Search (31 results, page 1 of 2)

  • × theme_ss:"Retrievalalgorithmen"
  1. Yan, E.; Ding, Y.; Sugimoto, C.R.: P-Rank: an indicator measuring prestige in heterogeneous scholarly networks (2011) 0.04 
    0.036979202 = product of:
  0.073958404 = sum of:
    0.073958404 = product of:
      0.14791681 = sum of:
        0.14791681 = weight(_text_:journals in 4349) [ClassicSimilarity], result of:
          0.14791681 = score(doc=4349,freq=6.0), product of:
            0.25656942 = queryWeight, product of:
              5.021064 = idf(docFreq=792, maxDocs=44218)
              0.05109862 = queryNorm
            0.5765177 = fieldWeight in 4349, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              5.021064 = idf(docFreq=792, maxDocs=44218)
              0.046875 = fieldNorm(doc=4349)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Ranking scientific productivity and prestige are often limited to homogeneous networks. These networks are unable to account for the multiple factors that constitute the scholarly communication and reward system. This study proposes a new informetric indicator, P-Rank, for measuring prestige in heterogeneous scholarly networks containing articles, authors, and journals. P-Rank differentiates the weight of each citation based on its citing papers, citing journals, and citing authors. Articles from 16 representative library and information science journals are selected as the dataset. Principle Component Analysis is conducted to examine the relationship between P-Rank and other bibliometric indicators. We also compare the correlation and rank variances between citation counts and P-Rank scores. This work provides a new approach to examining prestige in scholarly communication networks in a more comprehensive and nuanced way.
  2. Abdelkareem, M.A.A.: In terms of publication index, what indicator is the best for researchers indexing, Google Scholar, Scopus, Clarivate or others? (2018) 0.04 
    0.035225622 = product of:
  0.070451245 = sum of:
    0.070451245 = product of:
      0.14090249 = sum of:
        0.14090249 = weight(_text_:journals in 4548) [ClassicSimilarity], result of:
          0.14090249 = score(doc=4548,freq=4.0), product of:
            0.25656942 = queryWeight, product of:
              5.021064 = idf(docFreq=792, maxDocs=44218)
              0.05109862 = queryNorm
            0.54917884 = fieldWeight in 4548, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.021064 = idf(docFreq=792, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4548)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    I believe that Google Scholar is the most popular academic indexing way for researchers and citations. However, some other indexing institutions may be more professional than Google Scholar but not as popular as Google Scholar. Other indexing websites like Scopus and Clarivate are providing more statistical figures for scholars, institutions or even journals. On account of publication citations, always Google Scholar shows higher citations for a paper than other indexing websites since Google Scholar consider most of the publication platforms so he can easily count the citations. While other databases just consider the citations come from those journals that are already indexed in their database
  3. Voorhees, E.M.: Implementing agglomerative hierarchic clustering algorithms for use in document retrieval (1986) 0.03 
    0.027692629 = product of:
  0.055385258 = sum of:
    0.055385258 = product of:
      0.110770516 = sum of:
        0.110770516 = weight(_text_:22 in 402) [ClassicSimilarity], result of:
          0.110770516 = score(doc=402,freq=2.0), product of:
            0.17893866 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05109862 = queryNorm
            0.61904186 = fieldWeight in 402, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.125 = fieldNorm(doc=402)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Information processing and management. 22(1986) no.6, S.465-476
  4. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.02 
    0.02423105 = product of:
  0.0484621 = sum of:
    0.0484621 = product of:
      0.0969242 = sum of:
        0.0969242 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
          0.0969242 = score(doc=2134,freq=2.0), product of:
            0.17893866 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05109862 = queryNorm
            0.5416616 = fieldWeight in 2134, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=2134)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    30. 3.2001 13:32:22
  5. Back, J.: ¬An evaluation of relevancy ranking techniques used by Internet search engines (2000) 0.02 
    0.02423105 = product of:
  0.0484621 = sum of:
    0.0484621 = product of:
      0.0969242 = sum of:
        0.0969242 = weight(_text_:22 in 3445) [ClassicSimilarity], result of:
          0.0969242 = score(doc=3445,freq=2.0), product of:
            0.17893866 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05109862 = queryNorm
            0.5416616 = fieldWeight in 3445, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=3445)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    25. 8.2005 17:42:22
  6. Fuhr, N.: Ranking-Experimente mit gewichteter Indexierung (1986) 0.02 
    0.020769471 = product of:
  0.041538943 = sum of:
    0.041538943 = product of:
      0.083077885 = sum of:
        0.083077885 = weight(_text_:22 in 58) [ClassicSimilarity], result of:
          0.083077885 = score(doc=58,freq=2.0), product of:
            0.17893866 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05109862 = queryNorm
            0.46428138 = fieldWeight in 58, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.09375 = fieldNorm(doc=58)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    14. 6.2015 22:12:44
  7. Fuhr, N.: Rankingexperimente mit gewichteter Indexierung (1986) 0.02 
    0.020769471 = product of:
  0.041538943 = sum of:
    0.041538943 = product of:
      0.083077885 = sum of:
        0.083077885 = weight(_text_:22 in 2051) [ClassicSimilarity], result of:
          0.083077885 = score(doc=2051,freq=2.0), product of:
            0.17893866 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05109862 = queryNorm
            0.46428138 = fieldWeight in 2051, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.09375 = fieldNorm(doc=2051)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    14. 6.2015 22:12:56
  8. MacFarlane, A.; Robertson, S.E.; McCann, J.A.: Parallel computing for passage retrieval (2004) 0.01 
    0.0138463145 = product of:
  0.027692629 = sum of:
    0.027692629 = product of:
      0.055385258 = sum of:
        0.055385258 = weight(_text_:22 in 5108) [ClassicSimilarity], result of:
          0.055385258 = score(doc=5108,freq=2.0), product of:
            0.17893866 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05109862 = queryNorm
            0.30952093 = fieldWeight in 5108, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=5108)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    20. 1.2007 18:30:22
  9. Faloutsos, C.: Signature files (1992) 0.01 
    0.0138463145 = product of:
  0.027692629 = sum of:
    0.027692629 = product of:
      0.055385258 = sum of:
        0.055385258 = weight(_text_:22 in 3499) [ClassicSimilarity], result of:
          0.055385258 = score(doc=3499,freq=2.0), product of:
            0.17893866 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05109862 = queryNorm
            0.30952093 = fieldWeight in 3499, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=3499)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    7. 5.1999 15:22:48
  10. Losada, D.E.; Barreiro, A.: Emebedding term similarity and inverse document frequency into a logical model of information retrieval (2003) 0.01 
    0.0138463145 = product of:
  0.027692629 = sum of:
    0.027692629 = product of:
      0.055385258 = sum of:
        0.055385258 = weight(_text_:22 in 1422) [ClassicSimilarity], result of:
          0.055385258 = score(doc=1422,freq=2.0), product of:
            0.17893866 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05109862 = queryNorm
            0.30952093 = fieldWeight in 1422, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=1422)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 3.2003 19:27:23
  11. Bornmann, L.; Mutz, R.: From P100 to P100' : a new citation-rank approach (2014) 0.01 
    0.0138463145 = product of:
  0.027692629 = sum of:
    0.027692629 = product of:
      0.055385258 = sum of:
        0.055385258 = weight(_text_:22 in 1431) [ClassicSimilarity], result of:
          0.055385258 = score(doc=1431,freq=2.0), product of:
            0.17893866 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05109862 = queryNorm
            0.30952093 = fieldWeight in 1431, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=1431)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 8.2014 17:05:18
  12. Tober, M.; Hennig, L.; Furch, D.: SEO Ranking-Faktoren und Rang-Korrelationen 2014 : Google Deutschland (2014) 0.01 
    0.0138463145 = product of:
  0.027692629 = sum of:
    0.027692629 = product of:
      0.055385258 = sum of:
        0.055385258 = weight(_text_:22 in 1484) [ClassicSimilarity], result of:
          0.055385258 = score(doc=1484,freq=2.0), product of:
            0.17893866 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05109862 = queryNorm
            0.30952093 = fieldWeight in 1484, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=1484)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    13. 9.2014 14:45:22
  13. Ravana, S.D.; Rajagopal, P.; Balakrishnan, V.: Ranking retrieval systems using pseudo relevance judgments (2015) 0.01 
    0.012238529 = product of:
  0.024477057 = sum of:
    0.024477057 = product of:
      0.048954114 = sum of:
        0.048954114 = weight(_text_:22 in 2591) [ClassicSimilarity], result of:
          0.048954114 = score(doc=2591,freq=4.0), product of:
            0.17893866 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05109862 = queryNorm
            0.27358043 = fieldWeight in 2591, 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=2591)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    20. 1.2015 18:30:22
    18. 9.2018 18:22:56
  14. Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998) 0.01 
    0.012115525 = product of:
  0.02423105 = sum of:
    0.02423105 = product of:
      0.0484621 = sum of:
        0.0484621 = weight(_text_:22 in 1319) [ClassicSimilarity], result of:
          0.0484621 = score(doc=1319,freq=2.0), product of:
            0.17893866 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05109862 = queryNorm
            0.2708308 = fieldWeight in 1319, 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=1319)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    1. 8.1996 22:08:06
  15. Kanaeva, Z.: Ranking: Google und CiteSeer (2005) 0.01 
    0.012115525 = product of:
  0.02423105 = sum of:
    0.02423105 = product of:
      0.0484621 = sum of:
        0.0484621 = weight(_text_:22 in 3276) [ClassicSimilarity], result of:
          0.0484621 = score(doc=3276,freq=2.0), product of:
            0.17893866 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05109862 = queryNorm
            0.2708308 = fieldWeight in 3276, 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=3276)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    20. 3.2005 16:23:22
  16. Joss, M.W.; Wszola, S.: ¬The engines that can : text search and retrieval software, their strategies, and vendors (1996) 0.01 
    0.010384736 = product of:
  0.020769471 = sum of:
    0.020769471 = product of:
      0.041538943 = sum of:
        0.041538943 = weight(_text_:22 in 5123) [ClassicSimilarity], result of:
          0.041538943 = score(doc=5123,freq=2.0), product of:
            0.17893866 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05109862 = queryNorm
            0.23214069 = fieldWeight in 5123, 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=5123)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    12. 9.1996 13:56:22
  17. Kelledy, F.; Smeaton, A.F.: Signature files and beyond (1996) 0.01 
    0.010384736 = product of:
  0.020769471 = sum of:
    0.020769471 = product of:
      0.041538943 = sum of:
        0.041538943 = weight(_text_:22 in 6973) [ClassicSimilarity], result of:
          0.041538943 = score(doc=6973,freq=2.0), product of:
            0.17893866 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05109862 = queryNorm
            0.23214069 = fieldWeight in 6973, 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=6973)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon
  18. Crestani, F.; Dominich, S.; Lalmas, M.; Rijsbergen, C.J.K. van: Mathematical, logical, and formal methods in information retrieval : an introduction to the special issue (2003) 0.01 
    0.010384736 = product of:
  0.020769471 = sum of:
    0.020769471 = product of:
      0.041538943 = sum of:
        0.041538943 = weight(_text_:22 in 1451) [ClassicSimilarity], result of:
          0.041538943 = score(doc=1451,freq=2.0), product of:
            0.17893866 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05109862 = queryNorm
            0.23214069 = fieldWeight in 1451, 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=1451)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 3.2003 19:27:36
  19. Fan, W.; Fox, E.A.; Pathak, P.; Wu, H.: ¬The effects of fitness functions an genetic programming-based ranking discovery for Web search (2004) 0.01 
    0.010384736 = product of:
  0.020769471 = sum of:
    0.020769471 = product of:
      0.041538943 = sum of:
        0.041538943 = weight(_text_:22 in 2239) [ClassicSimilarity], result of:
          0.041538943 = score(doc=2239,freq=2.0), product of:
            0.17893866 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05109862 = queryNorm
            0.23214069 = fieldWeight in 2239, 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=2239)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    31. 5.2004 19:22:06
  20. Furner, J.: ¬A unifying model of document relatedness for hybrid search engines (2003) 0.01 
    0.010384736 = product of:
  0.020769471 = sum of:
    0.020769471 = product of:
      0.041538943 = sum of:
        0.041538943 = weight(_text_:22 in 2717) [ClassicSimilarity], result of:
          0.041538943 = score(doc=2717,freq=2.0), product of:
            0.17893866 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05109862 = queryNorm
            0.23214069 = fieldWeight in 2717, 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=2717)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    11. 9.2004 17:32:22

Authors

Years

Languages

  • e 27
  • d 4

Types

  • a 28
  • el 1
  • m 1
  • r 1
  • More… Less…

Themes

Subjects

Classifications