Search (2 results, page 1 of 1)

  • × author_ss:"Fan, W."
  • × theme_ss:"Retrievalalgorithmen"
  • × year_i:[2000 TO 2010}
  1. Fan, W.; Fox, E.A.; Pathak, P.; Wu, H.: ¬The effects of fitness functions an genetic programming-based ranking discovery for Web search (2004) 0.02
    0.018595984 = product of:
      0.03719197 = sum of:
        0.03719197 = product of:
          0.05578795 = sum of:
            0.018678864 = weight(_text_:h in 2239) [ClassicSimilarity], result of:
              0.018678864 = score(doc=2239,freq=2.0), product of:
                0.113413334 = queryWeight, product of:
                  2.4844491 = idf(docFreq=10020, maxDocs=44218)
                  0.045649286 = queryNorm
                0.16469726 = fieldWeight in 2239, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4844491 = idf(docFreq=10020, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2239)
            0.03710909 = weight(_text_:22 in 2239) [ClassicSimilarity], result of:
              0.03710909 = score(doc=2239,freq=2.0), product of:
                0.15985602 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045649286 = 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)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    31. 5.2004 19:22:06
  2. Radev, D.; Fan, W.; Qu, H.; Wu, H.; Grewal, A.: Probabilistic question answering on the Web (2005) 0.01
    0.012446277 = product of:
      0.024892554 = sum of:
        0.024892554 = product of:
          0.03733883 = sum of:
            0.026415905 = weight(_text_:h in 3455) [ClassicSimilarity], result of:
              0.026415905 = score(doc=3455,freq=4.0), product of:
                0.113413334 = queryWeight, product of:
                  2.4844491 = idf(docFreq=10020, maxDocs=44218)
                  0.045649286 = queryNorm
                0.2329171 = fieldWeight in 3455, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  2.4844491 = idf(docFreq=10020, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3455)
            0.010922924 = weight(_text_:d in 3455) [ClassicSimilarity], result of:
              0.010922924 = score(doc=3455,freq=2.0), product of:
                0.0867278 = queryWeight, product of:
                  1.899872 = idf(docFreq=17979, maxDocs=44218)
                  0.045649286 = queryNorm
                0.1259449 = fieldWeight in 3455, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.899872 = idf(docFreq=17979, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3455)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)