Search (7 results, page 1 of 1)

  • × author_ss:"Li, J."
  1. Li, J.; Wu, G.: Characteristics of reference transactions : challenges to librarian's roles (1998) 0.06
    0.061061054 = product of:
      0.18318316 = sum of:
        0.18318316 = weight(_text_:reference in 3374) [ClassicSimilarity], result of:
          0.18318316 = score(doc=3374,freq=16.0), product of:
            0.205834 = queryWeight, product of:
              4.0683694 = idf(docFreq=2055, maxDocs=44218)
              0.050593734 = queryNorm
            0.8899558 = fieldWeight in 3374, product of:
              4.0 = tf(freq=16.0), with freq of:
                16.0 = termFreq=16.0
              4.0683694 = idf(docFreq=2055, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3374)
      0.33333334 = coord(1/3)
    
    Abstract
    Reports results of a study to analyze the nature of reference services and reference desk transactions. 2 reference librarians, one from South Alabama University, Biomedical Library and the other from the Shiffman Medical Library, Wayne State University, Michigan, recorded reference transactions while they staffed the reference desks at their respective institutions from May to October 1996. 2 types of data were collected; types of tools or sources used to provide answers to reference queries; and instruction provided, from the reference desk, on different types of application
  2. Zhu, Q.; Kong, X.; Hong, S.; Li, J.; He, Z.: Global ontology research progress : a bibliometric analysis (2015) 0.03
    0.031381153 = product of:
      0.09414345 = sum of:
        0.09414345 = sum of:
          0.045673028 = weight(_text_:database in 2590) [ClassicSimilarity], result of:
            0.045673028 = score(doc=2590,freq=2.0), product of:
              0.20452234 = queryWeight, product of:
                4.042444 = idf(docFreq=2109, maxDocs=44218)
                0.050593734 = queryNorm
              0.2233156 = fieldWeight in 2590, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.042444 = idf(docFreq=2109, maxDocs=44218)
                0.0390625 = fieldNorm(doc=2590)
          0.04847042 = weight(_text_:22 in 2590) [ClassicSimilarity], result of:
            0.04847042 = score(doc=2590,freq=4.0), product of:
              0.17717063 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.050593734 = queryNorm
              0.27358043 = fieldWeight in 2590, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.0390625 = fieldNorm(doc=2590)
      0.33333334 = coord(1/3)
    
    Abstract
    Purpose - The purpose of this paper is to analyse the global scientific outputs of ontology research, an important emerging discipline that has huge potential to improve information understanding, organization, and management. Design/methodology/approach - This study collected literature published during 1900-2012 from the Web of Science database. The bibliometric analysis was performed from authorial, institutional, national, spatiotemporal, and topical aspects. Basic statistical analysis, visualization of geographic distribution, co-word analysis, and a new index were applied to the selected data. Findings - Characteristics of publication outputs suggested that ontology research has entered into the soaring stage, along with increased participation and collaboration. The authors identified the leading authors, institutions, nations, and articles in ontology research. Authors were more from North America, Europe, and East Asia. The USA took the lead, while China grew fastest. Four major categories of frequently used keywords were identified: applications in Semantic Web, applications in bioinformatics, philosophy theories, and common supporting technology. Semantic Web research played a core role, and gene ontology study was well-developed. The study focus of ontology has shifted from philosophy to information science. Originality/value - This is the first study to quantify global research patterns and trends in ontology, which might provide a potential guide for the future research. The new index provides an alternative way to evaluate the multidisciplinary influence of researchers.
    Date
    20. 1.2015 18:30:22
    17. 9.2018 18:22:23
  3. Liu, X.; Bu, Y.; Li, M.; Li, J.: Monodisciplinary collaboration disrupts science more than multidisciplinary collaboration (2024) 0.01
    0.009134606 = product of:
      0.027403818 = sum of:
        0.027403818 = product of:
          0.054807637 = sum of:
            0.054807637 = weight(_text_:database in 1202) [ClassicSimilarity], result of:
              0.054807637 = score(doc=1202,freq=2.0), product of:
                0.20452234 = queryWeight, product of:
                  4.042444 = idf(docFreq=2109, maxDocs=44218)
                  0.050593734 = queryNorm
                0.26797873 = fieldWeight in 1202, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.042444 = idf(docFreq=2109, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1202)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Abstract
    Collaboration across disciplines is a critical form of scientific collaboration to solve complex problems and make innovative contributions. This study focuses on the association between multidisciplinary collaboration measured by coauthorship in publications and the disruption of publications measured by the Disruption (D) index. We used authors' affiliations as a proxy of the disciplines to which they belong and categorized an article into multidisciplinary collaboration or monodisciplinary collaboration. The D index quantifies the extent to which a study disrupts its predecessors. We selected 13 journals that publish articles in six disciplines from the Microsoft Academic Graph (MAG) database and then constructed regression models with fixed effects and estimated the relationship between the variables. The findings show that articles with monodisciplinary collaboration are more disruptive than those with multidisciplinary collaboration. Furthermore, we uncovered the mechanism of how monodisciplinary collaboration disrupts science more than multidisciplinary collaboration by exploring the references of the sampled publications.
  4. Lin, X.; Li, J.; Zhou, X.: Theme creation for digital collections (2008) 0.01
    0.007997211 = product of:
      0.023991633 = sum of:
        0.023991633 = product of:
          0.047983266 = sum of:
            0.047983266 = weight(_text_:22 in 2635) [ClassicSimilarity], result of:
              0.047983266 = score(doc=2635,freq=2.0), product of:
                0.17717063 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050593734 = queryNorm
                0.2708308 = fieldWeight in 2635, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2635)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Source
    Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas
  5. Li, J.; Willett, P.: ArticleRank : a PageRank-based alternative to numbers of citations for analysing citation networks (2009) 0.01
    0.0076121716 = product of:
      0.022836514 = sum of:
        0.022836514 = product of:
          0.045673028 = sum of:
            0.045673028 = weight(_text_:database in 751) [ClassicSimilarity], result of:
              0.045673028 = score(doc=751,freq=2.0), product of:
                0.20452234 = queryWeight, product of:
                  4.042444 = idf(docFreq=2109, maxDocs=44218)
                  0.050593734 = queryNorm
                0.2233156 = fieldWeight in 751, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.042444 = idf(docFreq=2109, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=751)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Abstract
    Purpose - The purpose of this paper is to suggest an alternative to the widely used Times Cited criterion for analysing citation networks. The approach involves taking account of the natures of the papers that cite a given paper, so as to differentiate between papers that attract the same number of citations. Design/methodology/approach - ArticleRank is an algorithm that has been derived from Google's PageRank algorithm to measure the influence of journal articles. ArticleRank is applied to two datasets - a citation network based on an early paper on webometrics, and a self-citation network based on the 19 most cited papers in the Journal of Documentation - using citation data taken from the Web of Knowledge database. Findings - ArticleRank values provide a different ranking of a set of papers from that provided by the corresponding Times Cited values, and overcomes the inability of the latter to differentiate between papers with the same numbers of citations. The difference in rankings between Times Cited and ArticleRank is greatest for the most heavily cited articles in a dataset. Originality/value - This is a novel application of the PageRank algorithm.
  6. Li, J.; Shi, D.: Sleeping beauties in genius work : when were they awakened? (2016) 0.01
    0.006854752 = product of:
      0.020564256 = sum of:
        0.020564256 = product of:
          0.041128512 = sum of:
            0.041128512 = weight(_text_:22 in 2647) [ClassicSimilarity], result of:
              0.041128512 = score(doc=2647,freq=2.0), product of:
                0.17717063 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050593734 = queryNorm
                0.23214069 = fieldWeight in 2647, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2647)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    22. 1.2016 14:13:32
  7. Zheng, R.; Li, J.; Chen, H.; Huang, Z.: ¬A framework for authorship identification of online messages : writing-style features and classification techniques (2006) 0.01
    0.005712294 = product of:
      0.017136881 = sum of:
        0.017136881 = product of:
          0.034273762 = sum of:
            0.034273762 = weight(_text_:22 in 5276) [ClassicSimilarity], result of:
              0.034273762 = score(doc=5276,freq=2.0), product of:
                0.17717063 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050593734 = queryNorm
                0.19345059 = fieldWeight in 5276, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5276)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    22. 7.2006 16:14:37