Document (#9106)

Author
Milman, B.L.
Title
Individual co-citation clusters as nuclei of complete and dynamic informetric models of scientific and technological areas
Source
Scientometrics. 31(1994) no.1, S.45-57
Year
1994
Abstract
Describes the construction of improved informetric models of individual scientific and technological areas on the basis of individual co citation clusters. The developed methodology of replenishment of research front with accidently absent papers describes the model more completely. Proposes the simple method of cluster 'dynamization' for the study of evolution of research area. The transition under consideration from co citation clusters to lexical maps of papers and patents enables the monitoring of the relationshuip between R and D in a given technological area. Provides the example from modern chemical engineering of Pressure-Swing Adsorption
Theme
Citation indexing
Informetrie

Similar documents (content)

  1. Shibata, N.; Kajikawa, Y.; Takeda, Y.; Matsushima, K.: Comparative study on methods of detecting research fronts using different types of citation (2009) 0.19
    0.19474298 = sum of:
      0.19474298 = product of:
        0.8114291 = sum of:
          0.033808433 = weight(abstract_txt:research in 3743) [ClassicSimilarity], result of:
            0.033808433 = score(doc=3743,freq=7.0), product of:
              0.06470925 = queryWeight, product of:
                1.0622416 = boost
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.019280288 = queryNorm
              0.5224667 = fieldWeight in 3743, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.0625 = fieldNorm(doc=3743)
          0.08043281 = weight(abstract_txt:cluster in 3743) [ClassicSimilarity], result of:
            0.08043281 = score(doc=3743,freq=2.0), product of:
              0.13896899 = queryWeight, product of:
                1.1007382 = boost
                6.548176 = idf(docFreq=172, maxDocs=44421)
                0.019280288 = queryNorm
              0.57878244 = fieldWeight in 3743, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.548176 = idf(docFreq=172, maxDocs=44421)
                0.0625 = fieldNorm(doc=3743)
          0.12755182 = weight(abstract_txt:front in 3743) [ClassicSimilarity], result of:
            0.12755182 = score(doc=3743,freq=3.0), product of:
              0.16509089 = queryWeight, product of:
                1.1997386 = boost
                7.1371193 = idf(docFreq=95, maxDocs=44421)
                0.019280288 = queryNorm
              0.7726158 = fieldWeight in 3743, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.1371193 = idf(docFreq=95, maxDocs=44421)
                0.0625 = fieldNorm(doc=3743)
          0.11827443 = weight(abstract_txt:papers in 3743) [ClassicSimilarity], result of:
            0.11827443 = score(doc=3743,freq=4.0), product of:
              0.1797034 = queryWeight, product of:
                1.7701833 = boost
                5.2653174 = idf(docFreq=623, maxDocs=44421)
                0.019280288 = queryNorm
              0.6581647 = fieldWeight in 3743, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.2653174 = idf(docFreq=623, maxDocs=44421)
                0.0625 = fieldNorm(doc=3743)
          0.21319929 = weight(abstract_txt:citation in 3743) [ClassicSimilarity], result of:
            0.21319929 = score(doc=3743,freq=9.0), product of:
              0.23251759 = queryWeight, product of:
                2.4661167 = boost
                4.890223 = idf(docFreq=907, maxDocs=44421)
                0.019280288 = queryNorm
              0.91691685 = fieldWeight in 3743, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                4.890223 = idf(docFreq=907, maxDocs=44421)
                0.0625 = fieldNorm(doc=3743)
          0.23816234 = weight(abstract_txt:clusters in 3743) [ClassicSimilarity], result of:
            0.23816234 = score(doc=3743,freq=2.0), product of:
              0.4132868 = queryWeight, product of:
                3.287846 = boost
                6.519684 = idf(docFreq=177, maxDocs=44421)
                0.019280288 = queryNorm
              0.5762641 = fieldWeight in 3743, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.519684 = idf(docFreq=177, maxDocs=44421)
                0.0625 = fieldNorm(doc=3743)
        0.24 = coord(6/25)
    
  2. Bar-Ilan, J.: Informetrics (2009) 0.18
    0.18332268 = sum of:
      0.18332268 = product of:
        0.76384455 = sum of:
          0.015972983 = weight(abstract_txt:research in 809) [ClassicSimilarity], result of:
            0.015972983 = score(doc=809,freq=1.0), product of:
              0.06470925 = queryWeight, product of:
                1.0622416 = boost
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.019280288 = queryNorm
              0.24684234 = fieldWeight in 809, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.078125 = fieldNorm(doc=809)
          0.104822814 = weight(abstract_txt:patents in 809) [ClassicSimilarity], result of:
            0.104822814 = score(doc=809,freq=1.0), product of:
              0.18002643 = queryWeight, product of:
                1.2528331 = boost
                7.4529724 = idf(docFreq=69, maxDocs=44421)
                0.019280288 = queryNorm
              0.58226347 = fieldWeight in 809, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.4529724 = idf(docFreq=69, maxDocs=44421)
                0.078125 = fieldNorm(doc=809)
          0.0503417 = weight(abstract_txt:scientific in 809) [ClassicSimilarity], result of:
            0.0503417 = score(doc=809,freq=1.0), product of:
              0.13910016 = queryWeight, product of:
                1.5574135 = boost
                4.6324444 = idf(docFreq=1174, maxDocs=44421)
                0.019280288 = queryNorm
              0.36190972 = fieldWeight in 809, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6324444 = idf(docFreq=1174, maxDocs=44421)
                0.078125 = fieldNorm(doc=809)
          0.073921524 = weight(abstract_txt:papers in 809) [ClassicSimilarity], result of:
            0.073921524 = score(doc=809,freq=1.0), product of:
              0.1797034 = queryWeight, product of:
                1.7701833 = boost
                5.2653174 = idf(docFreq=623, maxDocs=44421)
                0.019280288 = queryNorm
              0.41135293 = fieldWeight in 809, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2653174 = idf(docFreq=623, maxDocs=44421)
                0.078125 = fieldNorm(doc=809)
          0.17766607 = weight(abstract_txt:citation in 809) [ClassicSimilarity], result of:
            0.17766607 = score(doc=809,freq=4.0), product of:
              0.23251759 = queryWeight, product of:
                2.4661167 = boost
                4.890223 = idf(docFreq=907, maxDocs=44421)
                0.019280288 = queryNorm
              0.76409733 = fieldWeight in 809, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.890223 = idf(docFreq=907, maxDocs=44421)
                0.078125 = fieldNorm(doc=809)
          0.34111947 = weight(abstract_txt:informetric in 809) [ClassicSimilarity], result of:
            0.34111947 = score(doc=809,freq=2.0), product of:
              0.39533937 = queryWeight, product of:
                2.625579 = boost
                7.809647 = idf(docFreq=48, maxDocs=44421)
                0.019280288 = queryNorm
              0.8628523 = fieldWeight in 809, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.809647 = idf(docFreq=48, maxDocs=44421)
                0.078125 = fieldNorm(doc=809)
        0.24 = coord(6/25)
    
  3. Sebastian, Y.: Literature-based discovery by learning heterogeneous bibliographic information networks (2017) 0.17
    0.1683396 = sum of:
      0.1683396 = product of:
        0.60121286 = sum of:
          0.037083477 = weight(abstract_txt:research in 1536) [ClassicSimilarity], result of:
            0.037083477 = score(doc=1536,freq=11.0), product of:
              0.06470925 = queryWeight, product of:
                1.0622416 = boost
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.019280288 = queryNorm
              0.5730784 = fieldWeight in 1536, product of:
                3.3166249 = tf(freq=11.0), with freq of:
                  11.0 = termFreq=11.0
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1536)
          0.06982582 = weight(abstract_txt:lexical in 1536) [ClassicSimilarity], result of:
            0.06982582 = score(doc=1536,freq=2.0), product of:
              0.13824022 = queryWeight, product of:
                1.0978482 = boost
                6.5309834 = idf(docFreq=175, maxDocs=44421)
                0.019280288 = queryNorm
              0.50510496 = fieldWeight in 1536, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.5309834 = idf(docFreq=175, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1536)
          0.03523919 = weight(abstract_txt:scientific in 1536) [ClassicSimilarity], result of:
            0.03523919 = score(doc=1536,freq=1.0), product of:
              0.13910016 = queryWeight, product of:
                1.5574135 = boost
                4.6324444 = idf(docFreq=1174, maxDocs=44421)
                0.019280288 = queryNorm
              0.2533368 = fieldWeight in 1536, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6324444 = idf(docFreq=1174, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1536)
          0.040985476 = weight(abstract_txt:areas in 1536) [ClassicSimilarity], result of:
            0.040985476 = score(doc=1536,freq=1.0), product of:
              0.15383802 = queryWeight, product of:
                1.6378417 = boost
                4.871674 = idf(docFreq=924, maxDocs=44421)
                0.019280288 = queryNorm
              0.26641968 = fieldWeight in 1536, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.871674 = idf(docFreq=924, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1536)
          0.14635715 = weight(abstract_txt:papers in 1536) [ClassicSimilarity], result of:
            0.14635715 = score(doc=1536,freq=8.0), product of:
              0.1797034 = queryWeight, product of:
                1.7701833 = boost
                5.2653174 = idf(docFreq=623, maxDocs=44421)
                0.019280288 = queryNorm
              0.81443727 = fieldWeight in 1536, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                5.2653174 = idf(docFreq=623, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1536)
          0.124366246 = weight(abstract_txt:citation in 1536) [ClassicSimilarity], result of:
            0.124366246 = score(doc=1536,freq=4.0), product of:
              0.23251759 = queryWeight, product of:
                2.4661167 = boost
                4.890223 = idf(docFreq=907, maxDocs=44421)
                0.019280288 = queryNorm
              0.5348681 = fieldWeight in 1536, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.890223 = idf(docFreq=907, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1536)
          0.14735544 = weight(abstract_txt:clusters in 1536) [ClassicSimilarity], result of:
            0.14735544 = score(doc=1536,freq=1.0), product of:
              0.4132868 = queryWeight, product of:
                3.287846 = boost
                6.519684 = idf(docFreq=177, maxDocs=44421)
                0.019280288 = queryNorm
              0.3565452 = fieldWeight in 1536, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.519684 = idf(docFreq=177, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1536)
        0.28 = coord(7/25)
    
  4. Garechana, G.; Rio-Belver, R.; Cilleruelo, E.; Sarasola, J.L.: Clusterization and mapping of waste recycling science : evolution of research from 2002 to 2012 (2015) 0.16
    0.16102801 = sum of:
      0.16102801 = product of:
        0.57510006 = sum of:
          0.031300526 = weight(abstract_txt:research in 3042) [ClassicSimilarity], result of:
            0.031300526 = score(doc=3042,freq=6.0), product of:
              0.06470925 = queryWeight, product of:
                1.0622416 = boost
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.019280288 = queryNorm
              0.48371023 = fieldWeight in 3042, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.0625 = fieldNorm(doc=3042)
          0.056874584 = weight(abstract_txt:cluster in 3042) [ClassicSimilarity], result of:
            0.056874584 = score(doc=3042,freq=1.0), product of:
              0.13896899 = queryWeight, product of:
                1.1007382 = boost
                6.548176 = idf(docFreq=172, maxDocs=44421)
                0.019280288 = queryNorm
              0.409261 = fieldWeight in 3042, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.548176 = idf(docFreq=172, maxDocs=44421)
                0.0625 = fieldNorm(doc=3042)
          0.056955133 = weight(abstract_txt:scientific in 3042) [ClassicSimilarity], result of:
            0.056955133 = score(doc=3042,freq=2.0), product of:
              0.13910016 = queryWeight, product of:
                1.5574135 = boost
                4.6324444 = idf(docFreq=1174, maxDocs=44421)
                0.019280288 = queryNorm
              0.4094541 = fieldWeight in 3042, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.6324444 = idf(docFreq=1174, maxDocs=44421)
                0.0625 = fieldNorm(doc=3042)
          0.0811302 = weight(abstract_txt:areas in 3042) [ClassicSimilarity], result of:
            0.0811302 = score(doc=3042,freq=3.0), product of:
              0.15383802 = queryWeight, product of:
                1.6378417 = boost
                4.871674 = idf(docFreq=924, maxDocs=44421)
                0.019280288 = queryNorm
              0.52737415 = fieldWeight in 3042, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.871674 = idf(docFreq=924, maxDocs=44421)
                0.0625 = fieldNorm(doc=3042)
          0.051540043 = weight(abstract_txt:area in 3042) [ClassicSimilarity], result of:
            0.051540043 = score(doc=3042,freq=1.0), product of:
              0.1639629 = queryWeight, product of:
                1.6908803 = boost
                5.0294347 = idf(docFreq=789, maxDocs=44421)
                0.019280288 = queryNorm
              0.31433967 = fieldWeight in 3042, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0294347 = idf(docFreq=789, maxDocs=44421)
                0.0625 = fieldNorm(doc=3042)
          0.059137214 = weight(abstract_txt:papers in 3042) [ClassicSimilarity], result of:
            0.059137214 = score(doc=3042,freq=1.0), product of:
              0.1797034 = queryWeight, product of:
                1.7701833 = boost
                5.2653174 = idf(docFreq=623, maxDocs=44421)
                0.019280288 = queryNorm
              0.32908234 = fieldWeight in 3042, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2653174 = idf(docFreq=623, maxDocs=44421)
                0.0625 = fieldNorm(doc=3042)
          0.23816234 = weight(abstract_txt:clusters in 3042) [ClassicSimilarity], result of:
            0.23816234 = score(doc=3042,freq=2.0), product of:
              0.4132868 = queryWeight, product of:
                3.287846 = boost
                6.519684 = idf(docFreq=177, maxDocs=44421)
                0.019280288 = queryNorm
              0.5762641 = fieldWeight in 3042, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.519684 = idf(docFreq=177, maxDocs=44421)
                0.0625 = fieldNorm(doc=3042)
        0.28 = coord(7/25)
    
  5. Huang, M.-H.; Huang, W.-T.; Chang, C.-C.; Chen, D. Z.; Lin, C.-P.: The greater scattering phenomenon beyond Bradford's law in patent citation (2014) 0.15
    0.15455511 = sum of:
      0.15455511 = product of:
        0.64397967 = sum of:
          0.015972983 = weight(abstract_txt:research in 2352) [ClassicSimilarity], result of:
            0.015972983 = score(doc=2352,freq=1.0), product of:
              0.06470925 = queryWeight, product of:
                1.0622416 = boost
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.019280288 = queryNorm
              0.24684234 = fieldWeight in 2352, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.078125 = fieldNorm(doc=2352)
          0.18155843 = weight(abstract_txt:patents in 2352) [ClassicSimilarity], result of:
            0.18155843 = score(doc=2352,freq=3.0), product of:
              0.18002643 = queryWeight, product of:
                1.2528331 = boost
                7.4529724 = idf(docFreq=69, maxDocs=44421)
                0.019280288 = queryNorm
              1.0085099 = fieldWeight in 2352, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.4529724 = idf(docFreq=69, maxDocs=44421)
                0.078125 = fieldNorm(doc=2352)
          0.10141275 = weight(abstract_txt:areas in 2352) [ClassicSimilarity], result of:
            0.10141275 = score(doc=2352,freq=3.0), product of:
              0.15383802 = queryWeight, product of:
                1.6378417 = boost
                4.871674 = idf(docFreq=924, maxDocs=44421)
                0.019280288 = queryNorm
              0.6592177 = fieldWeight in 2352, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.871674 = idf(docFreq=924, maxDocs=44421)
                0.078125 = fieldNorm(doc=2352)
          0.06442505 = weight(abstract_txt:area in 2352) [ClassicSimilarity], result of:
            0.06442505 = score(doc=2352,freq=1.0), product of:
              0.1639629 = queryWeight, product of:
                1.6908803 = boost
                5.0294347 = idf(docFreq=789, maxDocs=44421)
                0.019280288 = queryNorm
              0.39292458 = fieldWeight in 2352, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0294347 = idf(docFreq=789, maxDocs=44421)
                0.078125 = fieldNorm(doc=2352)
          0.088833034 = weight(abstract_txt:citation in 2352) [ClassicSimilarity], result of:
            0.088833034 = score(doc=2352,freq=1.0), product of:
              0.23251759 = queryWeight, product of:
                2.4661167 = boost
                4.890223 = idf(docFreq=907, maxDocs=44421)
                0.019280288 = queryNorm
              0.38204867 = fieldWeight in 2352, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.890223 = idf(docFreq=907, maxDocs=44421)
                0.078125 = fieldNorm(doc=2352)
          0.19177744 = weight(abstract_txt:technological in 2352) [ClassicSimilarity], result of:
            0.19177744 = score(doc=2352,freq=2.0), product of:
              0.30826756 = queryWeight, product of:
                2.8395507 = boost
                5.6307297 = idf(docFreq=432, maxDocs=44421)
                0.019280288 = queryNorm
              0.6221136 = fieldWeight in 2352, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.6307297 = idf(docFreq=432, maxDocs=44421)
                0.078125 = fieldNorm(doc=2352)
        0.24 = coord(6/25)