Search (6 results, page 1 of 1)

Bar-Ilan, J.: Methods for measuring search engine performance over time (2002) 0.02

0.020668752 = product of:
  0.062006254 = sum of:
    0.062006254 = product of:
      0.12401251 = sum of:
        0.12401251 = weight(_text_:2002 in 305) [ClassicSimilarity], result of:
          0.12401251 = score(doc=305,freq=5.0), product of:
            0.20701107 = queryWeight, product of:
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.048293278 = queryNorm
            0.5990622 = fieldWeight in 305, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.0625 = fieldNorm(doc=305)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Source: Journal of the American Society for Information Science and technology. 53(2002) no.4, S.308-319
Year: 2002

Bar-Ilan, J.; Peritz, B.C.: Informetric theories and methods for exploring the Internet : an analytical survey of recent research literature (2002) 0.02

0.015501564 = product of:
  0.04650469 = sum of:
    0.04650469 = product of:
      0.09300938 = sum of:
        0.09300938 = weight(_text_:2002 in 813) [ClassicSimilarity], result of:
          0.09300938 = score(doc=813,freq=5.0), product of:
            0.20701107 = queryWeight, product of:
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.048293278 = queryNorm
            0.44929665 = fieldWeight in 813, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.046875 = fieldNorm(doc=813)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Source: Library trends. 50(2002) no.3, S.371-392
Year: 2002

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) 0.01
```
0.011438057 = product of:
  0.03431417 = sum of:
    0.03431417 = product of:
      0.06862834 = sum of:
        0.06862834 = weight(_text_:2002 in 2886) [ClassicSimilarity], result of:
          0.06862834 = score(doc=2886,freq=2.0), product of:
            0.20701107 = queryWeight, product of:
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.048293278 = queryNorm
            0.33152014 = fieldWeight in 2886, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2886)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
```
Abstract

The present paper analyzes the changes that occurred to a set of Web pages related to "informetrics" over a period of 5 years between June 1998 and June 2003. Four times during this time span, in 1998,1999, 2002, and 2003, we monitored previously located pages and searched for new ones related to the topic. Thus, we were able to study the growth of the topic, white analyzing the rates of change and disappearance. The results indicate that modification, disappearance, and resurfacing cannot be ignored when studying the structure and development of the Web.

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

0.0054525603 = product of:
  0.01635768 = sum of:
    0.01635768 = product of:
      0.03271536 = sum of:
        0.03271536 = weight(_text_:22 in 3364) [ClassicSimilarity], result of:
          0.03271536 = score(doc=3364,freq=2.0), product of:
            0.16911483 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.048293278 = 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)
  0.33333334 = coord(1/3)

Date: 20. 1.2015 18:30:22

Zhitomirsky-Geffet, M.; Bar-Ilan, J.: Towards maximal unification of semantically diverse ontologies for controversial domains (2014) 0.00

0.0043620486 = product of:
  0.013086145 = sum of:
    0.013086145 = product of:
      0.02617229 = sum of:
        0.02617229 = weight(_text_:22 in 1634) [ClassicSimilarity], result of:
          0.02617229 = score(doc=1634,freq=2.0), product of:
            0.16911483 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.048293278 = 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)
  0.33333334 = coord(1/3)

Date: 20. 1.2015 18:30:22

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) 0.00

0.0043620486 = product of:
  0.013086145 = sum of:
    0.013086145 = product of:
      0.02617229 = sum of:
        0.02617229 = weight(_text_:22 in 3071) [ClassicSimilarity], result of:
          0.02617229 = score(doc=3071,freq=2.0), product of:
            0.16911483 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.048293278 = 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)
  0.33333334 = coord(1/3)

Date: 20. 1.2015 18:30:22

Search (6 results, page 1 of 1)

Authors

Years

Themes