Search (2 results, page 1 of 1)

  • × theme_ss:"Retrievalstudien"
  • × author_ss:"Bar-Ilan, J."
  1. Bar-Ilan, J.: Methods for measuring search engine performance over time (2002) 0.01
    0.010181152 = product of:
      0.020362305 = sum of:
        0.020362305 = product of:
          0.04072461 = sum of:
            0.04072461 = weight(_text_:j in 305) [ClassicSimilarity], result of:
              0.04072461 = score(doc=305,freq=2.0), product of:
                0.14500295 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.045634337 = queryNorm
                0.28085366 = fieldWeight in 305, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0625 = fieldNorm(doc=305)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  2. Bar-Ilan, J.: ¬The Web as an information source on informetrics? : A content analysis (2000) 0.01
    0.0076358644 = product of:
      0.015271729 = sum of:
        0.015271729 = product of:
          0.030543458 = sum of:
            0.030543458 = weight(_text_:j in 4587) [ClassicSimilarity], result of:
              0.030543458 = score(doc=4587,freq=2.0), product of:
                0.14500295 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.045634337 = queryNorm
                0.21064025 = fieldWeight in 4587, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.046875 = fieldNorm(doc=4587)
          0.5 = coord(1/2)
      0.5 = coord(1/2)