Search (2 results, page 1 of 1)

  • × author_ss:"Fan, W."
  • × theme_ss:"Retrievalalgorithmen"
  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 
    0.024279177 = product of:
  0.060697943 = sum of:
    0.018028209 = weight(_text_:18 in 2239) [ClassicSimilarity], result of:
      0.018028209 = score(doc=2239,freq=2.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.15089248 = fieldWeight in 2239, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.046875 = fieldNorm(doc=2239)
    0.042669736 = weight(_text_:22 in 2239) [ClassicSimilarity], result of:
      0.042669736 = score(doc=2239,freq=2.0), product of:
        0.1838098 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.052489646 = 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)
  0.4 = coord(2/5)
    Date
    17. 2.1997 18:25:04
    31. 5.2004 19:22:06
  2. Radev, D.; Fan, W.; Qu, H.; Wu, H.; Grewal, A.: Probabilistic question answering on the Web (2005) 0.00 
    0.003605642 = product of:
  0.018028209 = sum of:
    0.018028209 = weight(_text_:18 in 3455) [ClassicSimilarity], result of:
      0.018028209 = score(doc=3455,freq=2.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.15089248 = fieldWeight in 3455, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.046875 = fieldNorm(doc=3455)
  0.2 = coord(1/5)
    Date
    17. 2.1997 18:25:04

Authors

Themes