practice of text matching models in the field of information. |
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2021 Vol. 40 (10): 1015-1026
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1065 |
How Citation Dynamics Change: The Effect of Literature Content Characteristics Hot! |
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Li Lingying, Min Chao, Yan Xiaoran |
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DOI: 10.3772/j.issn.1000-0135.2021.10.005 |
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The citation performance of an article is determined by its internal characteristics and external environment. This study focuses on literature characteristics, such as research quality, innovation level, and content diversity. Citation peak is the most influential stage in the process of citation; hence, apart from traditional citation counts, we also explored the impact of literature characteristics on citation peak. We conducted four regression models on biomedical literature in PubMed, in which the dependent variables were total citation numbers, peak counts, peak arrival time, and peak height. Research quality was measured by a peer review database, Faculty Opinions (F1000), and the innovation level were determined by experts in F1000. Content diversity was expressed by the distance of MeSH terms. The study results indicate that research quality, innovation level, and content diversity contribute to total citation numbers. Diversity can promote article gain more citation peaks. Peak arrival time is significantly influenced by research quality and content diversity. Research quality can decrease peak height, which makes citation curve smoother. |
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2021 Vol. 40 (10): 1065-1078
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1079 |
Distribution Features of Facebook Altmetrics of Scholarly Outputs Hot! |
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Yu Houqiang, Zhang Wei, Cao Xueting |
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DOI: 10.3772/j.issn.1000-0135.2021.10.006 |
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In this paper, a statistical analysis of more than 420,000 Facebook altmetrics from July 2018 to June 2019 and a preliminary exploration of their numerical distribution characteristics were conducted. The study found that the relative coverage rate of Facebook altmetrics is 8.1%, indicating a relatively low level. The immediacy rate of Facebook altmetrics is 74%, which is better than News, Twitter, Weibo, and Policy document altmetrics, which instructs Facebook users to pay more attention to the latest achievements. The distribution of academic publications is relatively even: as based on the number of independent users, 20% of academic publications are mentioned by only 37% of Facebook altmetrics. The distribution of academic sources is in accordance with Bradford's Law, and 140 core sources are calculated, of which the core sources are The Conservation, Nature, and Science. As for the discipline-level distribution of Facebook altmetrics, medical and health sciences is in the dominant position, reaching as high as 61%, and biological science, psychology, and cognitive science also receive relatively high mentions. These conclusions will provide a reference for the further application of Facebook altmetrics. |
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2021 Vol. 40 (10): 1079-1091
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1118 |
Review of Application Research on Network Analysis in Informetrics Hot! |
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Wu Jiang, Wang Kaili, Dong Ke, Yang Yujie, Yi Mengxin |
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DOI: 10.3772/j.issn.1000-0135.2021.10.009 |
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There are several important achievements of network analysis research under informetrics, and interested researches have reached the adjustment stage for the innovation at present. Summarizing the current relevant research can provide a reference for the sustainable development of this field. Starting from the development of network analysis application in informetrics, this study puts forward the research framework and discusses the essence of network analysis; subsequently, the study separately reviews the existing application researches from the macro, medium, and micro levels. Finally, possible future research directions in different dimensions are described. |
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2021 Vol. 40 (10): 1118-1128
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