Search (32 results, page 1 of 2)

  • × author_ss:"Bar-Ilan, J."
  1. Bronstein, J.; Gazit, T.; Perez, O.; Bar-Ilan, J.; Aharony, N.; Amichai-Hamburger, Y.: ¬An examination of the factors contributing to participation in online social platforms (2016) 0.01
    0.014004571 = product of:
      0.028009143 = sum of:
        0.028009143 = sum of:
          0.0024625852 = weight(_text_:s in 3364) [ClassicSimilarity], result of:
            0.0024625852 = score(doc=3364,freq=2.0), product of:
              0.04100075 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.03771094 = queryNorm
              0.060061958 = fieldWeight in 3364, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.0390625 = fieldNorm(doc=3364)
          0.025546558 = weight(_text_:22 in 3364) [ClassicSimilarity], result of:
            0.025546558 = score(doc=3364,freq=2.0), product of:
              0.13205728 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.03771094 = queryNorm
              0.19345059 = fieldWeight in 3364, 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=3364)
      0.5 = coord(1/2)
    
    Date
    20. 1.2015 18:30:22
    Source
    Aslib journal of information management. 68(2016) no.6, S.793-818
  2. Zhitomirsky-Geffet, M.; Bar-Ilan, J.: Towards maximal unification of semantically diverse ontologies for controversial domains (2014) 0.01
    0.011203657 = product of:
      0.022407314 = sum of:
        0.022407314 = sum of:
          0.0019700683 = weight(_text_:s in 1634) [ClassicSimilarity], result of:
            0.0019700683 = score(doc=1634,freq=2.0), product of:
              0.04100075 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.03771094 = queryNorm
              0.048049565 = fieldWeight in 1634, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.03125 = fieldNorm(doc=1634)
          0.020437246 = weight(_text_:22 in 1634) [ClassicSimilarity], result of:
            0.020437246 = score(doc=1634,freq=2.0), product of:
              0.13205728 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.03771094 = queryNorm
              0.15476047 = fieldWeight in 1634, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.03125 = fieldNorm(doc=1634)
      0.5 = coord(1/2)
    
    Date
    20. 1.2015 18:30:22
    Source
    Aslib journal of information management. 66(2014) no.5, S.494-518
  3. Zhitomirsky-Geffet, M.; Bar-Ilan, J.; Levene, M.: Testing the stability of "wisdom of crowds" judgments of search results over time and their similarity with the search engine rankings (2016) 0.01
    0.011203657 = product of:
      0.022407314 = sum of:
        0.022407314 = sum of:
          0.0019700683 = weight(_text_:s in 3071) [ClassicSimilarity], result of:
            0.0019700683 = score(doc=3071,freq=2.0), product of:
              0.04100075 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.03771094 = queryNorm
              0.048049565 = fieldWeight in 3071, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.03125 = fieldNorm(doc=3071)
          0.020437246 = weight(_text_:22 in 3071) [ClassicSimilarity], result of:
            0.020437246 = score(doc=3071,freq=2.0), product of:
              0.13205728 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.03771094 = queryNorm
              0.15476047 = fieldWeight in 3071, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.03125 = fieldNorm(doc=3071)
      0.5 = coord(1/2)
    
    Date
    20. 1.2015 18:30:22
    Source
    Aslib journal of information management. 68(2016) no.4, S.407-427
  4. Bar-Ilan, J.: Information hub blogs (2005) 0.00
    0.0019700683 = product of:
      0.0039401366 = sum of:
        0.0039401366 = product of:
          0.007880273 = sum of:
            0.007880273 = weight(_text_:s in 193) [ClassicSimilarity], result of:
              0.007880273 = score(doc=193,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = queryNorm
                0.19219826 = fieldWeight in 193, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.125 = fieldNorm(doc=193)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of information science. 31(2005) no.4, S.297-307
  5. Bar-Ilan, J.; Gutman,T.: How do search engines respond to some non-English queries? (2005) 0.00
    0.0017238096 = product of:
      0.0034476193 = sum of:
        0.0034476193 = product of:
          0.0068952385 = sum of:
            0.0068952385 = weight(_text_:s in 4653) [ClassicSimilarity], result of:
              0.0068952385 = score(doc=4653,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = queryNorm
                0.16817348 = fieldWeight in 4653, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.109375 = fieldNorm(doc=4653)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of information science. 31(2005) no.1, S.13-
  6. Lazinger, S.S.; Peritz, B.C.; Bar-Ilan, J.: Using a local area network as an interface to wide area networks in library and information science education (1993) 0.00
    0.0014775512 = product of:
      0.0029551024 = sum of:
        0.0029551024 = product of:
          0.0059102047 = sum of:
            0.0059102047 = weight(_text_:s in 7125) [ClassicSimilarity], result of:
              0.0059102047 = score(doc=7125,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = queryNorm
                0.14414869 = fieldWeight in 7125, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.09375 = fieldNorm(doc=7125)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Pages
    S.651-660
  7. Bar-Ilan, J.; Levene, M.: ¬The hw-rank : an h-index variant for ranking web pages (2015) 0.00
    0.0012312926 = product of:
      0.0024625852 = sum of:
        0.0024625852 = product of:
          0.0049251704 = sum of:
            0.0049251704 = weight(_text_:s in 1694) [ClassicSimilarity], result of:
              0.0049251704 = score(doc=1694,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = queryNorm
                0.120123915 = fieldWeight in 1694, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.078125 = fieldNorm(doc=1694)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Scientometrics. 102(2015) no.3, S.2247-2253
  8. Bar-Ilan, J.: Methods for measuring search engine performance over time (2002) 0.00
    9.850342E-4 = product of:
      0.0019700683 = sum of:
        0.0019700683 = product of:
          0.0039401366 = sum of:
            0.0039401366 = weight(_text_:s in 305) [ClassicSimilarity], result of:
              0.0039401366 = score(doc=305,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = queryNorm
                0.09609913 = fieldWeight in 305, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.0625 = fieldNorm(doc=305)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science and technology. 53(2002) no.4, S.308-319
  9. Bar-Ilan, J.; Keenoy, K.; Yaari, E.; Levene, M.: User rankings of search engine results (2007) 0.00
    8.7065535E-4 = product of:
      0.0017413107 = sum of:
        0.0017413107 = product of:
          0.0034826214 = sum of:
            0.0034826214 = weight(_text_:s in 470) [ClassicSimilarity], result of:
              0.0034826214 = score(doc=470,freq=4.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = queryNorm
                0.08494043 = fieldWeight in 470, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=470)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    In this study, we investigate the similarities and differences between rankings of search results by users and search engines. Sixty-seven students took part in a 3-week-long experiment, during which they were asked to identify and rank the top 10 documents from the set of URLs that were retrieved by three major search engines (Google, MSN Search, and Yahoo!) for 12 selected queries. The URLs and accompanying snippets were displayed in random order, without disclosing which search engine(s) retrieved any specific URL for the query. We computed the similarity of the rankings of the users and search engines using four nonparametric correlation measures in [0,1] that complement each other. The findings show that the similarities between the users' choices and the rankings of the search engines are low. We examined the effects of the presentation order of the results, and of the thinking styles of the participants. Presentation order influences the rankings, but overall the results indicate that there is no "average user," and even if the users have the same basic knowledge of a topic, they evaluate information in their own context, which is influenced by cognitive, affective, and physical factors. This is the first large-scale experiment in which users were asked to rank the results of identical queries. The analysis of the experimental results demonstrates the potential for personalized search.
    Source
    Journal of the American Society for Information Science and Technology. 58(2007) no.9, S.1254-1266
  10. Bar-Ilan, J.; Zhitomirsky-Geffet, M.; Miller, Y.; Shoham, S.: ¬The effects of background information and social interaction on image tagging (2010) 0.00
    8.7065535E-4 = product of:
      0.0017413107 = sum of:
        0.0017413107 = product of:
          0.0034826214 = sum of:
            0.0034826214 = weight(_text_:s in 3453) [ClassicSimilarity], result of:
              0.0034826214 = score(doc=3453,freq=4.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = queryNorm
                0.08494043 = fieldWeight in 3453, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3453)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science and Technology. 61(2010) no.5, S.940-951
  11. Shema, H.; Bar-Ilan, J.; Thelwall, M.: How is research blogged? : A content analysis approach (2015) 0.00
    8.7065535E-4 = product of:
      0.0017413107 = sum of:
        0.0017413107 = product of:
          0.0034826214 = sum of:
            0.0034826214 = weight(_text_:s in 1863) [ClassicSimilarity], result of:
              0.0034826214 = score(doc=1863,freq=4.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = queryNorm
                0.08494043 = fieldWeight in 1863, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1863)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Blogs that cite academic articles have emerged as a potential source of alternative impact metrics for the visibility of the blogged articles. Nevertheless, to evaluate more fully the value of blog citations, it is necessary to investigate whether research blogs focus on particular types of articles or give new perspectives on scientific discourse. Therefore, we studied the characteristics of peer-reviewed references in blogs and the typical content of blog posts to gain insight into bloggers' motivations. The sample consisted of 391 blog posts from 2010 to 2012 in Researchblogging.org's health category. The bloggers mostly cited recent research articles or reviews from top multidisciplinary and general medical journals. Using content analysis methods, we created a general classification scheme for blog post content with 10 major topic categories, each with several subcategories. The results suggest that health research bloggers rarely self-cite and that the vast majority of their blog posts (90%) include a general discussion of the issue covered in the article, with more than one quarter providing health-related advice based on the article(s) covered. These factors suggest a genuine attempt to engage with a wider, nonacademic audience. Nevertheless, almost 30% of the posts included some criticism of the issues being discussed.
    Source
    Journal of the Association for Information Science and Technology. 66(2015) no.6, S.1136-1149
  12. Lazinger, S.S.; Bar-Ilan, J.; Peritz, B.C.: Internet use by faculty members in various disciplines : a comparative case study (1997) 0.00
    8.619048E-4 = product of:
      0.0017238096 = sum of:
        0.0017238096 = product of:
          0.0034476193 = sum of:
            0.0034476193 = weight(_text_:s in 390) [ClassicSimilarity], result of:
              0.0034476193 = score(doc=390,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = queryNorm
                0.08408674 = fieldWeight in 390, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=390)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science. 48(1997) no.6, S.508-518
  13. Bar-Ilan, J.: Evaluating the stability of the search tools Hotbot and Snap : a case study (2000) 0.00
    8.619048E-4 = product of:
      0.0017238096 = sum of:
        0.0017238096 = product of:
          0.0034476193 = sum of:
            0.0034476193 = weight(_text_:s in 1180) [ClassicSimilarity], result of:
              0.0034476193 = score(doc=1180,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = queryNorm
                0.08408674 = fieldWeight in 1180, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1180)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Online information review. 24(2000) no.6, S.439-449
  14. Bar-Ilan, J.: On the overlap, the precision and estimated recall of search engines : a case study of the query 'Erdös' (1998) 0.00
    8.619048E-4 = product of:
      0.0017238096 = sum of:
        0.0017238096 = product of:
          0.0034476193 = sum of:
            0.0034476193 = weight(_text_:s in 3753) [ClassicSimilarity], result of:
              0.0034476193 = score(doc=3753,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = queryNorm
                0.08408674 = fieldWeight in 3753, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=3753)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Scientometrics. 42(1998) no.2, S.207-228
  15. Bar-Ilan, J.; Peritz, B.C.: Evolution, continuity, and disappearance of documents on a specific topic an the Web : a longitudinal study of "informetrics" (2004) 0.00
    8.619048E-4 = product of:
      0.0017238096 = sum of:
        0.0017238096 = product of:
          0.0034476193 = sum of:
            0.0034476193 = weight(_text_:s in 2886) [ClassicSimilarity], result of:
              0.0034476193 = score(doc=2886,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = queryNorm
                0.08408674 = fieldWeight in 2886, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2886)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science and Technology. 55(2004) no.11, S.980-990
  16. Bar-Ilan, J.: ¬The Web as an information source on informetrics? : A content analysis (2000) 0.00
    7.387756E-4 = product of:
      0.0014775512 = sum of:
        0.0014775512 = product of:
          0.0029551024 = sum of:
            0.0029551024 = weight(_text_:s in 4587) [ClassicSimilarity], result of:
              0.0029551024 = score(doc=4587,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = queryNorm
                0.072074346 = fieldWeight in 4587, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046875 = fieldNorm(doc=4587)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science. 51(2000) no.5, S.432-443
  17. Bar-Ilan, J.: ¬The use of Web search engines in information science research (2003) 0.00
    7.387756E-4 = product of:
      0.0014775512 = sum of:
        0.0014775512 = product of:
          0.0029551024 = sum of:
            0.0029551024 = weight(_text_:s in 4271) [ClassicSimilarity], result of:
              0.0029551024 = score(doc=4271,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = queryNorm
                0.072074346 = fieldWeight in 4271, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046875 = fieldNorm(doc=4271)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Annual review of information science and technology. 38(2004), S.231-288
  18. Bar-Ilan, J.; Peritz, B.C.: Informetric theories and methods for exploring the Internet : an analytical survey of recent research literature (2002) 0.00
    7.387756E-4 = product of:
      0.0014775512 = sum of:
        0.0014775512 = product of:
          0.0029551024 = sum of:
            0.0029551024 = weight(_text_:s in 813) [ClassicSimilarity], result of:
              0.0029551024 = score(doc=813,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = queryNorm
                0.072074346 = fieldWeight in 813, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046875 = fieldNorm(doc=813)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Library trends. 50(2002) no.3, S.371-392
  19. Bar-Ilan, J.: What do we know about links and linking? : a framework for studying links in academic environments (2005) 0.00
    7.387756E-4 = product of:
      0.0014775512 = sum of:
        0.0014775512 = product of:
          0.0029551024 = sum of:
            0.0029551024 = weight(_text_:s in 1058) [ClassicSimilarity], result of:
              0.0029551024 = score(doc=1058,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = queryNorm
                0.072074346 = fieldWeight in 1058, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1058)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information processing and management. 41(2005) no.4, S.973-986
  20. Bar-Ilan, J.; Azoulay, R.: Map of nonprofit organization websites in Israel (2012) 0.00
    7.387756E-4 = product of:
      0.0014775512 = sum of:
        0.0014775512 = product of:
          0.0029551024 = sum of:
            0.0029551024 = weight(_text_:s in 253) [ClassicSimilarity], result of:
              0.0029551024 = score(doc=253,freq=2.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = queryNorm
                0.072074346 = fieldWeight in 253, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046875 = fieldNorm(doc=253)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science and Technology. 63(2012) no.6, S.1142-1167