Search (5 results, page 1 of 1)

  • × author_ss:"Ding, Y."
  1. Ding, Y.: Visualization of intellectual structure in information retrieval : author cocitation analysis (1998) 0.01 
    0.011659914 = product of:
  0.058299568 = sum of:
    0.058299568 = weight(_text_:40 in 2792) [ClassicSimilarity], result of:
      0.058299568 = score(doc=2792,freq=2.0), product of:
        0.19765252 = queryWeight, product of:
          3.813818 = idf(docFreq=2651, maxDocs=44218)
          0.051825367 = queryNorm
        0.2949599 = fieldWeight in 2792, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.813818 = idf(docFreq=2651, maxDocs=44218)
          0.0546875 = fieldNorm(doc=2792)
  0.2 = coord(1/5)
    Abstract
    Reports results of a cocitation analysis study from the international retrieval research field from 1987 to 1997. Data was taken from Social SciSearch, via Dialog, and the top 40 authors were submitted to author cocitation analysis to yield the intellectual structure of information retrieval. The resulting multidimensional scaling map revealed: identifiable author groups for information retrieval; location of these groups with respect to each other; extend of centrality and peripherality of authors within groups, proximities of authors within groups and across group boundaries; and the meaning of the axes of the map. Factor analysis was used to reveal the extent of the authors' research areas and statistical routines included: ALSCAL; clustering analysis and factor analysis
  2. Song, M.; Kim, S.Y.; Zhang, G.; Ding, Y.; Chambers, T.: Productivity and influence in bioinformatics : a bibliometric analysis using PubMed central (2014) 0.01 
    0.009994212 = product of:
  0.04997106 = sum of:
    0.04997106 = weight(_text_:40 in 1202) [ClassicSimilarity], result of:
      0.04997106 = score(doc=1202,freq=2.0), product of:
        0.19765252 = queryWeight, product of:
          3.813818 = idf(docFreq=2651, maxDocs=44218)
          0.051825367 = queryNorm
        0.2528228 = fieldWeight in 1202, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.813818 = idf(docFreq=2651, maxDocs=44218)
          0.046875 = fieldNorm(doc=1202)
  0.2 = coord(1/5)
    Date
    29. 1.2014 16:40:41
  3. Ding, Y.: Applying weighted PageRank to author citation networks (2011) 0.01 
    0.009830271 = product of:
  0.049151354 = sum of:
    0.049151354 = weight(_text_:22 in 4188) [ClassicSimilarity], result of:
      0.049151354 = score(doc=4188,freq=2.0), product of:
        0.18148361 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.051825367 = 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)
  0.2 = coord(1/5)
    Date
    22. 1.2011 13:02:21
  4. 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 
    0.008425946 = product of:
  0.04212973 = sum of:
    0.04212973 = weight(_text_:22 in 1521) [ClassicSimilarity], result of:
      0.04212973 = score(doc=1521,freq=2.0), product of:
        0.18148361 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.051825367 = 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)
  0.2 = coord(1/5)
    Date
    22. 8.2014 16:52:04
  5. Li, D.; Wang, Y.; Madden, A.; Ding, Y.; Sun, G.G.; Zhang, N.; Zhou, E.: Analyzing stock market trends using social media user moods and social influence (2019) 0.01 
    0.00832851 = product of:
  0.04164255 = sum of:
    0.04164255 = weight(_text_:40 in 5362) [ClassicSimilarity], result of:
      0.04164255 = score(doc=5362,freq=2.0), product of:
        0.19765252 = queryWeight, product of:
          3.813818 = idf(docFreq=2651, maxDocs=44218)
          0.051825367 = queryNorm
        0.21068566 = fieldWeight in 5362, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.813818 = idf(docFreq=2651, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5362)
  0.2 = coord(1/5)
    Date
    6. 8.2019 12:48:40

Authors

Years

Themes