Search (5 results, page 1 of 1)

  • × author_ss:"Ding, Y."
  • × year_i:[2010 TO 2020}
  1. Song, M.; Kim, S.Y.; Zhang, G.; Ding, Y.; Chambers, T.: Productivity and influence in bioinformatics : a bibliometric analysis using PubMed central (2014) 0.02
    0.021378826 = product of:
      0.042757653 = sum of:
        0.042757653 = product of:
          0.085515305 = sum of:
            0.085515305 = weight(_text_:2007 in 1202) [ClassicSimilarity], result of:
              0.085515305 = score(doc=1202,freq=4.0), product of:
                0.20205033 = queryWeight, product of:
                  4.514535 = idf(docFreq=1315, maxDocs=44218)
                  0.044755515 = queryNorm
                0.42323765 = fieldWeight in 1202, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  4.514535 = idf(docFreq=1315, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1202)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Bioinformatics is a fast-growing field based on the optimal use of "big data" gathered in genomic, proteomics, and functional genomics research. In this paper, we conduct a comprehensive and in-depth bibliometric analysis of the field of bioinformatics by extracting citation data from PubMed Central full-text. Citation data for the period 2000 to 2011, comprising 20,869 papers with 546,245 citations, was used to evaluate the productivity and influence of this emerging field. Four measures were used to identify productivity; most productive authors, most productive countries, most productive organizations, and most popular subject terms. Research impact was analyzed based on the measures of most cited papers, most cited authors, emerging stars, and leading organizations. Results show the overall trends between the periods 2000 to 2003 and 2004 to 2007 were dissimilar, while trends between the periods 2004 to 2007 and 2008 to 2011 were similar. In addition, the field of bioinformatics has undergone a significant shift, co-evolving with other biomedical disciplines.
  2. Yan, E.; Ding, Y.: Weighted citation : an indicator of an article's prestige (2010) 0.02
    0.02015615 = product of:
      0.0403123 = sum of:
        0.0403123 = product of:
          0.0806246 = sum of:
            0.0806246 = weight(_text_:2007 in 3705) [ClassicSimilarity], result of:
              0.0806246 = score(doc=3705,freq=2.0), product of:
                0.20205033 = queryWeight, product of:
                  4.514535 = idf(docFreq=1315, maxDocs=44218)
                  0.044755515 = queryNorm
                0.39903226 = fieldWeight in 3705, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.514535 = idf(docFreq=1315, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3705)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    The authors propose using the technique of weighted citation to measure an article's prestige. The technique allocates a different weight to each reference by taking into account the impact of citing journals and citation time intervals. Weightedcitation captures prestige, whereas citation counts capture popularity. They compare the value variances for popularity and prestige for articles published in the Journal of the American Society for Information Science and Technology from 1998 to 2007, and find that the majority have comparable status.
  3. Milojevic, S.; Sugimoto, C.R.; Yan, E.; Ding, Y.: ¬The cognitive structure of Library and Information Science : analysis of article title words (2011) 0.01
    0.0125975935 = product of:
      0.025195187 = sum of:
        0.025195187 = product of:
          0.050390374 = sum of:
            0.050390374 = weight(_text_:2007 in 4608) [ClassicSimilarity], result of:
              0.050390374 = score(doc=4608,freq=2.0), product of:
                0.20205033 = queryWeight, product of:
                  4.514535 = idf(docFreq=1315, maxDocs=44218)
                  0.044755515 = queryNorm
                0.24939516 = fieldWeight in 4608, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.514535 = idf(docFreq=1315, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4608)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    This study comprises a suite of analyses of words in article titles in order to reveal the cognitive structure of Library and Information Science (LIS). The use of title words to elucidate the cognitive structure of LIS has been relatively neglected. The present study addresses this gap by performing (a) co-word analysis and hierarchical clustering, (b) multidimensional scaling, and (c) determination of trends in usage of terms. The study is based on 10,344 articles published between 1988 and 2007 in 16 LIS journals. Methodologically, novel aspects of this study are: (a) its large scale, (b) removal of non-specific title words based on the "word concentration" measure (c) identification of the most frequent terms that include both single words and phrases, and (d) presentation of the relative frequencies of terms using "heatmaps". Conceptually, our analysis reveals that LIS consists of three main branches: the traditionally recognized library-related and information-related branches, plus an equally distinct bibliometrics/scientometrics branch. The three branches focus on: libraries, information, and science, respectively. In addition, our study identifies substructures within each branch. We also tentatively identify "information seeking behavior" as a branch that is establishing itself separate from the three main branches. Furthermore, we find that cognitive concepts in LIS evolve continuously, with no stasis since 1992. The most rapid development occurred between 1998 and 2001, influenced by the increased focus on the Internet. The change in the cognitive landscape is found to be driven by the emergence of new information technologies, and the retirement of old ones.
  4. Ding, Y.: Applying weighted PageRank to author citation networks (2011) 0.01
    0.0106115695 = product of:
      0.021223139 = sum of:
        0.021223139 = product of:
          0.042446278 = sum of:
            0.042446278 = weight(_text_:22 in 4188) [ClassicSimilarity], result of:
              0.042446278 = score(doc=4188,freq=2.0), product of:
                0.15672618 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044755515 = queryNorm
                0.2708308 = fieldWeight in 4188, 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=4188)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 1.2011 13:02:21
  5. Ding, Y.; Zhang, G.; Chambers, T.; Song, M.; Wang, X.; Zhai, C.: Content-based citation analysis : the next generation of citation analysis (2014) 0.01
    0.009095631 = product of:
      0.018191261 = sum of:
        0.018191261 = product of:
          0.036382522 = sum of:
            0.036382522 = weight(_text_:22 in 1521) [ClassicSimilarity], result of:
              0.036382522 = score(doc=1521,freq=2.0), product of:
                0.15672618 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044755515 = queryNorm
                0.23214069 = fieldWeight in 1521, 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=1521)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 8.2014 16:52:04