Search (2 results, page 1 of 1)

  • × theme_ss:"OPAC"
  • × theme_ss:"Retrievalalgorithmen"
  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  1. Hancock-Beaulieu, M.; Walker, S.: ¬An evaluation of automatic query expansion in an online library catalogue (1992) 0.00
    0.0024328968 = product of:
      0.0072986903 = sum of:
        0.0072986903 = weight(_text_:e in 2731) [ClassicSimilarity], result of:
          0.0072986903 = score(doc=2731,freq=2.0), product of:
            0.065655835 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.045677755 = queryNorm
            0.1111659 = fieldWeight in 2731, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2731)
      0.33333334 = coord(1/3)
    
    Language
    e
  2. Beaulieu, M.; Jones, S.: Interactive searching and interface issues in the Okapi best match probabilistic retrieval system (1998) 0.00
    0.0024328968 = product of:
      0.0072986903 = sum of:
        0.0072986903 = weight(_text_:e in 430) [ClassicSimilarity], result of:
          0.0072986903 = score(doc=430,freq=2.0), product of:
            0.065655835 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.045677755 = queryNorm
            0.1111659 = fieldWeight in 430, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0546875 = fieldNorm(doc=430)
      0.33333334 = coord(1/3)
    
    Language
    e